Of wooden construction with two 236 hp Renault MV-6 six-cylinder inverted air-cooled engines employing a fore and aft arrangement, the SAM-l3 was fitted with a retractable tricycle undercarriage, the armament comprising two synchronised 7,62-mm guns in the forward fuselage and a similar weapon in the forward end of each tailboom. Flight testing was initiated late in 1940, but the development programme was halted when Germany invaded the Soviet Union and the sole prototype was destroyed when the design bureau was evacuated.
No reliable performance data is available
Max speed reported: 323 mph (520 km/h) at 11,485 ft (3 500 m)
Span. 23 ft 11 1/3 in (7,30 m)
Length, 25 ft 4 in (7,68 m)
Wing area, 96.88 sq ft (9.00m sq.m)