SNCAC NC.1070
The SNCAC NC.1070 was a piston engined attack and torpedo bomber designed and built in France after World War II. The 2nd prototype, the NC1071, was the first French multi-jet turbine powered aircraft.
The NC.1070 was a contemporary of the Nord 1500 Noréclair and was intended to take a similar rôle. It was a twin engine aircraft of unconventional layout with twin booms, twin fins and a double horizontal tail. The central fuselage was short compared with the wing span, and extended beyond the tail.
It was powered by a pair of SNECMA 14R fourteen-cylinder, two-row, air-cooled radial engines mounted ahead of the wing.There were three crew,a bomb aimer/observer housed in a partially glazed nose, the pilot in a conventional cockpit which merged into a raised rear fuselage and, in the extreme tail just beyond the fins, a rear gunner in a turret.
The aircraft was first flown on 23 May 1947.Tests continued into 1948 but,it was seriously damaged in a belly landing on 9 March 1948 and did not fly again.Instead,SNCAC concentrated on the jet powered second prototype,the NC.1071.
This was powered by a pair of 5,000 lbf Rolls-Royce Nenes, mounted in booms like the piston engines of the NC.1070, though rather further forward, positioned below the wing and with their tailpipes emerging from the previously pointed boom ends.
Because of the lowered booms/tailpipes the lower, fixed horizontal tail was removed.The rear gun position was replaced by a partially glazed observer's position and the bottom of the rudder was clipped to avoid the jet exhaust. Apart from these engine induced changes the NC.1071 was aerodynamically very similar to the NC.1070, with the same dimensions.Its maximum speed was increased by nearly 40% at altitude and it had a greater ceiling, 43,000 ft but its range, much reduced, to around 600 miles.
The NC.1071 made its first flight on 12 October 1948. It suffered damage to its undercarriage on 27 April 1949, flew again in 1950 and was modified after significant structural distortion was discovered in flight.Though both an all weather fighter variant (NC.1072) and an attack bomber (NC.1073) were considered, they were not built and development was abandoned at the end of NC.1071's flight tests.
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