BH-20 Light Sports Aircraft

In 1924, Pavel Beneš and Miroslav Hajn developed the BH-20, a light sports aircraft intended for both recreational flying and the training of civilian pilots. This wooden, two-seater, single-strut biplane was powered by a 60 hp Walter NZ-60 engine.

Origins and Design

The BH-20 was envisioned for initial pilot training, forming part of a tiered system alongside other aircraft from the same firm. It would serve for primary instruction, with the BH-22 and BH-21 designated for subsequent training stages.

A Solitary Prototype

Despite its potential, the BH-20 never entered serial production. Only one example was built, receiving the civil registration OK-IPB, thus remaining a unique prototype in aviation history.

Technical Specifications

Modification	BH-20
Wingspan, m	7.88
Aircraft length, m	6.29
Wing area, m2	16.10
Empty weight	345
Maximum takeoff weight	485
Engine type	1 Piston engine Walter NZ-60
Power, hp	1 x 60
Maximum speed, km/h	160
Cruising speed, km/h	140
Rate of climb, m/min	186
Service ceiling, m	4000
Crew, crew members	2

Image and diagram gallery of the BH-20 Light Sports Aircraft

BH-20