Avro 555 Bison
1921
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Avro 555 Bison

Deck-landing reconnaissance and Fleet gunnery spotting biplane, first flown in 1921. Twelve Bison Is built for the FAA in 1923. One converted to an Avro 555B amphibian with a central float. Main production during 1925-26 comprised 41 Bison IIs, each with the upper wing raised on struts above the fuselage and no dihedral. Operated from the aircraft carrier HMS Eagle in the Mediterranean, on board HMS Furious and at Hal Far, Malta.


Specification 
 MODELBison IA
 ENGINE1 x Napier Lion II, 336kW
 WEIGHTS
    Take-off weight2631 kg5800 lb
    Empty weight1887 kg4160 lb
 DIMENSIONS
    Wingspan14.02 m46 ft 0 in
    Length10.97 m36 ft 0 in
    Height4.22 m14 ft 10 in
    Wing area57.6 m2620.00 sq ft
 PERFORMANCE
    Max. speed177 km/h110 mph
    Cruise speed145 km/h90 mph
    Ceiling4265 m14000 ft
    Range547 km340 miles
 ARMAMENT1 x 7.7mm machine-gun

Comments
Klaatu83, 19.11.2014

During the early 1920s directing the gunfire of the battleships was considered a far more important mission for carrier-based aircraft than either attacking enemy warships or defending the fleet from enemy air attack. Both the Avro Bison and the Blackburn Blackburn were specifically designed during that period to fulfill that mission. It is difficult to determine which of the two airplanes was uglier.

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