SA-4 Sperrin
Bombardier
Short Brothers & Harland (UK)
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The crew: 05
Length: 31.14 m
Wingspan: 33.20 m
Height: 8.69 m
Curb Weight: 33,000 kg
Maximum takeoff: 52,200 kg
Engine: 04 jet engines with Rolls-Royce Avon 2700 kg of thrust each.
Speed: 912 km / h
Altitude: 13,700 m
Range: 5,150 km
First flight: 10.08.1951
Quantity produced: 02 prototypes.
National use: English.
Aircraft comparisons: Convair XB-46 Martin XB-48 , North American B-45 Tornado (USA), Contact Electric Canberra (UK) Ilyushin Il-28 Beagle , Tupolev Tu-14 Bosun (Soviet Union).
What killed the Sperrin was the British acquiring the B-29 Washington. The Sperrin was used to test high altitude bomb sights and I think the de Havilland Gyron.