OP 2215a Navy Guns

NAVORDOP 2215 VOLUME1 SECONDREVISION TECHNICALMANUAL

NAVY ,-

GUN-TYPE AMMUNITION

FOR

OFFICIAL

THIS PUBLICATION

USE ONLY

SUPERSEDES

NAVORD OP 2215, VOLUME 1, FIRST REVISION DATED 1 MARCH 1967

Published by Direction of Commander, Naval Ordnance Systems Command

NOTICE -

Binder

is not sapplied with this ptiblication.

If binder is required --.

regzcisition from Naual

Publications and Forms Center, 5801 Aventie, Philadelphia,

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Binder stock nzcmber O~~O-OOO-O~O~

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NAVORDOP 2215 VOLUME1 SECONDREVISION TECHNICALMANUAL

NAVY GUN-TYPE AMMUNITION -. -_

--

FOR

OFFICIAL

THIS PUBLICATION

USE ONLY

SUPERSEDES

NAVORD OP 2215, VOLUME 1, FIRST REVISION DATED 1 MARCH 1967

Published by Direction of Commander, Naval Ordnance Systems Command

15 JANUARY1972

NAVORDOP 2215VOLUME 1 SECONDREVISION

LIST OF EFFECTIVEPAGES

Page

Issue

Original Title Original A ChangeRecord/ Change Record-2(blank) Original Foreword/ Original Foreword-2(blank) Original i thru xviii Original l-1 thru l-10 Original 2-1 thru 2-42 (blank) 3-1 thru 3-124 (hlanlc) Original Original 4-1 thru 4-52 (blank) Original 5-1 thru 5-6 (blank)

Page 6-l thru 6-6 (blank) 7-1 thru 7-4 8-l thru 8-6 9-l thru 9-14 (blank) 10-l thru lo-12 A-l thru A-6 (blank) B-l thru B-12 C-l thru C-34 D-l thru D-10 (blank) E-l thru E-10 (blank) F-l thru F-8 G-l thru G-4 (blank)

Issue Original Original Original Original Original Original Original Original Original Original Original Original

N/WORDOP 2215VOLUME 1 SECONDREVISION

CHANGERECORD

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ChangeRecord/Change Record-2 blank

NAVORDOP 2215 VOLUME 1 SECONDREVISION

FOREXWRD

NAVORDOP 2215,Volume 1, SecondRevisiondescribesNavy gun-typeammunitionfired from guns over .60 caliber,and includesitems closelyassociatedwith gun ammunition. This publicationhas been preparedto providetrainedand authorized personnelwith generaland specificinformationconcerningthe description,identification, and use of gun arrununition. The SecondRevisionof NAVORDOP 2215,Volume 1, incorporates all previouschangesand additionsof materialtheretoand supersedesNAVORDOP 2215,Volume 1, First Revision,dated 1 March 1967. Subjectssuch as fire controlsystems,guns, and handling equipmentwhich are not part of the -ition componentsare not includedin this publication.Also not includedare aranunition and associatedcomponentsprocuredfrom the Army for use by Naval Units ashore. -

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The contentsof this manual are officialand incorporate technicaldata availableup to the cutoffdate of 15 January 1972. Commentsor inquiriesrelativeto errorsdiscovered,items omitted,or new itemswhich shouldbe added are invitedand shouldbe forwardedto: CommandingOfficer,Naval Ordnance Station,Louisville,Kentucky40214,Attention: Code 506.

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Foreword/Foreword-2 blank

NAVORD OP 2215VOLUME 1 SECONDREVISION

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TABLE OF CONTENTS

Page

Chapter

Page

Chapter

LIST OF ILLUSTRATIONS ............ vii -_

l-32 1-33 l-34 l-35 l-36 l-37 l-38 l-39

LIST OF TABLES ................... xi SAFETYSUMMARY................... xiv

- _1 INTRODUCTION

_A

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l-l l-2 l-4 l-5 l-7 l-10 l-11 1-12

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1-13 l-14 1-15 1-16 1-17 1-18 1-19

l-20 1-21

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l-23 l-24 l-25 l-26 l-27 l-28 1-29 1-31

Scope and Purpose .......l-l l-l Coverage................ IntendedUses ...........l-l Arrangementof Material.. l-l How to Use the Manual ... l-l Classification of Gun Ammunition............ l-l Classification by Size of Gun ................ l-l Classification by Assembly.............. l-l Case Ammunition.........l-l Fixed Ammunition........l-3 .... l-3 Sepcarated -ition Separate-Loading (Bagged Gun) Ammunition.......l-3 Classification by l-3 ServiceUse ........... ServiceAmmunition......l-3 Target and Training l-3 Ammunition............ Dummy Drill Ammunition.. l-3 PrimaryComponentsof l-3 Ammunition............ l-3 Explosives.............. ..t... l-4 Projectile........ l-4 Fuze .................... 1-4 Primer .................. 1-4 Tracer .................. PropellingCharges ......l-4 MiscellaneousComponents.l-4 l-4 Gas Checks ..............

1-41 l-42 l-43 1-44

I

l-45 l-46 l-47 1-51 l-53 l-54 1-57 l-58

TracerWashers .........1-4 l-4 Adapters............... Plasticand Cork Plugs . l-4 1-4 wad .................... DistancePiece .........l-4 l-6 Lead Foil .............. Fuze CavityLiner ......l-6 Handlingand Shipping l-6 Parts ................ 1-6 Spacers ................ CartridgeExtractors... l-6 WaterproofProtecting l-6 Caps ................. Projectileand Cartridge Nose Supports........l-6 l-6 Grommets............... AmmunitionData Cards .. l-6 AmmunitionContainers.. l-6 AmmunitionBoxes .......l-7 CartridgeTanks ........l-7 PowderTanks ...........1-7 Fuze and Primer Cans ... 1-9 Other Publicationsfor l-9 Reference............

2 WITION 2-l 2-3 2-5

2-11 2-12 2-15 2-16 2-20 2-21 2-22

ASSEMBLIES

Organizationof Data ... 2-l FurtherReferences..... 2-1 RocketAssistedProjectile (RAP),5"/38Mk 57 Mods 0 and 1 ...... 2-35 Description............ 2-35 MinimumRange .......... 2-37 Safety and Training.... 2-37 WI Fuzes for 5"/38RAP. 2-37 IgniterMk 279 ......... 2-38 Storingand Handling ... 2-39 SafetyPrecautions..... 2-40 RAP, 5"/54Mk 58 Mod 0.. 2-40 Description............ 2-40 i

NAVORD OP 2215VOW SECONDREVISION

1 TABLE OF CONTENTS(Continued)

Chapter

Page

2 AMMUNITIONASSEMBLIES(Cont'd.) 2-23 2-24 2-25 2-26 2-27

MinimumRange ..........2-40 Safetyand Training.... 2-40 CVT Fuze for 5"/54RAP . 2-40 IgniterMk 279 Mod 1 ... 2-41 Storingand Handling... 2-41

3 FUZES 3-l 3-3 3-5 g:; 3-8 3-9 3-10 3-11 3-12 3-13 3-14 3-15 3-16 3-17 3-18

3-19 3-20 3-21 3-22 3-23 3-24 3-25 3-26 3-27 3-28 3-29 3-30 3-31 3-32 3-33 3-34 3-35 3-36 3-37 ii

Organizationof Data ... 3-l FurtherReferences.....3-l MechanicalTime Fuzes 3-z a(gF&. .............. ............... 3-5 Mk 50 MTF .............. 3-9 Mk 51MTF .............. 3-13 Mk 57 MTF .............. 3-15 Mk 61 MI??.............. 3-15 Mk 62 MTF .............. 3-18 Mk 342 MTF ............. Mk 349 MTF ............. 3-21 MS64 MTF ............... 3-27 M565ElMTF ............. 3-33 Point DetonatingFuzes 3-37, (PDF) ................ 3-37 Mk 26 PDF .............. 3-37 Mk 27 PDF .............. 3-38 Mk 29 PDF .............. 3-42 Mk 30 PDF .............. 3-46 Mk 66 PDF .............. 3-49 Mk 78 PDF .............. Base DetonatingFuzes 3-51 (BDF) ................ Mk 20 BDF .............. 3-51 3-52 Mk 21 BDF .............. Mk 28 EDF .............. 3-55 3-56 Mk 31 BDF .............. 3-58 Mk 48 BDF .............. Mk 64 BDF .............. 3-61 Mk 83 BDF .............. 3-65 3-67 M66 BDF ................ AuxiliaryDetonating Fuzes (ADF) ..........3-69 Mk 43 ADF .............. 3-69 Mk 44 ADF .............. 3-69 Mk 52 ADF .............. 3-71 Mk 54 ADF .............. 3-71 3-73 Mk 55 ADF ..............

Chapter 3-38 3-39 3-40 3-41 3-42 3-43 3-44 3-45 3-46 3-47 3-48 3-49 3-50 3-51 3-52 3-54 3-55 3-56 3-57 3-58 3-59 3-60 3-61 3-62 3-63

3-65 3-66 3-67 3-68

Page Mk 89 ADF .............. 3-73 Mk 379 and Mk 384 ADFs . 3-75 Mk 395 and Mk 396 ADFs . 3-81 VariableTime Radio Frequency(VT-RF) Fuzes ................ 3-85 Description............ 3-85 Operation.............. 3-85 SafetyFeatures........ 3-85 Mk 71VT-RF Fuze ....... 3-86 Mk 72 VT-RF Fuze ....... 3-88 Mk 73 VT-RF Fuze ....... 3-91 Mk 74 VT-RF Fuze ....... 3-93 Mk 75 VT-W Fuze ....... 3-95 Mk 76 VT-RF Fuze ....... 3-97 Mk 79 VT-W Fuze ....... 3-99 VariableTime InfraRed @'I'-IR) Fuzes .... 3-101 Description............ 3-101 Operation.............. 3-101 SafetyFeatures ........ 3-101 Mk 90 VT-IR Fuze ....... 3-101 Mk 91 VT-IR Fuze ....... 3-105 Mk 92 VT-IR Fuze ....... 3-107 ControlledVariable Time (CVT)Fuzes ..... 3-108 M513A2 and M514Al CVT Fuzes ................ 3-108Mk 338 CVT Fuze ........ 3-111 CVT Fuze and Adapter Assemblies(Mks 357, 358, 359, 360, 361, 362, 365, 366, 367, -369, 370, and 371) .. 3-113 Fuze Boosters.......... 3-123 Mk 5 Mod 0 Booster ..... 3-123 Mk 30 Mod 0 Booster .... 3-123 Mk 39 Mod 0 Booster .... 3-123

4 PRIMERS 4-l Organizationof Data

... 4-3 FurtherReferences..... 4-5 Case ElectricPrimers .. 4-6 PrimerMk 37 and Mods .. 4-7 PrimerMk 38 and Mods .. 4-8 PrimerMk 39 and Mods .. 4-9 PrimerMk 40 and Mods .. 4-10 PrimerMk 42 and Mods ..

4-l 4-l 4-2 4-2 4-4 4-6 4-8 4-10

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NAVORDOP 2215 VOLUME 1 SECONDREVISION TABLE OF CONTENTS(Continued) .-

Page

Chapter i .

4 PRIMERS (Cont'd.) 4-11 4-12 4-13 4-14 4-15

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4-16 4-17 4-18 4-19 4-20 4-21 4-22 4-23 4-24 4-25 4-26

.I_ 4-27 4-28 4-29

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4-30 4-31 4-32

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PrimerMk 45 and Mods .. 4-14 PrimerMk 48 and Mods .. 4-16 PrimerMk 153 Mod 0 .... 4-20 PrimerMS2 ............. 4-22 Case Percussion Primers .............. 4-24 PrimerMk 10 Mod 9 ..... 4-24 PrimerMk 21 and Mods .. 4-26 PrimerMk 22 and Mods .. 4-28 PrimerMk 30 Mod 0 ..... 4-30 PrimerMk 31Mod 0 ..... 4-32 PrimerM36Al ........... 4-34 PrimerMk 41 Mod 0 ..... 4-36 Case Combination Primers .............. 4-38 PrimerMk 20 and Mods .. 4-38 PrimerMk 35 and Mods .. 4-42 Case Combination IgnitionPrimers ..... 4-44 PrimerMk 13 and Mods .. 4-44 PrimerMk 27 Mod 0 ..... 4-46 Lock Combination Primers .............. 4-48 PrimerMk 15 and Mods .. 4-48 Case ElectricTest Primers .............. 4-50 PrimerMk 44 Mod 0 ..... 4-50

5 TRACERS 5-l 5-3

Organizationof Data ... 5-l FurtherReferences..... 5-l

6 CARTRIDGECASES 6-l 6-3

Organizationof Data ... 6-l FurtherReferences..... 6-1

7 SPECIALCHARGES 7-1 7-3

Organizationof Data ... 7-l FurtherReferences..... 7-l

8 AMWNITION CONTAINERS -_

8-l 8-2

Organizationof Data ... 8-l FurtherReferences..... 8-l

Page

Chapter 9 MISCELLANEOUSCOMPONENTS AND DETAIL PARTS 9-l 9-3

Organizationof Data ... 9-l FurtherReferences..... 9-l

10 OBSOLESCENTAND OBSOLETE PROJECTILEASSEMBLIES 10-l Organizationof Data ... 10-l 10-3 FurtherReferences..... 10-l Notes .................. lo-12 Appendix A EXPLOSIVES A-l A-3 A-7 A-9 A-10 A-11 A-12 A-13 A-15 A-16 A-18 A-19 A-20

Introduction........... A-l Propellants............ A-2 SmokelessPowder .......A-2 Single-BasePowder ..... MultibasePowder .......f-Z Index of Powder ........A-3 Class Designation Letters .............. A-3 Black Powder ........... A-4 Classesof Black Powders .............. A-4 High Explosives........A-4 Initiators............. A-4 Boosters............... A-5 BurstingCharges .......A-5

B PROJECTILES B-l B-3 B-4 B-5 B-6 B-7 B-8 B-9 B-11 B-12 B-13 B-14 B-15 B-16

Introduction........... B-l CommonFeatures........B-l Ogive .................. B-l Bourrelet.............. B-l B-l BdY ................... RotatingBand ..........B-2 Base ................... B-2 Classification .........B-2 Antiaircraft........... B-2 AntiaircraftCommon .... B-2 Armor-Piercing.........B-3 Armor-Piercing-Tracer .. B-3 Cornnon................. B-5 B-5 Chemical............... iii

NAVORDOP 2215 VOLUME 1 SECONDREVISION

-

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TABLE OF CONTENTS(Continued) Appendix

Page

B PROJECTILES(Cont'd.) B-17 B-18 B-19 B-20 B-21 B-22

Dark Ignition..........B-5 B-5 Drill .................. Durmny.................. B-6 High Capacity..........B-6 High Explosive.........B-6 High ExplosiveIncendiary........... B-6 HE-MT and HE-PD ........B-6 High Explosive-Tracer .. B-9 High Explosive.... B-9 Incendiary-Tracer Illuminating...........B-9 RocketAssisted B-9 Projectile........... Self-Destroying, NonSelf-Destroying ......B-9 B-10 Target ................. Fuze Cavity Liner-VT... B-11 Nonfragmenting.........B-11 Window (Chaff-Loaded) .. B-11

B-23 B-24 B-25 B-26 B-27 B-28 B-29 B-30 B-31 B-32 C

FUZES C-l c-3 c-4 C-6 c-7 C-8 c-9 C-10 C-11 C-12 C-14 C-15 C-16 C-17 C-18 C-19 C-20 C-21 C-22 C-23

iV

Introduction...........C-l Identification and Marking .............. C-l GeneralFuze Arming and Function......... Setback ................ :-: AngularSetback ........C-l Creep .................. CentrifugalForce ......E-g C-3 Friction ............... c-3 Impact ................. ExplosiveComponents C-3 in Fuzes ............. C-3 Primer ................. C-3 Detonator.............. Delay .................. c-4 c-4 Relay .................. C-4 Lead ................... c-4 Booster ................ MechanicalTime Fuzes ................ c-4 (MI-F) C-4 Description............ Components............. c-4 Operation.............. c-7

Appendix

Page

C-24 ExplosiveComponent (Magazine)........... C-8 C-25 SafetyFeatures ........C-8 C-26 Point Detonating Fuzes (PDF) ..........C-8 C-27 GeneralDescription.... C-8 C-28 Type I PDF ............. C-8 c-30 Descriptionof Type I C-9 PDF .................. c-31 Operation.............. C-9 C-32 SafetyFeatures........C-10 c-33 Type II PDF ............ C-10 c-35 Descriptionof Type II c-10 PDF .................. C-36 Operation.............. C-10 c-37 SafetyFeatures........C-12 C-38 AuxiliaryDetonating Fuzes (ADF) ..........c-12 c-39 GeneralDescription.... C-12 c-40 ?)rpeI ADF ............. C-13 C-42 Descriptionof Type I c-13 ................................ c-43 OpgEtion E-i: c-44 SafetyFeatures ........ c-13 c-45 Type II ADF ............ c-47 Descriptionof Type II c-14 C-48 Op%%ion E-i: ................................ c-49 SafetyFeatures........ c-50 Base DetonatingFuzes c-16 (BDF) ................ c-51 GeneralDescription.... C-16 C-52 Type I BDF ............. C-16 c-54 Descriptionof Type I C-16 BDF .................. c-55 Operation.............. C-16 C-56 SafetyFeatures........C-18 c-57 Type II BDF ............ C-18 c-59 Descriptionof Type II BDF .................. C-18 C-60 Operation.............. C-18 C-61 SafetyFeatures........C-18 C-62 Proximity(VT)Fuzes ... C-18 C-64 VariableTime Radio Frequency(VT-RF) Fuzes ................ c-19 C-65 Description............ c-19 C-66 Fuze Body .............. c-19 C-67 Oscillator............. C-21

NAVORDOP 2215 VOLUME 1 SECONDREVISION

r= TABLE OF CONTENTS(Continued) Page

Appendix C FUZES (Cont'd.)

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C-68 Amplifier.............. c-21 C-69 ReserveEnergizer......C-21 c-70 Rear FittingSafety Device ............... C-22 c-71 ADFs Used in Early Fuzes ................ C-25 C-25 C-72 Booster ................ c-73 Assemblyand Waterproofing........C-25 c-74 ~;;;E$on .............. E-g c-75 ................C-26 C-76 Fuze Arming ............ C-27 c-77 Armed Flight ........... C-78 Self-Destruction .......C-28 c-79 VariableTime Infra-Red (VT-IR)Fuzes ........E-ii C-80 Description............. C-28 C-81 Fuze Body .............. C-82 Fuze Monitor ........... C-28 C-83 Firing Control .........C-28 C-84 ReserveEnergizer......c-29 C-85 Rear FittingSafety Device ............... C-29 C-86 Fuze Booster ........... C-29 C-87 Assemblyand Waterproofing........E-t: C-88 Operation............... C-89 CVT Fuzes .............. C-30 c-90 Description............ C-30 c-91 ImpactDevice ..........c-30 ... C-30 c-92 Oscillator-Amplifier c-93 ReserveEnergizer......C-30 c-94 SwitchRing Assembly... C-30 c-95 Rear FittingSafety c-30 Device ............... C-96 AuxiliaryDetonating c-30 Fuze ................. c-97 Waterproofing..........E-z: C-98 Operation............... c-99 Effectiveness..........c-33 C-100 Operability............ C-33 D PRIMERSAND TRACERS D-l D-3 D-4

D-l Introduction........... D-l Primers ................ D-l Definition.............

Appendix D-5 D-6 D-7 D-8 D-9 D-10 D-11 D-12 D-13 D-14 D-15 D-16 D-17 D-18 D-19 D-20 D-21 D-22 D-23 D-24

Page

Classification .........D-l PercussionPrimers .....D-l ElectricPrimers .......D-l IgnitionPrimers .......D-2 PercussionCaps ........D-2 Case PercussionPrimers.D-3 Case PercussionIgnition Primers .........D-3 Case ElectricPrimers .. D-5 Case CombinationIgnition Primers .........D-5 Lock Combination Primers .............. D-6 ElectricTest Primers .. D-7 Drill Primers ..........D-7 Tracers ................ D-7 Definition............. D-7 Classifications ........D-7 Operation.............. D-8 Composition............ D-8 Use .................... D-8 Colors ................. D-9 TracerWashers .........D-9

E PROPELLINGDEVICESAND SALUTINGCHARGES E-l E-3 E-4 E-5 E-6 E-7 E-8 E-9 E-10 E-11 E-12 E-13 E-14 E-15 E-16 E-17 E-18 E-19

Introduction........... E-l Case Ammunition........E-l Description............ E-l Differencesin Fixed and SeparatedRounds . E-l CartridgeCase Components...........E-l ReducedCharge .........E-4 Bagged Charges .........E-5 Description............ E-5 Material ............... E-6 IgnitionEnd ........... E-6 Loading ................ E-6 Classification of Bagged Charges .......E-6 Lead Foil .............. E-7 SpecialCharges ........E-7 SalutingCharges .......E-7 TorpedoImpulseCharge . E-7 Depth ChargeProjector ImpulseCharges ......E-9 Short Charges ..........E-9 V

NAVORDOP 2215 VOLUME 1 SECONDREVISION TABLE OF CONTENTS(Continued) Appendix F

Page

GAS CHECK SEAL INSPECTION CRITERIAFOR PROJECTILES ASSEMBLEDWITH BASE FUZES/ BASE FUZE HOLE PLUGS F-l F-4 F-6 F-7 F-8 F-9

Background............. Criteriato be Used .... g-t MandatoryGCS Requirements......... F-3 AdditionalAcceptable GCS Conditions....... F-3 UnacceptableGCS Conditions........... F-3 Fleet Inspectionof ProjectileGas Check Seals Subsequentto Issue ................ F-8

Appendix

Page

G GAS NOSE FUZEIIEMCWAL/REPLACEMENT ABOARD SHIP G-l

G-3 G-4 G-5

G-7 G-8

Proceduresfor 5"/38, 6"/47 Single-Purpose, and 8" Projectiles with Nose Fuze Adapters............. Nose Fuze Removal ...... :-: Nose Fuze Replacement.. G-l Proceduresfor 5"/54 and 6"/47 Dual-Purpose Projectileswith Nose Fuze Adapters........ G-3 Nose Fuze Removal ...... G-3 Nose Fuze Replacement.......... G-3

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NAVORDOP 2215 VOLUME 1 SECONDREVISION

LIST OF ILLUSTRATIONS -

Figure l-l l-2 l-3 -1~--

l-4 2-l 2-2

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2-3 2-4 3-l 3-2

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3-3 3-4 3-5 3-6 3-7 3-8 3-9 3-10 3-11 3-12 3-13 3-14 3-15

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3-16 3-17

Page

Types of Gun Ammunition... l-2 Miscellaneous Gun AmmunitionComponents and Details ............. l-5 TypicalBox-Type Containers.............. l-7 TypicalTank-Type Containers.............. 1-8 Mk 57 Mod 1 RAP (Rocket AssistedProjectile), CutawayView ............ 2-35 Mk57ModlRAP, ExternalView ........... 2-37 Mk 279 Mod 1 Igniter...... 2-39 Mk 58 Mod 0 RAP ........... 2-41 Mk 25 Mod 5MTF (Mechanical Time Fuze) .. 3-2 Mk 25 Mod 5 MTF, SliderType EscapementRelease . 3-2 Mk 50 Mod 8 MTF ........... 3-4 Mk 50 Mod 8 MTF Details ... 3-6 Mk 51 Mod 2 MlYF........... 3-8 Mk 51 Mod 2 MTF Details ... 3-10 Mk 57 Mod 2 MTF ........... 3-12 Mk 57 Mod 2 MTF Centrifugal Gear Assembly........... 3-12 Mk 61 Mod 1 MTF ........... 3-14 Mk 62 Mod 1 MTF ........... 3-14 Mk 62 Mod 1 MTF Details ... 3-16 Mk 342 Mod 0 MI'F.......... 3-18 Mk 349 Mod 0 MTF, ExternalView ........... 3-20 Mk 349 bIod0 MTF, CutawayView ............ 3-22 Mk 349 bbd 0 MTF Timing MechanismSchematic..... 3-24 MS64 MTSQ (Mechanical Time Superquick)Fuze ... 3-26 MS64 MTSQ Fuze, ExplodedView ........... 3-28

Figure

Page

3-18 MS64 MEQ Fuze, 3-30 Time Scale .............. 3-32 3-19 MS65 MTSQ Fuze ............ 3-20 Mk 26 Mod 1 PDF (Point DetonatingFuze) ........3-35 3-21 Mk 26 Mod 1 PDF, SectionalView ..........3-35 3-22 Mk 27 Mod 0 PDF ...........3-36 3-23 Mk 29 Mod 3 PDF ...........3-38 3-24 Mk 29 Mod 5 PDF ...........3-40 3-25 Mk 29 PDF, Old and New 3-41 Production.............. 3-26 Mk 30 Mod 3 PDF ...........3-42 3-27 Mk 30 Mod 5 PDF ...........3-44 3-28 Mk 30 PDF, Old and New 3-45 Production.............. 3-46 3-29 Mk 66 PDF ................. 3-30 Mk 79 Mod 0 PDF ...........3-48 3-31 Mk 20 Mod 5 BDF (Base DetonatingFuze) ........3-50 3-52 3-32 Mk 21Mod 3 BDF ........... 3-33 Mk 28 Mod 17 BDF ..........3-54 3-56 3-34 Mk 31 Mod 2 BDF ........... 3-58 3-35 Mk 48 Mod 3 BDF ........... 3-60 3-36 Mk 64 Mod 2 BDF ........... 3-62 3-37 Mk 64 Mod 3 BDF ........... 3-38 Mk 83 Mod 0 BDF ...........3-64 3-66 3-39 M66A2 BDF ................. 3-40 Mk 43 Mod 1 ADF (Auxiliary DetonatingFuze) ........3-68 3-41 Mk 44 Mod 1 ADF ...........3-68 3-42 Mk 52 Mod 0 ADF ...........3-70 3-43 Mk 54 Mod 0 ADF ...........3-70 3-44 Mk 55 Mod 0 ADF ...........3-72 3-45 Mk 89 Mod 0 ADF ...........3-72 3-46 Mk 379 Mod 0 ADF, TypicalApplications.... 3-74 3-47 Mk 379 Mod 0 ADF ..........3-76 3-48 Mk 379 Mod 0 ADF Arming Delay Mechanism.........3-77

vii

NAVORDOP 2215VOLUME 1 SECONDREVISION LIST OF ILLUSTRATIONS(Continued) Figur re

Page

3-49 Mk 384 Mod 0 ADF, TypicalApplication..... 3-78 3-50 Mk 384 Mod 0 ADF .......... 3-79 3-51 Mk 395 Mod 0 ADF, TypicalApplications.... 3-80 3-52 Mk 395 Mod 0 ADF .......... 3-82 3-53 Mk 396 Mod 0 AUF, TypicalApplications.... 3-83 3-54 Mk 396 Mod 0 ADF .......... 3-84 3-55 Mk 71 VT (Proximity) Fuze . 3-86 3-56 Mk 72 VT Fuze ............. 3-88 3-57 Mk 73 VT Fuze ............. 3-90 3-58 Mk 74 VT Fuze ............. 3-92 3-59 Mk 75 VT Fuze ............. 3-94 3-60 Mk 76 VT Fuze ............. 3-96 3-61 Mk 79 VT Fuze ............. 3-98 3-62 Mk 90 Mod 0 VT-IR Fuze .... 3-100 3-63 Mk 90 Mod 1 VT-IR Fuze .... 3-102 3-64 Mk 91 VT-IR Fuze .......... 3-104 3-65 Mk 92 VT-IR Fuze .......... 3-106 3-66 Mk 338 Mod 0 CVT (Controlled Variable Time) Fuze .............. 3-110 3-67 Mk 357 Mod 0 CVT Fuze and AdapterAssembly.... 3-112 3-68 Mk 358 Mod 0 CVT F'uze and AdapterAssembly.... 3-112 3-69 Mk 359 Mod'0 CVT Fuze and AdapterAssembly.... 3-114 3-70 Mk 360 Mod 0 CVT Fuze and AdapterAssembly.... 3-114 3-71 Mk 361Mod 0 CVT Fuze and AdapterAssembly.... 3-116 3-72 Mk 362 Mod 0 CVT Fuze and AdapterAssembly.... 3-116 3-73 Mk 365 Mod 0 CVT Fuze and AdapterAssembly.... 3-116 3-74 Mk 366 Mod 0 CVT Fuze and AdapterAssembly.... 3-116 3-75 Mk 367 Mod 0 CVT Fuze and Mapter Assembly.... 3-118 3-76 Mk 369 Mod 0 CVT Fuze and AdapterAssembly.... 3-118 3-77 Mk 370 Mod 0 CVT Fuze and AdapterAssembly.... 3-118 3-78 Mk 371Mod 0 CVT Fuze and AdapterAssembly.... 3-118

Figure

Page

3-79 TypicalFuze and Adapter Assembly,ExplodedView . 3-120 3-80 TypicalFuze and Adapter AssemblyInstalledin 5"/54Projectile........ 3-121 3-81 TypicalFuze and Adapter AssembliesInstalledin 5"/38,6"/47,and 8"/55 VT Projectilesand in 5"/38RAP ............... 3-121 3-82 Mk 5 Mod 0 Booster........ 3-122 3-83 Mk 30 Mod 0 Booster ....... 3-122 3-84 Mk 39 Mod 0 Booster ....... 3-122 4-l Mk 37 ElectricScrew Primer .................. 4-2 4-2 Mk 38 ElectricScrew Primer .................. 4-4 4-3 Mk 39 ElectricScrew Primer .................. 4-6 4-4 Mk 40 ElectricScrew Primer .................. 4-8 4-5 Mk 42 Mod 0 Electric Screw Primer ............ 4-10 4-6 Mk 42Mods land 2 ElectricScrew Primer ... 4-12 4-7 Mk 45 ElectricScrew Primer .................. 4-14 4-8 Mk 48 Mod 0 Electric Screw Primer ............ 4-16 4-9 Mk 48 Mod 1 Electric Screw Primer ............ 4-18 4-10 Mk 153 Case Electric Primer .................. 4-20 4-11 M52A3B2 Case Electric Primer .................. 4-22 4-12 Mk 10 Case Percussion Primer .................. 4-24 4-13 Mk 21 PercussionScrew Type Primer ........*....4-26 4-14 Mk 22 Case Percussion (PushFit) Primer ....... 4-28 4-15 Mk 30 Case Percussion Primer .................. 4-30 4-16 Mk 31 Case Percussion (PushFit) Primer ....... 4-32 4-17 M36Al Case Percussion Primer .................. 4-34

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~-viii

NAVORD OP 2215VOLUME 1 SECONDREVISION LIST OF ILLUSTRATIONS (Continued) Figure /I -.

-

--

--

-

-?

-_

Page

4-18 Mk 41 PercussionScrew Primer .................. 4-36 4-19 Mk 20 Mod 0 Percussion ElectricScrew (Case Combination) Primer ..... 4-38 4-20 Mk 20 Mods land 2 PercussionElectric Screw (CaseCombination) Primer .................. 4-40 4-21 Mk 35 PercussionElectric Screw (CaseCombination) Primer .................. 4-42 4-22 Mk 13 PercussionElectric Screw (CaseCombination Ignition)Primer ........ 4-44 4-23 Mk 27 PercussionElectric Screw (CaseCombination Ignition)Primer ........ 4-46 4-24 Mk 15 PercussionElectric Lock Primer ............. 4-48 4-25 Mk 44 ElectricScrew (CaseElectricTest) Primer .................. 4-50 B-l TypicalProjectile........ B-l B-2 TypicalAntiaircraft Projectile.............. B-2 Typical Antiaircraft B-3 CommonProjectile....... B-3 B-4 Variationsof ArmorPiercingProjectiles.... B-4 B-5 TypicalCommonProjectile. B-4 B-6 TypicalChemical Projectile(White PhosphorusLoad) ........ B-5 B-7 TypicalDrill Projectile.. B-5 B-8 TypicalHigh Capacity Projectile.............. B-6 B-9 20mmAAHE-Type Projectiles............. B-7 B-10 40mm HE-Type Projectiles............. B-7 B-11 20mm AC Projectiles....... B-8 B-12 TypicalIlluminating Projectile.............. B-9 B-13 TypicalTargetProjectile. B-10 B-14 TypicalFCL-VT Projectile.............. B-11

Figure

Page

B-15 TypicalNonfragmenting Projectile.............. B-12 B-16 TypicalWindow Projectile. B-12 C-l FarcesThat Work on Fuzes . C-2 c-2 TypicalMTF ............... C-5 c-3 TypicalMTF Timing Mechanism............... C-6 c-4 Type I PDF ................ C-9 c-11 c-5 Type II PDF ............... C-6 Type I ADF ................ C-14 c-7 Type II ADF ............... C-15 C-8 Type I BDF ................ C-17 c-9 Type II BDF ............... C-19 c-10 Type VT-RF Fuze ........... C-20 c-11 Mk 3 Mod 1 Spin Breaker ... C-23 c-12 Mk 18 Mod 2 Rear Fitting C-24 SafetyDevice ........... c-13 Reed Spin Switch ..........C-25 c-14 OperationalSequenceof VT-RF Fuze Components when Fired from a Gun ... C-27 c-15 TypicalCVT Fuze ..........C-31 C-16 CVT Fuze Time Scale .......C-32 c-17 Arming Sequencefor CVT Fuzes ............... C-34 D-l PercussionCap Type Primer .................. D-2 D-2 ElectricCap Type Primer .................. D-2 D-3 TypicalCase Percussion Primer .................. D-2 D-4 TypicalCase Percussion IgnitionPrimer .........D-3 D-5 TypicalCase Electric Primer .................. D-4 D-6 TypicalCase Combination IgnitionPrimer .........D-5 D-7 TypicalLock Codination Primer .................. D-6 D-8 TypicalElectricTest Primer .................. D-7 D-9 TypicalInternalTracer ... D-7 D-10 TypicalExternalTracer ... D-8 D-11 Tracerfor 20mm AC D-9 fbnmunition .............. E-l TypicalRound of Fixed E-2 Ammunition..............

ix

NAVORDOP 2215VOLUME 1 SECONDREVISION LIST OF ILLUSTRATIONS(Continued) Figure E-2 E-3 E-4 E-5 E-6 E-7 E-8 E-9

X

Page

TypicalRound of 20mm AC Ammunition........... E-2 TypicalCartridgeCase for SeparatedAmmunition.... E-3 TypicalPolyurethane Plug .................... E-4 BaggedCharges ............ E-5 IgnitionEnd of Bagged Charge .................. E-6 m&;iezaluting ................. E-7 TypicalTorpedoImpulse Charge .................. E-8 TypicalDepth Charge ProjectorImpulse Charge ..,.....,......... E-9

Figure F-l

Page

MandatoryGCS (GasCheck Seal) Requirements...... F-2 F-2 SlightGap Around GCS ..... F-2 F-3 i%ltiplePress of GCS ..... F-4 F-4 CantedGCS ................ F-4 F-5 EntireGCS Missing ........ F-5 F-6 InvertedGCS .............. F-S F-7 Missing Lead Core ......... F-6 F-8 GCS Not Fully or ProperlySeated ......... F-6 F-9 GCS SeatedAbove Either or Both ProjectileBase and Base Fuze/Plug...... F-7 F-10 Torn, Cut, or GougedGCS .. F-7 G-l Use of Vise Grip Nose Fuze Adapter ............ G-2

NAVORD OP 2215VOLUME 1 SECONDREVISION

.--..

LIST OF TABLES

Table 2-l 2-2 - mR--.

2-3 2-4 2-5

----4 2-6 2-7 2-8 2-9 2-10 2-11 2-12 2-13 2-14 2-15 2-16

--

2-17

Page 2Onrm AA Ammunitionfor Guns Mk 4, Projectile 2-2 Assembly...*............ PropellingChargeAssembly for 2Or1nn AA Ammunition.. 2-3 20mm M DummyAmmunition, ProjectileAssembly..... 2-3 2Omm AC Ammunitionfor Guns Ml 11 and Mk 12, ProjectileAssembly..... 2-4 PropellingChargeAssembly for 2OmmAC Anmnmition.. 2-5 20mm AC lkmmy Ammunition, ProjectileAssembly..... 2-5 40mm AA Ammunitionfor Guns Mk 1, Projectile Assembly................ 2-6 PropellingChargeAssembly for 401mn AA Ammunition.. 2-7 40mm Dummy Ammunition, ProjectileAssembly..... 2-7 3"/50Ammunitionfor Guns Mk 21 and Mk 22, Projectile Assembly........... 2-8 PropellingChargeAssembly for 3"/50Annmmition.... 2-10 3"/50 Dummy Ammunition, ProjectileAssembly..... 2-11 5"/38Ammunitionfor Guns Mk 12, Projectile Assembly................ 2-12 PropellingChargeAssembly for !?/38Ammunition.... 2-19 St'/38 Dummy Ammunition, ProjectileAssembly..... 2-19 5"/54Ammunitionfor Guns Mk 16 and Mk 18, Projectile Assembly........... 2-20 PropellingChargeAssembly for St/54Ammunition.... 2-22

Table

Page

2-18 5"/54Dummy Ammunition, ProjectileAssembly ..... 2-22 2-19 6"/47Ammunitionfor Guns Mk 16 (SP),Projectile Assembly ................ 2-23 2-20 PropellingChargeAssembly for 6"/47Ammunition (SinglePurposeGuns) ... 2-24 2-21 6"/47Ammunitionfor Guns Mk 16 (DP),Projectile Assembly .......e........2-25 2-22 PropellingChargeAssembly for 6"/47 Ammunition (DualPurposeGuns) ..... 2-26 2-23 6"/47 Iknnmy Ammunitionfor Guns Mk 12, Mk 14, Mk 15, and Mk 16 ............... 2-26 2-24 8"/55Ammunitionfor Guns Mk 12, Mk 14, and Mk 15, ProjectileAssembly ..... 2-27 2-25 PropellingChargeAssembly for Sl'/SS Ammunition (BaggedGuns) ........... 2-28 2-26 8"/55Dummy Ammunitionfor Guns Mk 12, Mk 14, and Mk 15, ProjectileAssembly . 2-28 2-27 8"/55Ammunitionfor Guns Mk 16, Projectile Assembly................ 2-29 2-28 PropellingChargeAssembly for 8"/55Ammunition (CaseGuns) ............. 2-30 2-29 Sfr/55 Dummy Armmrnition for Guns Mk 16, Projectile Assembly................ 2-30 2-30 16"/45Ammunitionfor Guns Mk 6 and Mk 8, ProjectileAssembly..... 2-31 2-31 PropellingChargeAssembly for 16"/45Ammunition... 2-32 xi

NAVORDOP 2215 VOLUME 1 SECONDREVISION

-LIST OF TABLES (Continued) Page

Table 2-32 16"/45Dummy Ammunition for Guns Mk 6 andMk 8, ProjectileAssembly..... 2-33 16"/50Ammunitionfor Guns Mk 7, Projectile Assembly................ 2-34 PropellingChargeAssembly for 16"/50Anmnmition... 2-35 16"/50IXmuny Ammunition for Guns Mk 7, Projectile Assembly........... 2-36 RocketAssisted Projectile(RAP) ........ 3-l 3-2 3-3 3-4 3-5 3-6 3-7 3-8 3-9

2-32 2-33

Table 9-1 9-2 9-3 9-4 9-5 9-6

2-34

9-7 9-8

2-34

9-9 9-10

2-36

MechanicalTime Fuzes ,....3-3 Point DetonatingFuzes .... 3-37 Base DetonatingFuzes ..... 3-51 AuxiliaryDetonating Fuzes ................... 3-69 Proximity(VariableTime Radio Frequency)Fuzes .. 3-87 Proximity(VariableTime Infra-Red)Fuzes ........ 3-103 ControlledVariableTime (CVT)Fuzes ............. 3-111 CV'TFuze and Adapter Assemblies.............. 3-115 Fuze Boosters............. 3-123

9-11 9-12 9-13 9-14 9-15 9-16 9-17 9-18 9-19 9-20 9-21 10-l

4-l 4-2 4-3 4-4 4-5 4-6

Case ElectricPrimers ..... Case PercussionPrimers ... Case CombinationPrimers .. Case CombinationIgnition Primers ................. Lock CombinationPrimers .. Case ElectricTest Primers.................

4-3 4-2.5 4-39

10-2

4-45 4-49

10-3

4-51 10-4

5-l

Tracers ................... 5-2

6-l

CartridgeCases ........... 6-2

7-l 7-2 7-3

Short Charges ............. 7-2 SalutingCharges .......... 7-3 ImpulseCharges ...*...*..*7-4

8-1 8-2 8-3

AmmunitionBoxes .......... 8-2 CartridgeTanks ........... 8-4 PowderTanks .............. 8-6

10-5 10-6 10-7

xii

Page ProjectileAdapters ....... 9-2 TracerAdapters ........... 9-3 Smoke Canisters........... 9-3 WaterproofProtectingCaps. 9-3 Color BurstUnits ......... 9-4 DistancePieces for Full and ReducedCharges ..... 9-4 Fuze Gas Checks .......... 9-5 ProjectileBase Plug Gas Checks ............. 9-5 Base Plug Gaskets ........ 9-6 RotatingBand Protecting Grommets ............... 9-7 Fuze Cavity Liners ....... 9-7 Chaff (Window)Loads ..... 9-8 Illuminating Loads ....... 9-8 Base Fuze Hole Plugs ..... 9-9 Dummy Nose Plugs ......... 9-9 Nose ShippingPlugs ...... 9-10 PropellingChargePlugs .. 9-10 Plugs for Short or SalutingCharges ....... 9-12 TracerHole Plugs ........ 9-12 Wads for Propelling Charge ................. 9-13 Wads for Short and SalutingCharges ....... 9-13 3"/70 ObsolescentAssemblies for Guns Mk 26 ... 10-2 PropellingChargesand ShippingComponents for Obsolescent3"/70 Ammunition............. 10-2 5"/25 Obsolescent Assembliesfor Guns Mk 17 .....I............ 10-3 PropellingChargesand ShippingComponentsfor Obsolescent5"/25 Ammunition"............ 10-5 5"/25Obsolescent Dummy Ammunition....... 10-S 12"/50ObsoleteAssemblies for Guns Mk 8 .......... 10-6 PropellingChargesand ShippingComponents for 12"/50Obsolete Assemblies,............ 10-7

NAVORDOP 2215 VOLUME 1 SECONDREVISION LIST OF TABLES (Continued) Table 12"/50ObsoleteDtmmy Ammuntion.............. 10-9 14"/45ObsoleteAssembly for Guns Mk 12 ......... lo-10 PropellingChargesand ShippingComponents for 14"/45Obsolete Assemblies............. lo-11 14"500ObsoleteAssembly for Guns Mk 11 .........

Page

10-8

10-7 10-8

Table

Page

lo-12 PropellingChargesand ShippingComponentsfor 14"/50Obsolete Assemblies............. lo-11 lo-13 14" ObsoleteDmny Ammunition............. lo-11

10-9 C-l lo-10

CVT Fuze Functionsfor Various Settings....... C-32

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xiii

NAVORDOP 2215VOLUME 1 SECONDREVISION

--

s.fmTYSWY

The followinginformation pertainsto safetybut does not appearelsewherein this publication. REPORTSOF ACCIDENTS,INCIDENTS,AND UNSATISFACTORY PERFORMANCEOF AMMUNITION Occurrencesof accidents,incidents,and unsatisfactory performanceof all non-nuclearexplosiveordnanceand materialshallbe reportedin accordancewith NAVORDINST8025.lA. UNSERVICEABLE, SUSPENDED,AND LIMITED-USEWITION For information pertainingto the degreeof serviceability of ammunitionand ammunitioncomponentsused by the Navy,Marine Corps, and CoastGuard,refer to NAVORDOD 17190. It containsa listingof items,usuallyby lot number,which are not suitablefor unrestricteduse in the manner for which they were designed. In caseswhere it has been determinedthat an ammunitionitemmay endanger life or property,rapid promulgationof the informationis accomplished by a messageNAR (Noticeof AmmunitionReclassification).(NARsare incorporatedin OD 17190 as changesto that publicationare made.) Immediately upon receiptof any changein the statusof ammunition,all commandsshalldeterminewhether stockson hand includeany of the affectedlots or types. Action shallbe taken to insurethat the use or issue of the affectedammunitionis consistent with the newly assignedclassification.

The followinginformationappearsin AppendixF of this publicationand is repeatedhere for emphasis. FLEET INSPECTIONOF PROJECTILEGAS CHECK SEALS SUBSEQUENI' TO IS,SUE Fleetusers shall check for damage to GCS (gas check seals)which may have occurredduringhandling,transportation, and storagesubsequentto issueby an ammunitionactivity. Assure that: 1. GCS is not missing. GCS is free of cuts, tears,or gougeswhich exposethe lead core. 2. 3. GCS is flushwith or below base fuze or plug surface. Ammunitionwith any of the above defectsshouldbe marked as defectiveand should be turnedin at the soonestopportunity.A messagereport shouldbe made to COMNAVORD,with copies to the Naval WeaponsStation (QEL),Concord,California, xiv

N/WORD OP 2215VOLUME 1 SECONDREVISION

- .n.

SAFETYSUMARY (Continued) and the Naval AmmunitionProductionEngineeringCenter (NAPEC),Crane, Indiana, givingammunitionlot identification, nature of defect,and any backgroundinformation on the cause,if available. --

=== \

Inasmuchas certainFleet units handlepalletizedammunition,they are not expectedto de-palletizeand inspectGCS in accordancewith the above instructions. The use of NAPEC GCS DisplayKits for shipboardinspectionof munition is not appropriate.Shipboardremovalof paint from projectilesis not authorized. (PageF-8) For criteriato be used when installingGCS or for pre-1970 (uninspected, unsuffixed)loadedammunition,refer to AppendixF of this publication.

--

The followingMARNINGSand WITIONS are repeatedfrom the text of this publicationfor the protectionof personnel. WARNINGS VT Non-Fragprojectilesare for targetand trainingpurposes and have a combinationblack powder and pyrotechniccolorburst element. Reducedchargesmay be used. (Pagel-3) Before firingCVT-fuzedprojectilesover friendlyforces,check the time settingon these fuzes. The estimatedtime-to-target must be accuratelydeterminedand the fuzes set to this time to preventpossibleVT airburstsfrom occurringabove the deployed 3-113,and C-33) friendlyforces. (Pages2-38, 2-40, 3-1.08, Settingsfor PD functioningonly on the PD mark of CVT fuze and adapterassembliesare not recommended.An inaccuratePD settingwill not guaranteethat the proximitycircuitswill remaininactive(unarmed)after the round is fired. For PD functioningonly, set the fuze to 95 secondsto achievepositive PD action. At this settingof 95 seconds,the proximity circuitswill not become armed for at least 92 secondsand the roundwill be safe for firingover friendlytroops for this time. (Pages2-38, 2-41, 3-109,3-113, and C-33) Duringhandlingof RAP, a drop in excessof 24 incheson the base of.the projectilein which a deck pin, (rivethead) bolt, or miscellaneous objectstrikesthe centerhole of the igniter, sufficientstrikingenergycould be providedto actuatethe igniter. In this event, ignitionof the rocketmotor may be delayed20 to 30 seconds. All personnelshould immediately evacuatethe area. Do not attemptdisposalprior to rocket motor ignition. If rocketmotor burns in a closedcompartment, insurethat the area is clear of fumesprior to re-entry. Disposeof the projectilein accordancewith standardEoD procedure. (Page2-39) xv

N/WORDOP 2215VOLUME 1 SECONDREVISION SAFETYSUMMARY (Continued) WRNINGS MTF Mk 61Mcd 0 is used at full and reducedcharge in 5"/38 ILLUM and WP projectiles. It shouldnot be used at full or reducedchargein 5"/38HE projectiles.MTF Mk 61 Mod 1 is used at full or reducedchargein 5"/38HE, WP, or ILLUM projectiles. (Page3-17) The Mk 27 PDF is not bore safe. (Page3-37) The Mk 29 Mods 2 and 3 PDFs shouldnot be fired in heavy rain except in combatemergencyconditions.Early bursts will occur. The Mk 29 Mod 5 PDF shouldbe used. (Pages 3-39 and C-12) The Mk 30 Mods 2 and 3 PD fuzes shouldnot be fired in heavy rain except in combatemergencyconditions. Early burstswill occur. The Mk 30 Mod 5 PDF shouldbe used. (Pages3-43 and C-12) The Mk 66 Mod 0 PD fuze shouldnot be fired in heavy rain except in combatemergencyconditions. Early burstswill occur. Mk 66 Mod 1 PDF shouldbe used. (Pages3-47 and C-12) 5"/54 chargesassembledwith combinationPrimerMk 13 are slow-firechargesonly. These charges,NALC D309 and D310, shall not be used in rapid fire guns becausethe Mk 13 Primercan be initiatedby the shock of rammingforces. (Pages7-2 and E-4) In a worn gun, bore enlargementat the originwill prevent the projectilefrom being fully seatedwhen rammed. This will result in'rapidrun-up and may damage the ogive of the nose fuze. This conditionmay cause early detonation of the projectile. (PageC-3) A projectilefoundwithouta tracerand the tracerhole open (notplugged)is almostcertainto result in early projectileburst when fired in a gun. (PageC-16) The chargedesignationnumber is used to selecta charge for a specificrange for a particulardepth charge. These impulsechargesmust be used only as specifiedto prevent injuryto personnelor equipment. (PageE-9) xvi

N/WORDOP 2215 VOLUME 1 SECONDREVISION SAFETYSUMMARY (Continued) CAUTIONS - a+-\ .-

Extremecautionmust be used in firingoperationsfor RAP. Insurethe correctidentification of RAP projectilesin view of the similarityof projectileappearanceand the dissimilarity of impactpoints of RAP comparedto standard projectiles. (Page2-37) CVT fuzesmust be set to 35 secondsor more when used in S-inchRAP. If fired at settingsless than 35 seconds, the fuzesmay functionearly as a resultof rocketmotor effectson the fuze. (Pages 2-38, 2-40, 3-108,and 3-113) When settingthe MechanicalTime and SuperquickFuze M564 do not turn the lower cap back (counterclockwise) if desired settingis passed. Continueto turn in the clockwisedirection past the "0" setting. Turningthe cap back will render the fuze unserviceable. (Pages3-30 and 3-31)

-

When settingthe MechanicalTime and SuperquickFuze MS64 the Vernierscale is not to be utilizedas incorrectusage in the past has resultedin gross timingerrors. If necessary, fractional-second settingsshouldbe achievedby aligningthe "0" mark betweenthe desiredwhole-secondgraduations(refer to figure3-18B). (Pages3-30 and 3-31) The followingappliesto Mk 29, Mk 30, and Mk 66 Point DetonatingFuzes. In no case shouldfuze settingscrews be force&clockwisethroughthe 3 o'clock (12 o'clockin the case of the Mod 5 of Mk 29 and Mk 30, or Mod 1 of Mk 66) stop or counterclockwise. A good rule for the initialsettingfrom OFF to ON is never to turn the setting screw throughan arc greaterthan 90'. For fuzes incorrectlyset to a positionbeyond 12 o'clockor for those being returnedto stowage,a counterclockwise rotation back to the 12 o'clockON positionor back to the 9 o'clock (approximate) OFF position,respectively, is authorized. (Pages3-41, 3-45, and 3-47) A thin wax coating (tan in color)is appliedat the factory to the VT-IR Fuze Mk 92 windowmountedon the end of the fuze nose. This wax coatingprovidesprotectionfrom the depositionof residuefrom blow-bygases duringfiringof the 3"/50 round and must not be removed. (Pages3-107 and 3-108) --

xvii

NAVORD OP 2215 VOLUME 1 SECONDREVISION SAFETYSUIWARY (Continued) CAUTION For reasonsof safety,black powdersother than SNRP (such as Class 2, Class 6, or black spherohexagonal) mt not be used in torpedoimpulsecharges. These powdersproduce dangerouspressuresin centerline tubeswhen weight of chargeis sufficientto cause the torpedoto clear the side of the ship. The small granulationsize of Class 2 and Class 6 powders,when ignited,developsa sufficiently high pressureto cause the ruptureof an expansionchamber, which is designedfor the considerablylowerpressure generatedby sodiumnitrateblack powder (SNBP). (PageE-8)

xviii

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NAVORD OP 2215VOLUME 1 SECOND REVISION

CHAPTER1 INTRODUCTION

l-l

--

--.

SCOPE AND PURPOSE

l-2 COVERAGE. This publicationcovers Navy gun-typeammunitionused in guns largerthan caliber .60, exceptthat procuredfrom the Army for use by Naval Units ashore. It includessome items closelyassociatedwith gun ammunition, but does not includefire controlsystem, guns, and handlingequipmentwhich are not part of the ammunitionitems. l-3 This manual coversNavy gun-type ammunitionin sizes 2Omm, 4Omn, 3”/50, 5”/38,5”/54,6”/47,8”/55,16”/45,and 16”/50. It also coverscertainobsolete and obsolescentassembliesand items in other sizes. Componentitems of the abovenamed sizes coveredincludeexplosives,projectiles,fuzes,primers, tracers,and propellingcharges. Miscellaneouscomponents,detailparts, ammunition boxes,-cartridgetanks;powderbag tanks,and fuze and primer cans are also covered. ion 1-4 INTENDEDUSES. This publicat will be used by all Naval personnel engagedin the preparation, handling, and tacticaluse of Navy gun-type ammunition. 1-5

is containedin appendicesat the back of the book. l-7

HOW TO USE THE MANUAL

l-8 Informationabout a specific subjectpertainingto Navy gun-type ammunitionmay be locatedby looki.ng in the Table of Contentsor in the List of Tables in the front portionof this manual. 1-9 Subjectmatter itselfis arranged in easy-to-locateform by size, gun, Mark (Mk) and Mod number,and appl.ication. When specificdata is not available, the applicablespace in the table is marked ‘VA.” l-10 CLASSIFICATION OF GUN AJ&llJNITION l-11 CLASSIFICATION BY SIZE OF GUN. Gun munition is most commonlycl.assified by the size of the gun in whi.chit is used. In additionto designati.ons of bore diameter,such as 2Omn, 3-inch, or 16-inch,the lengthof the gun bore in calibersis also used as a means of classif ication. Thus a 3”/50projectile is one used in a gun having a bore diameter of 3 inchesand a bore lengthof 50 times 3 inches,or 150 inches.

ARRANGEMENTOF MATERIAL

l-6 Specificinformationconcerning ammunitionassemblies,fuzes,primers, tracers,cartridgecases,special miscelcharges,ammunitioncontainers, laneouscomponents,and obsoleteor obsolescentit.ems is presentedin separatechapters,primarilyin tabular form. Generalor backgroundinformation

1-12 CLASSIFICATION BY ASSEMBLY. The ammunitionfor the differenttype guns used by the Navy may be loadedas an assemblyor as severalunits. See figure l-1. 1-13 Case Amrmnition. This class embracesevery type of ammunitionthat uses a cartridgecase to containits l-l

NAVORDOP 2215VOLUME 1 SECONDREVISION

--

PROJECTILE

PRIMER R

--

Figure l-l. Types of Gun Amnunition: Fixed (top);Separated(center); and Separate-Loading (BaggedGun)(bottom) 1-2

-

NAVORDOP 2215 VOLWE 1 SECONDREVISION propellantcharge. Case ammunition includesfixed and separatedammunition.

- /-\

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1-14 Fixed Ammunition. This class appliesto -nition which has the cartridgecase crimpedaround the base of the projectile. The primer is assembledin the cartridgecase. The projectileand the cartridgecase containingthe primer and propellantcharge all form one unit as a fixed round of ammunition. &all caliberguns and guns through5”/25 caliberuse fixed amnunition. 1-15 SeparatedAmmunition. This class appliesto ammunitionwhich consistsof two units: the projectileassemblyand cartridgecase assembly. The projectile assemblyconsistsof the projectilebody containingthe load,nose fuze, base fuze, and auxiliarydetonatingfuze, as applicable. The cartridgecase assembly consistsof the cartridgecase, primer, propellantcharge,wad, distancepiece, and a plug to close the open end of the cartridgecase. Separatedammunitionis producedin gun sizes of 5”/38 through 6”/47 caliberand for some g-inchguns.

VT NON-FRAGprojectilesare for targetand trainingpurposesand have a combinationblack powder and pyrotechniccolor burst element. Reducedchargesmay be used. 1-19 Targetand TrainingAmmunition. This class appliesto ammunitionused for firingpracticeand trainingpurposes. These inert-loaded projectiles are comparablein weight and configuration to those of serviceammunition. l-20 Dunmy Drill Ammunition. Thi.s class appliesto any type of amnunition assembledwithoutexplosives,or with inertmaterialsubstitutedfor explosives,to imitateserviceammunition. This class of ammunitionis used in trainingof personnel,or testing equipment. It is normallyidentified as dummy cartridges,dwrrmycharges,or dmy projectiles . 1-21 PRIWRY COMPONENTSOF AWIUNITION --l-22 The primarycomponentsof Navy gun-typeammunitionare as follows.

_?_ __

-

l-16 SeparateLoading (BaggedGun) Ammunition. This class appliesto some g-inchgun sizes and to ,a11gun sizes largerthan 8 inches. This class does not containa cartridgecase; the propellantcharge is loadedin silk bags which are consumedduring the combustion of the propellantwhen fired from the gun* The projectile,propellantcharge, and primer are loadedseparately.

-

1-17 CLASSIFICATION BY SERVICEUSE. For economyand for safety,gun ammunition is assembledand classifiedaccording to the intendeduse as follows.

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1-18 Service,mition. This class used in combat. appliesto -ition The projectilescontainexplosive, chaff,or chemicalloads. illuminating, Full propellantchargesare used.

1-23 EXPLOSIVES. Explosiveshave extremelyrapid rates of reaction, hence they are said to detonate. In gun ammunitionhigh explosivesare used as initiators,boosters,and bursting chargesof projectiles.At one time explosiveswere commonlydividedinto two categories,designated“high explosives” and “low explosives.”High explosiveswere those which couldbe made to detonate. Low explosiveswere those which could be made to detonate only by applicationsof very strong shocks and whose use dependedon some other characteristics usuallythat of burstingin a rapid, controllable, and reproducible manner. This classification is no longerused in connection with strictlymilitaryapplications. In militaryapplicationthe term “high explosive”is stillused but with a somewhatdifferentmeaning. Many of l-3

NAVORD OP 2215VOLU!E 1 SECONDREVISION

--

-

the so-calledlow explosivesare now calledpropellants. See AppendixB for furtherdescriptionand generalinforma tion.

l-31 GAS CHECKS. Gas checks are copper ringswith lead cores. These are assembled under pressurearoundthe base fuze,base plug, and/orbase fuze hole plug to preventthe propellantgases l-24 PROJECTILE. The projectileis from enteringthe projectile. For that componentof ammunitionwhich,when informationconcerningshipboardinspecfired from a gun or launcher,carries tion of gas check seals,refer to the out the tacticalpurposeof the weapon SafetySummaryof this publicationor such as piercingarmor,detonatingon to AppendixF. Criteriato be followed impact,or at a predetermined time after when installinggas check seals or for firingto causedamage to the target. pre-1970 (uninspected, unsuffixed) Projectilesalso are used to illuminate loadedammunitionare also providedin targetsat night, or producea chemical AppendixF. or smoke serviceas needed. See Appendix B for furtherdescriptionand 1-32 TRACERWASHERS. Lead washersare generalinformation. placedbetweenthe shoulderon the tracerbody and the corresponding 1-25 FUZE. The fuze is designedto seatingsurfacein the base fuze of initiatethe payloadof a projectile. the projectile. Thesewashersprevent The differenttypes of fuzes include gases from affectingthe base fuze or mechanical,proximity,and impact (nose explosivefiller. or base). See AppendixC for further descriptionand generalinformation. l-33 ADAPTERS. Adaptersare used with projectilesto join auxiliarydetonator l-26 PRIMER. The primer is a small and nose fuzes. They are also used to tube of sensitiveexplosivewhich connectthe nose fuze to the projectile. initiatesthe propellantcharge. See AppendixD for furtherdescriptionand 1-34 PLASTICAND CORK PLUGS. Plugs are generalinformation. used in the mouth of cartridgecases in the assemblyof propellantcharges. 1-27 TRACER. The traceris a device They seal the end of the cartridgecase and act as a bufferwhen the case is which leavesa trail of flame or smoke to show the trajectoryof a projectile rammed into the gun againstthe projecSee AppendixD for furtherdescription tile. and generalinformation. l-35 WAD. Thi.sis a cardboardor 1-28 PROPELLINGCHARGES. Propelling pyralindisk which is forcedinto the cartridgecase on top of the propellant chargesare mixturesof explosives designedto propelprojectiles,rockets, powder to retain the powder in position. Pyralinwads are usuallyused in special guidedmissiles,depth chargesand charges ; such as saluting,torpedo,and torpedoesfrom guns and launchersto singledepth chargeprojectors. When the target. Includedin these charges are cartridges,bag charges,and special the pyralinwad is used, it is cemented in position. charges. See AppendixE for further descriptionand generalinformation. 1-36 DISTANCEPIECE. This is a rectangularpiece of cardboardfoldedinto a l-29 MISCELLANEOUSCOMPONENTS triangularshape. It is used in the l-30 Miscellaneouscomponentsare those cavityof the cartridgecase and is insertedbetweenthe wad and the plug which are used in the assemblyof guntype ammunitionbut not coveredin other to act as a supportbetweenthe wad and categoriesassignedin this manual. They plug in separateloadedammunition. In fixed ammunitionthe distancepiece is are illustratedin figure1-2. l-4

-

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NAVORDOP 2215 VOLUME 1 SECONDREVISION

Figure 1-2. MiscellaneousGun AmmunitionComponentsand Details

l-5

NAVORDOP 2215VOLUME 1 SECONDREVISION insertedbetweenthe wad and the base of the projectile. l-37 LEAD FOIL. A piece of lead foil is placed insidethe distancepiece, when required,to preventthe deposit of copperfram the projectilerotating band in the bore of the gun. It is alsoused in bag chargeammunition for the same purpose. l-38 FIJZECAVITY LINER. This is a thin metal linerwhich is insertedin the fuze cavityof the projectile. It is used for VT fuze applications. l-39 HANDLINGAND SHIPPINGPARTS l-40 Handlingand shippingparts are itemswhich are used to protector provide supportduringhandling,shipping, and storageof gun ammunition. These itemswhich are consideredserviceable are usuallyreturnedto an ammunition depot. They shall be packed in the prescribedrranner and contents identified.

removedby tear strips)on ST’/25 mediumcaliberfixed rounds. The caps are installedat the depot and are removed just prior to the time the projectiles are loadedinto the hoists aboardship. l-44 PROJECTILEAND CARTRIDGENOSE SUPPORTS. These are placed in a cartridgetank for fixed amnunition to supportthe projectileand prevent movement. They are lightweighttubes with flangesfor positioning. 1-45 GROWETS. These are rectangular pieces of heavy fiber,canvas,or leatherprovidedwith laces or other means for securingto the rotatingbands of projectiles.Grommetsprotectthe copperrotatingbands duringhandling and storageof 6-inchthrough16-inch projectiles.

l-46 AMMUNITIONDATA CARDS. Ammunition data cards are preparedfor each amnunition lot producedor renovated. The informationon the data card is used by ammunitiondepots and by using activities. Data cards are suppliedwith 1-41 SPACERS. Spacersare made of cork, each shipmentof ammunitionand are placed insidethe protectingcap cardboard,or wood in various thicknesses usual.ly for projectiles,insidecartridgetanks, and are placed insidethe ends of cartridgetanksand powder tanks to prevent and insidebag-chargetanks and ammunition shippingboxes, as applicable. longitudinal movementof the cartridge case or pohnler bag. 1-47 AMMUNITIONCONTAINERS l-42 CARTRIDGEEXTRACTORS. These are l-48 The projectilesfor separatedand lightmetal cups shapedto fit the base bagged gun ammunitionare not shippedin end of cartridgecases. They have a containers. Their parts which are most handle or a sash cord to facilitate susceptibleto damage--nosefuzes and removalof the cartridgecase from the rotatingbands-are protected,respeccartridgetank. The extractorprotects the primer in additionto providinga tively,by caps and grommets. Cartridgesfor separatedammunition,bag means of removingthe case from the charges,fixed ammunition,and some tank. nose fuzes are shippedand storedin containers. Cartridgesfor separated 1-43 WTERPROOFING PROTECTINGCAPS. These are metal caps threadedinternally anmunitionand baggedchargesare packagedindividually in tanks;smallto fit mating threadson the exteriorof caliberfixed ammunitionis shipped the nose of the projectile. The cap collectivelyin boxes. helps protecta nose fuze from damage by moistureor by shock in handling. l-49 Separatecomponents,such as some These caps are attachedby threadto nose fuzes and primersfor bag gun separatedand separate-loaded projecloads,are shippedindividually in tiles;they are solderedlightly(and l-6

NAVORD OP 2215VOW 1 SECONDRFWISION

Pigure l-3. TypicalBox-TypeContainers: 2Omn Cartridges (Left)and 4Omm Cartridges(Right) hermetically sealedcans, a numberof such cans being placed in a wood box.

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l-50 All gun