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Forepeak Anchor cable stowage only.
Messroom Furnished with settees, table, lockers and escape hatch.
Wheelhouse Contains settees, screen-wipers and a full set of dashboard
and nautical equipment for ship and engine control, with a clear view in all
directions.
Engine-room A spacious compartment with central gangway and sound-insulated
bulkheads.
Galley:- Contains a pressure-paraffin cooker, wash-up sink and lockers.
Lavatory:- Comprises washbasin, W.C., toilet equipment and lockers.
Saloon:- Provides table accommodation for six persons and settee seating
for eight persons. Wardrobe and stores lockers are supplemented by settee
lockers. The table top is portable and when the supports are conjoined to the
hinged framing from the wing spaces behind the settee backs, a framework is
assembled to carry three stretchers. The stretchers and table top can be
properly stored in these wing spaces. In this manner it is possible in five
minutes to convert the saloon into a sick-bay for three stretcher cases.
Cockpit A sufficiently large open space to receive a stretcher and deep
enough to protect the occupants from storm water. It is capable of accommodating
eight sitting patients.
Fuel tanks, launch store lockers and steering gear occupy the three adjacent
spaces of this compartment, and it is fitted with a portable awning and spars
to protect the seated patients.
Afterpeak This is fitted with a large W/T door which affords easy access to
the twin rudder mechanism. All compartments are adequately lighted, heated
and ventilated, according to their requirements.
Machinery The propelling machinery comprises two Thornycroft type RNR/6
six-cylinder diesel engines, each developing 95 b.h.p. at 1650 r.p.m., fitted
with oil operated reverse gears and driving handed propellers through 2 : 1
reduction gears. An important feature of the installation is the remote
control of engines from the wheelhouse.
A bilge pump is fitted to one engine. but a hand pump is also provided.
The engines are fitted with electric starting devices, which can be
operated from the engine-room and the wheelhouse.
Electrica1 Two 24-volt batteries with an aggregate capacity of 220 ampere
hours are used for starting the engines and lighting. These are charged by
generators mounted on the propelling machinery.
In addition to a liberal supply of internal lighting. the batteries
supply navigation lights, searchlight, horn, and an illuminated sign for night
work.
Observations
Max. Trial speed 14,55 Knots 1650 r.p.m.
Continuous Rating speed 13.85 „ — 1580
Operational speed 11.25 „ 1300 „
Cruising speed 12.15 „ 1400 „
Mean Propeller Slip 21%
Fuel consumption for 522 hours running time amounts to 2,100 galls. which
is to be considered highly satisfactory. For the greater part of this time
the engines have run at 1,350 - l,400 r.p.m. and developed approximately 100
b.h.p. Neglecting allowances for temporary reduction in speeds due to
manoeuvring:-
Total consumption per hour 4 Galls. @ 12 Knots.
Fuel consumption per b.h.p. hour 0.344 lbs „ „
Endurance for 200 galls. 600 miles „ „
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