Parnall Possum

1923

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Parnall Possum

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Specification 
 MODELPossum
 CREW3
 ENGINE1 x 450hp Napier Lion
 WEIGHTS
  Take-off weight2858 kg6301 lb
 DIMENSIONS
  Wingspan14.02 m46 ft 0 in
  Length11.89 m39 ft 0 in
  Height4.20 m14 ft 9 in
  Wing area72.20 m2777.15 sq ft
 PERFORMANCE
  Max. speed170 km/h106 mph
  Cruise speed142 km/h88 mph
 ARMAMENT2 x 7.7mm

Comments
Malcolm, e-mail, 14.12.2011 12:18

Centrally mounted engines powering wing-mounted airscrews was a concept that was explored with the large four-engined Bristol Tramp, the twin-engined Boulton Paul Bodmin and the next design to emerge from Parnall, the single-engined Possum. Both the Tramp and the Possum were triplanes with twin tractor airscrews driven by shafts from the fuselage. The Possum was officially described as a "postal aircraft" a curious designation for an aircraft having gun positions in the nose and amidships. The centrally located 450 hp Napier Lion engine had side-mounted radiators which could be retracted in flight to achieve additional streamlining. The Possum fared rather better than the Tramp, which never flew, and performed well, making a public appearance at the 1923 Hendon Pageant. Despite having proved the practicality of its layout it was regarded as something of a curiosity by the pilots that flew it from Martlesham Heath in Suffolk. Experience revealed insufficient advantages to support any further development of this concept.

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