B├ęchereau S.A.B.1
Louis Bechereau established SAB (Societe et Ateliers Bechereau) and was joined in designing a single-seat fighter by Bernard, Bleriot and Birkigt. This, the SAB 1, had the airframe built by Levasseur.
The SAB 1 single-seater fighter, was built by Avions Pierre Levasseur, and was a two-bay biplane powered by a 300 hp Hispano-Suiza 8Fb watercooled eight-cylinder engine. The monocoque fuselage is covered with aluminum in front and fabric in the rear. The engine is totally enclosed in an aluminum cowl, and there is a large spinner over the propeller boss. The radiator is of annular shape and totally surrounding the nose of the machine.
The wing bracing has no struts connecting the top plane with the fuselage. The usual center section struts are replaced by short lengths of lift wires, running from the body to the top of the first pair of inter-plane struts. From the lower ends of these struts, or rather from the bottom spars, two struts converge downwards and inwards, where they are attached to the lower member of the under carriage. The absence of center-section struts and their bracing naturally leaves the pilot's view unobstructed.

The top surface of both planes is covered with three-ply wood from the leading edge to the rear spar. Ailerons and elevators are balanced by having their leading edges arranged in the form of saw teeth.

The armament consists of four machine guns, two of which are mounted above the fuselage and synchronized in the usual way. The other two are placed in the top plane, some little distance out, and are operated by Bowden control.
SAB 1 France
Flight testing was initiated during 1918 in competition with the Nieuport 29, five examples being built. Selection of the Nieuport fighter by the Aviation Militaire resulted in discontinuation of further development of the SAB fighter.

Engine: Hispano-Suiza 8Fb, 300 hp
Span, 30 ft 6 1/8 in (9,30 m).
Wing area, 311.09 sq ft (28,90 sq.m)
Length, 22 ft 7 5/8 in (6,90 m).
Height, 8 ft 4 1/3 in (2,55 m).
Empty weight, 1,726 lb (783 kg).
Loaded weight, 2,474 lb (1 122 kg).
Max speed, 130 mph (210 km/h).
Time to 6,560 ft (2 000 m), 5.78 min.