Mosquito Specifications

PR 41 (RAAF service Merlin 69)

Type: Photo Reconnaissance (Survey).

 

Dimensions

Wingspan                    54 ft 2 ins

Length                          40 ft 10ins (tail down)

                                                    41 ft 2 ins (tail up)

Height                          12ft 3.5 ins (tail down)

Wheel track                 16 ft 4 ins

Wing Area                    454 sq ft.

 

Engines

Two Packard Merlin 69

Two stage two speed supercharged intercooled V12 engines.

Coolant Ethylene Glycol/Water

Capacity                                    1649 cu ins 27 litres.

Take off power                       1,670 hp at 3000 rpm and +18 lbs boost.

                                                    1,710 hp at 6,400 ft +18 lbs

                                                    1,490 hp at 19,400 ft +18 lbs

 

Gear change                             11,000ft

Max cruise                                2650 rpm +7 lbs

Max climb                                 2850 rpm +12 lbs

Engine weight                         1675lbs


Propellers

De Havilland (Hamilton Standard) three blade constant speed fully feathering.12 ft diameter

 

Fuel Capacity

100/130 Octane

Fuselage                       2 x 25 gal

Centre                            2 x 65 gal

Inner wing                   2 x 64 gal

                                       2 x 78 gal

Outer wing                   2 x 24 gal

                                       2 x 34 gal

Long Range                 126 gal

Drop Tanks                  2 x 50 gal or

                                       2 x 100 gal

 

Maximum Fuel                       856 Imp gal

 

Performance

Max                                415 mph @ 28,000 ft

Max Cruise                  358 mph @25,000 ft

Econ Cruise                 250 mph

Climb                             7.5 min to15,000 ft.

                                       16 min to 25,000 ft.

Ceiling                          38,500 ft

Range                            Max 2,450 miles at 25,000ft

 

Weights

Empty                            14,344 lb

Max                                22,350 lb

 

Armament

             None

 

Crew

Pilot and Observer (Navigator)

 

Equipment

2 x F 52 Cameras (Vertical) 20 in or 36 in

2 x K 17  Camera (Oblique) 6in fitted in rear fuselage

1 x K17  Camera (Vertical in nose) 6 in

This provides a Trimetrogon arrangement when the three K17 6in      cameras are fitted.

 

             Cameras

 

Williamson K17 camera

Lenses             6,12 & 24 in

Shutter            Between the lens

Magazine        250 exposure

Format            9 in x 9 in

 

F52 Camera

Lenses             36 in f6.3

Shutter            Focal plane

Magazine        250 or 500 exposure

Format            8.25 in x 7 in

 

Trimetrogon Survey Camera fitout

 

This is an arrangement of three cameras arranged to give a horizon to           horizon view thus aiding the fixation of features on the ground.

The PR40 and 41 were the only Mosquito variants to feature an          oblique cameras facing to the right.

 

Construction

Spars                                          Canadian Spruce

Plywood                                    Beech and Birch

Panel core material                Balsa

 

Limited amounts of walnut were also used in sections such as the wing attachment points.

 

Number built

28 converted from FB40.