Amiot 143
The Amiot 143M was a late 1930s French medium bomber designed to meet a requirement for a bomber capable of day/night bombing, long-range reconnaissance and bomber escort.
In 1928, the French Air Ministry issued a specification for a multi-seat combat aircraft to act as a light bomber, reconnaissance aircraft and long-range escort fighter.
Amiot received an order for two prototype Amiot 140s, to be evaluated against the competing Bleriot 137, Breguet 410 and SPCA 30.
The Amiot 140 was a high-winged cantilever monoplane of all-metal construction, with corrugated wing skinning and a fixed tail wheel undercarriage. The pilot sat in an open cockpit, with cockpits for gunners in the nose and dorsal positions. A glazed gondola under the forward fuselage carried a bombardier/gunner, ensuring that the gunners had a clear field of fire.
The first prototype was fitted with Hispano-Suiza 12Nbr engines to allow flight testing, making its maiden flight on 12th April 1931 with the second prototype completed in Feb 1932 but the continued non-availability of its intended engines, the Lorraine-Dietrichs or turbocharged Hispano-Suizas, meant that it never flew. Despite this, on 23 November 1933 an order was placed for 40 Amiot 140s, to be powered by 880 hp Lorraine 12Q Eider engines.
The FAM had revised its requirements,concentrating on the bombing role and for better performance. Amiot redesigned the aircraft and incorporate lessons learned during testing of the Amiot 140. The gondola under the fuselage was enlarged, allowing easier operation of the aircraft's guns and a radio-operator to be carried. Manually operated gun turrets were provided in the nose and dorsal positions.Orders were placed for two prototypes, differing only in the engines fitted, with the Amiot 142 having Hispano-Suiza 12Y engines and the Amiot 143 having Gnome-Rhone 14K radial engines. The 143 flew first, on 1 August 1934, with the 142 not flying until January 1935.As it was decided to allocate the Hispano-Suiza engines to fighters, the Amiot 143 was selected,the existing order for 40 Amiot 140s being converted to 143s.
The Amiot 143 had the same high-wing and fixed undercarriage as the Amiot 140, with the wing thick enough to allow crew access to the engines by a tunnel between the wing spars. The pilot sat in an enclosed cockpit, level with the leading edge of the wing and the navigator-bombardier, who was also provided with flying controls,sat in the glazed gondola beneath the pilot. After 40 aircraft had been completed, the design was further revised, with the aircraft being fitted with a longer nose and changes to the defensive gun placements.
At the outbreak of the Second World War, Amiot 143s equipped 5 metropolitan groupes together with a single African based groupe.Following the start of the Battle of France, the Amiot 143M was mainly used in night attacks against German airfields and lines of communications, with losses relatively low.Some planes of II/38 served as transports for the French in Syria. This groupe later went over to the Allies after their landings in Africa.The last Amiot 143M was retired from service in February 1944.
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