Chizhevski BOK-1

Bureau of Special Designs · Soviet Union · first flew 1936 · light aircraft

The BOK-1, also known as the SS (Stratospheric Plane), was a two-seat, single-engine, low-wing monoplane designed as an experimental high-altitude aircraft.

Recognition (WEFT)

W — WingsLow-mounted, straight
E — Engines1 × piston, nose-mounted
F — Fuselage12.86 m fuselage
T — TailConventional

WEFT is AircraftIQ's four-point recognition method — how it works.

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A low-wing monoplane with a 30 m span, a pressurised cabin and a single M-34 RNV engine.

Specifications

Figures are for the representative variant described above; marks differ. See how AircraftIQ sources figures.

History

It first flew on 13 December 1935 and was developed from the Tupolev ANT-25, to study flight above 11,000 metres.

Variants

It was developed into the BOK-7, and only one BOK-1 was built.

Where you'll see it

It was the first Soviet aeroplane to use a pressurised cabin.

Related aircraft

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