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Hydraulic davit free-fall survival systems

   Designation
   Rules and regulations
   Specification
   Technical data
Hydraulic davit free-fall survival systems

Designation

This system has been designed for installing onboard the sea-going vessels, of unrestricted navigation region, offering possibility of freefall launching of the lifeboat loaded with a complete set of passengers, even at a vessel's list up to 20o either way and/or trim up to 10o and remains operable at ambient temperature within the range from -30oC up to +65oC.
Moreover, the system will also allow for:

  • launch of the boat with a complete set of passengers by means of a hydraulic davit arrangement;
  • recovery of the boat with a crew of 3 to the stowage position by means of a hydraulic davit arrangement.

Rules and regulations

All components of the system comply with requirements of SOLAS 74 Convention - Consolidated Edition of 1992, IMO Resolution A.689/17 and requirements of particular classification societies as BV, DMA, DNV, GL, LR, MRS, MSA, PRS and SBG.

Specification

The complete Hydraulic Davit Freefall Survival System consists of a freefall lifeboat and launching arrangement comprising launching ramp, davit arm assembly, hydraulic winch and cylinders, hydraulic installation, traverse beam for boat suspension and necessary rigging. With slings disconnected and releasing pin unlocked the boat runs down the ramp and freefalls into the water. In case the freefall launching is unrealisable the design of the system enables also normal launching of the boat loaded with a complete set of passengers with a davit arm swung out by hydraulic cylinders and hydraulic winch that lowers the boat onto the water.The boat with a crew of 3 can be recovered and stowed in its normal position on the ramp the same way. Pump unit is provided with a hydraulic pump driven with

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Free-fall lifeboats technical data

Boat typeFFB
57C2
FFB
57T2
FFB
60C1
FFB
60T1
FFB
67C1
FFB
67T1
FFB
74C2
FFB
74T2
FFB
82C1
FFB
82T1
Length (m) 5,75 5,756,006,006,706,707,407,408,208,20
Breadth (m) 2,202,202,652,652,652,652,652,652,652,65
Depth (m) 1,451,451,561,561,561,561,561,561,561,56
Capacity (persons) 18182826323236364141
Free fall cert. height (m) 12,0012,0014,5014,5016,0016,0018,0018,0020,0020,00
Weight (kg)
Boat eqpd.
3450385036004000350040004400490049005350
Weight (kg)
With persons
4800520057005950590064007100760079758425