PR XVI (RAAF service Merlin 76/77)

Type: Unarmed pressurised high altitude reconnaissance.

 

Dimensions

Wingspan                   54 ft 2 ins

Length                         40 ft 4.5ins (tail down)

                                                 41 ft (tail up)

Height                         12ft 3.5 ins (tail down)

Wheel track                16 ft 4 ins

Wing Area                   454 sq ft 42.18 sq m.

 

Engines

Two Rolls Royce Merlin 76/77.

Two stage two speed supercharged intercooled V12 engines.

Coolant                        Ethylene Glycol/Water

Capacity                      1649 cu ins 27 litres.

Take off power           1250 hp at 3000 rpm and +12 lbs boost.

                                     1,655 hp at 10,000 ft 18 lbs

                                     1,475 hp at 21,000 ft 18 lbs

Gear change               17,000ft

Max cruise                  2650 rpm +7 lbs

Max climb                   2850 rpm +12 lbs

Engine weight            1645/1665 lbs


Propellers

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

 

Fuel Capacity

100/130 Octane

Fuselage                      2 x 68 gal

Inner wing                  2 x 65.5 gal

                                     2 x 78 gal

Outer wing                  2 x 24 gal

                                     2 x 34 gal

Long Range                121.5 gal

Drop Tanks                 2 x 40 gal Metal or

                                     2 x 50 gal Wooden or

                                     2 x 100 gal Papier Mache

 

Maximum Fuel          860.5 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 11,734 m

Range                          Max 2,450 miles 3,941 km


Weights

Empty                          14,635 lb 6,638 kg

Max                              23,350 lb 10,141 kg.

 

Armament

None

 

Crew

Pilot and Observer (Navigator)

 

Equipment

1 x F24 Camera (Oblique) 8 in or 14 in

2 x F24 Cameras (Vertical) 14 in

2 x F52 Cameras (Vertical) 36 in or

2 x F8 Cameras (Vertical) 20 in.

 

Cameras

F8 Survey camera

Lenses                         20 in f5.6 and f6.3

                                                  36 in f6.3

Shutter                        Focal plane

Magazine                    250 exposures

Format                        8.25 in x 7 in

 

F24 Universal camera

Lenses                         8 in f2.9

                                     14 in f5.6 & f4.5

Shutter                        Focal plane

Magazine                    125 or 250 exposure

Format                        5 in x 5 in

 

F52 Camera

Lenses                         36 in f6.3

Shutter                        Focal plane

Magazine                    250 or 500 exposure

Format                        8.25 in x 7 in

 

Pressure cabin

The aircraft was fitted with a pressure cabin which could maintain a cabin altitude of 24,500 ft at 35,000 ft.

 

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

A total of 439 PR XVI’s were built of which only A52-600 survives today.

Mosquito Specifications