Technical Data

 


Artist Geoffrey Sims

Image RNLI
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The engine Room

Detailed Photos of 44-016

Detailed Photos of 44-001

Detailed Photos of the US Coast Guard Boats

Technical Details
USCG 44' Motor Lifeboats RNLI Waveneys
Length: 13.45m (44ft 1 1/2in) Length: 13.62m (44ft 8in)
Beam: 3.86m (12ft 8in) Beam: 3.84m (12ft 7in)
Draft: 1.07m (3ft 6in) Draft: 1.19m (3ft 11in)
Displacement: 17.7 ton (US) Displacement: 17 ton (UK)
Speed: 16 knots (Cummins) 14 knots (GM) Speed: 15.5 knots
Range: 150 nautical miles (Cummins) 200 nautical miles (GM) Range: 190 nautical miles
Crew: 4 Crew: 5
First built: 1962 First built: 1964
Last built: 1962 Last built: 1982
Entered service: 1972 Entered service: 1967
Finished service: 1 still in service Finished service: 1999
Number built: 110 Number built: 21
Operation numbers: 44300 to 44409 Operation numbers: 44-002 to 44-022
Engines: Twin Cummins 200 hp or General Motors 184 hp  Engines: Twin Caterpillars 203 hp or General Motors 250 hp
Construction: Corten steel hull, mild steel framing and decks and aluminium superstructure. Construction: Corten steel hull with aluminium decks and superstructure
Launch method: Lies afloat Launch method: Lies afloat
Designed by: U.S. Coastguard Designed by: U.S. Coastguard/RNLI modifications
Self-righting: See self-righting page  Self-righting: See self-righting page 

 

U.S. Coast Guard photo
An early artists impression of how the first U.S. Coast Guard 44' MLB might look.

The main differences between the U.S. Coast Guard and the RNLI Waveneys are listed below.

Structural

1.

Aluminium alloy main deck in lieu of steel.

2.

After cabin increased in height by 2" and coachroof forward of steering shelter increased in volume. Modifications made to achieve more positive self righting.

3.

Increased weather protection for helmsman by fitting permanent sides and windows to the open wheelhouse in lieu of portable screens.

4.

Bolted "A" brackets fitted in lieu of welded "P" brackets.

5.

Electric windlass fitted in lieu of hand anchor recovery.

6.

Two 65lb anchors fitted in lieu of one 60lb and one 30lb.

7.

Pushpit rails fitted to raised deck aft.

8.

Mathway mechanical steering gear fitted in lieu of hydraulic gear.

9.

Double bottom (foam filled) fitted in the engine room. Foam also fitted in forepeak, port and starboard at after end of crew's cabin and in centre section of the void space below the well deck.

10.

Reserve fuel tank fitted between frames 4 and 5.

11.

Engine room ventilators now draw air from inside the steering position, to prevent spray from entering the engine room.

12.

Wave subduing system fitted.

13.

Battery boxes recessed into tank top in crew's cabin.

14.

Windscreen washing system fitted.

15.

Port and starboard navigation lights fitted in screens on wheelhouse top.

16.

Natural ventilation system fitted to after cabin with RNLI design inlet and outlet valves.

17.

Toilet compartment deleted and this space fitted out as radio operator's area.

18.

RNLI duplex scuppers are fitted in both wells in addition to the ball valves.

Machinery

19.

Ford Mermaid engines of 250 BHP installed in lieu of Cummins 215 BHP.

20.

Better diesel generator fitted for battery charging.

21.

Two fire hydrants and two fire and bilge pumps driven by main engines in lieu of one hydrant and one pump with one engine room bilge eductor.

22.

Fixed bilge suctions fitted in engine room.

23.

Water injected stern exhausts in lieu of transverse exhausts.

24.

Electrical distribution by double pole circuit breakers.

25.

Engine room fire extinguishing system operated from wheelhouse.

26.

D/F and Decca Navigator installed.

27.

Intercom system fitted with master unit in wheelhouse serving after cabin, crew's cabin, forward cabin and fore deck.

28.

Depth recorder fitted in crew's cabin in addition to indicator in wheelhouse.

29.

Transmission and reception of M/F radio from wheelhouse in addition to radio operator's position. (Frequency changing at the set only).

30.

Single whip aerial on the forward casing replaced by two whip aerials on wheelhouse front.

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