Kalinin K-12


1st Flight 1936

Crew: 3

Length: 8 m (26 ft 3 in)

Wingspan: 18 m (59 ft 1 in)

Wing area: 72.75 m2 (783.1 sq ft)

Empty weight: 3,070 kg (6,768 lb)

Gross weight: 4,200 kg (9,259 lb)

Powerplant: 2 × Shvetsov M-22 9-cylinder air cooled radial engine, 324 kW (435 hp) each

Propellers: 2-bladed metal variable-pitch propeller


Maximum speed: 240 km/h (150 mph, 130 kn) at 3,000 m (9,800 ft)

Service ceiling: 7,170 m (23,520 ft)

Take-off distance: 700 m (2,300 ft)

Landing distance: 300 m (980 ft)


Guns: 2 x 7.62 mm (0.300 in) ShKAS machine guns in nose and tail turrets.

Bombs: 500 kg (1,100 lb) bomb load in a vertical rack


The K-12 was intended as a tailless bomber aircraft.

Also called the Kalinin BS-2 or the Zhar-Ptitsa Firebird, it featured welded steel-tube construction with fabric covering, as well as a dummy nose and tail turrets.

The K-12 was painted in a garish color scheme representing a bird.

A subscale glider to test the K-12’s features flew in 1934, piloted by V.O. Borisov.

The K-12 flew in autumn 1936 and was demonstrated at Tushino in August 1937.

The full-size K-12, however, was cancelled after Konstantin Kalinin was arrested and executed as an enemy of the state.


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