Appendix B – Suggested Surveyor Summary Evaluation Form
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.616 – Evaluation of Free-Fall Lifeboat Launch Performance – (22 June 1993) - Annex – Evaluation of Free-Fall Lifeboat Launch Performance - Appendix B – Suggested Surveyor Summary Evaluation Form

Appendix B – Suggested Surveyor Summary Evaluation Form

Free-Fall Lifeboat Prototype Tests
Resolution A.689(17) Lifeboat Test Acceptability Criteria Results and Observations Pass
  Weigh the Fully Equipped Lifeboat Without Persons on Board Expected Weight: ___________ Measured Weight: ___________  
6.4.7 to 6.4.9 Free-Fall Lifeboat Overload Test The fully loaded and equipped lifeboat should have sufficient strength to withstand a free-fall launch from a height of 1.3 times the free-fall certification height. There should be no significant damage to the lifeboat as a result of this test and it should pass the engine operation test in 6.11.1. Free-Fall Height = _______
Weight = _________
Condition After Launch
Engine Operation (6.11.1) 		 
6.6 Free-Fall Lifeboat Free-Fall Test The fully equipped lifeboat should make positive headway and the acceleration forces measured at the location of worst occupant exposure should satisfy the requirements of 6.18 during launches from the free-fall certification height with the following occupant loads:
1. Fully Loaded Lifeboat .
2. Occupants Forward of CG only
3. Occupants Aft of CG only
4. Launching Crew Only 		Free-Fall Height
Drop 1 = ____________
Drop 2 = ____________
Drop 3 = ____________
Drop 4 = ____________
Results of Acceleration Force Measurements: 		 
6.7.2 Lifeboat Seating Strength Test (Conducted With Overload Test) The seats experiencing the highest acceleration forces should be able to support a 100 kg mass when the lifeboat is launched from a height of 1.3 times the free-fall certification height.    
6.8 Lifeboat Seating Space Test The number of persons, all wearing lifejackets, for which the lifeboat is to be certified should be able to board the fully equipped lifeboat, be seated, and be ready for launch in not more than three minutes. The lifeboat should then be manoeuvered to demonstrate that there is not interference with the occupants. Also, walkways within the lifeboat should have a non-slip surface. Seat Pitch: ____________
Seat Height: ____________
Seat Width: ____________
Boarding Time: ____________ 		 
6.9.1
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6.9.3 		Lifeboat Flooded Stability Test The fully equipped and loaded lifeboat should have positive stability when filled with water to represent the flooding that can occur when the lifeboat is holed i at the worst location below the water surface.    
6.9.4
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6.9.5 		Lifeboat Freeboard Test The fully equipped lifeboat, loaded with 50% of the persons for which the lifeboat is to be certified seated on one side, should have a freeboard of not less than 100 mm nor less than 1.5% of the lifeboat's length. 0.015 x Length = ____________
Required Freeboard = ____________
Measured Freeboard = ____________ 		 
6.10.5 Operational Overload of Release Mechanism The free-fall release mechanism should operate effectively when loaded with a force of at least 200% of the normal load caused by the fully equipped and loaded lifeboat. Required Working Load = ____________
[Sin(Launch Angle) x Weight]
Required Test Force: ____________
[2 x Working Load]
Measured Force: ____________ 		 
6.10.6 Ultimate Strength of Release Mechanism. The free-fall release mechanism should be able to withstand a force of at least 6 times the working load of the hook without failure. Working Load: ____________
6 x Working Load: ____________
Measured Force: ____________ 		 
6.11.1 Engine Operation and Fuel Consumption The fully loaded and equipped lifeboat should be operated for 4 hours, be capable of a speed of 6 knots, and be able to tow a 25 person liferaft at a speed of 2 knots. Test Duration: ____________
Speed: ____________
Fuel Consumption: ____________
Calculated Endurance: ____________
Towing Force: ___________ 		 
6.11.5 Engine Out of Water Test The engine should not be damaged when operated for 5 minutes in conditions simulating normal storage. Test Duration: ___________
Engine Condition: 		 
6.11.7 Compass Operation The compass should operate satisfactorily and not be affected by fittings and equipment in the lifeboat.    
6.12.1 Lifeboat Towing Test The lifeboat should not be damaged when towed at a speed of not less than 5 knots in calm water on even keel.    
6.15.1
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6.15.2 		Self-Righting Test The lifeboat should be incrementally rotated through angles of heel up to 180 degrees. Upon release, the lifeboat should always return to a normal upright position without assistance. The test should be conducted with he lifeboat in the fully loaded condition and in the light condition. Fully Loaded:


Light Condition: 		 
6.15.3
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6.15.5 		Flooded Capsizing Test When rotated to a heel angle of 180 degrees and released, with all entrances and openings secured in the open position, the lifeboat should attain a position in the water that permits an above-water escape for the occupants.    
6.16 Air Supply Test With all of the entrances and openings in the lifeboat closed, the air supply should be able to maintain a small positive pressure inside the lifeboat for a period of 10 minutes. The inside pressure should not exceed the outside pressure by more than 20 mbars. Test Time
Start: ___________ Finish: ___________
Tank Pressure
Start: ___________ Finish: ___________
Internal Pressure: __________ 		 
6.17.1
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6.17.7 		Fire Test The lifeboat should be enveloped in fire for a period of 8 minutes. At the conclusion of the test the lifeboat should be in such condition that it can continue to be used in the fully loaded condition.    
6.17.8
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6.17.10 		Water Spray Test The delivery rate should be to the satisfaction of the Administration. The water film should cover the boat when the boat is listed and trimmed I 5 degrees. Engine RPM: ___________
Pump RPM: ___________
Suction Pressure: ___________
Delivery Pressure: ___________ 		 
Parent topic: Annex – Evaluation of Free-Fall Lifeboat Launch Performance
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