d18a - Under Keel Clearance Calculation r5

M 32

EXECUTIVE SHIP MANAGEMENT

D 18A Page 1 of 3 (5/13 Rev 5)

UNDER KEEL CLEARANCE (UKC) CALCULATION (To be filed along with Passage Plan D29) Vessel Name:

UACC FALCON

Dock Water Density:

1.025

Date of report:

06/06/2013

LOME

Salt Water Density:

1.025

Date of Transit:

08/06/2013

FWA (in m):

0.332

Port: Arrival / Departure:

ARRIVAL

A. Vessel Characteristics a. Draft 1

b. Vessel Speed and Squat Mean draft of the vessel : 0.00

mtrs; draft corrected (+/-):

2

Trim:

3 4

Max. draft of vessel (a1 + a2): Max. midship draft after Hog/Sag correction: (Refer Table 2 on last page of this form)

5

Gross UKC required in Port Approaches ([10% of max. draft (Aa3 or Aa4 whichever is greater)] :

6

List:

7

Beam:

0.0 32.26

13.40

mtrs

1

Speed of transit:

10.00

knots

0.00

mtrs

2

Squat for confined waters:

1.68

mtrs

13.40

mtrs

3

Squat for open waters:

0.84

mtrs

13.40

mtrs

1.340

mtrs

deg. (port/starboard) mtrs

c. Tide

d. Net UKC Requirement

1

Anticipated tidal current ( from tide table):

2

Anticipated tide ( from tide tables):

Dir. x Rate

1 2

3 Port: Date 6/8/2013

LOME Time 4:08

6/8/2013 6/8/2013 6/8/2013

9:28 15:34 22:08

Height (in mtrs) 1.6 0.9 1.8 0.4

4 5

1.5% of Beam of the vessel: Net UKC required in port approaches / at berth (0.3m or 1.5% of vessel beam, whichever is greater): Net UKC required when underway in Coastal waters: Net UKC required when in Deep Sea: Net UKC required at anchorage / STS / SBM:

0.48

mtrs

0.48

mtrs

2.00 5.00 2.00

mtrs mtrs mtrs

M 32

EXECUTIVE SHIP MANAGEMENT

D 18A Page 2 of 3 (5/13 Rev 5)

B. Calculations and Verification of compliance with Company’s UKC policy Channel

Port Anchorage/STS Without Cargo With Cargo Operation Operation

SBM

Berth

NA

NA

At Sea Coastal Passage Ocean Passage

Date & Time a. Gross UKC Calculations: 1

Least charted depth in meters (from chart):

2

Tide at the time of transit in meters (from Ac2)

0

0.00

0

0

0

0

0

3

Total depth available in meters

0.00

33.00

33.00

0.00

0.00

33.00

50.00

4

Max. draft of the vessel in meters (from Aa3 or Aa4 whichever is greater)

13.40

13.40

13.40

13.40

13.40

13.40

13.40

5

Gross UKC available in meters (Ba3-Ba4)

-13.40

19.60

19.60

-13.40

-13.40

19.60

36.60

6

Gross UKC required in meters (Bb7+Bc4 or Aa5 whichever is greater)

1.34

2.50

5.00

2.50

1.34

3.34

6.34

7

Condition acceptability (Yes/ No)

NO

YES

YES

NO

NO

YES

YES

8

Company’s approval required (Yes/ No)

YES

NO

NO

YES

YES

NO

NO

NA

0

0

NA

NA

0.84

0.84

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.2

0.5

0.5

0.5

0.5

0.5

0.5

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0.20

0.50

0.50

0.50

0.50

1.34

1.34

b. Draft/ Depth Allowances Calculations: 1 Squat allowances in meters (Refer Squat table)

2

Density allowance in meters

3

Sea state allowance in meters (Refer Table 1 on last page of this form)

4

33.00

50.00

Other allowances in meters (1. Storm/Negative surges: Refer Annual Summary of Notices to Mariners-Notice No.15 2. Barometric Pressure/ Wind Effect/Sea bed allowance: Refer Mariner's Handbook & Tide Table introductory pages.)

7

33.00

Seasonal Height Variation *(Information provided at the end of respective Tide Table)

6

33.00

Allowance for heel correction (1% of Beam = Increase of draft due to 1 deg of list/heel)

5

NA

Total allowances in meters (Bb1+Bb2+Bb3+Bb4+Bb5+Bb6)

M 32

EXECUTIVE SHIP MANAGEMENT

c. Net UKC Calculations: 1 Gross UKC available in meters (Ba5) 2 Total allowances in meters (Bb7) 3

Net UKC available in meters (Bc1 – Bc2)

4 5 6

Net UKC required (from Ad) Condition acceptability (Yes/ No) Company’s Approval required (Yes/ No)

-13.40

19.60

19.60

-13.40

-13.40

19.60

36.60

0.20

0.50

0.50

0.50

0.50

1.34

1.34

-13.60 0.48 NO YES

19.10 2.00 YES NO

19.10 2.00 YES NO

-13.90 2.00 NO YES

-13.90 0.48 NO YES

18.26 2.00 YES NO

35.26 5.00 YES NO

Legends: * =The corrections should not be entered for UKC if it has been already accounted for when calculating Ht of Tide

Second Officer

D 18A Page 3 of 3 (5/13 Rev 5)

Master

B. Calculations and Verification of compliance with Company’s UKC policy Channel a. Gross UKC Calculations: 1 Least charted depth in meters (from chart): 2 Tide in meters (from Ac2) 3 Total depth available in meters 4 Max. draft of the vessel in meters (from Aa4) 5 Gross UKC available in meters (Ba3-Ba4) 6 Gross UKC required in meters [(from Aa5) or (Bb5+Bc4)] 7 Condition acceptability (Yes/ No) 8 Company’s approval required (Yes/ No) b. Draft/ Depth Allowances Calculations: 1 Squat allowances in meters 2 Density allowance in meters 3 Sea state allowance in meters 4 Other allowances in meters 5 Total allowances in meters (Ba1+Ba2+Ba3+Ba4) c. Net UKC Calculations: 1 Gross UKC available in meters (Ba5) 2 Total Draft/ Depth allowance in meters(Bb5) 3 Net UKC available in meters (Bc1 – Bc2) 4 Net UKC required (from Ad) 5 Condition acceptability (Yes/ No) 6 Company’s Approval required (Yes/ No)

Port Anchorage SBM

Berth

At Sea Coastal Passage

policy At Sea Ocean Passage

2.00 5.00 2.00

mtrs mtrs mtrs