__NOTOC__
The Avia BH-9 was a twin-seat sports plane built in
Czechoslovakia
Czechoslovakia ( ; Czech language, Czech and , ''Česko-Slovensko'') was a landlocked country in Central Europe, created in 1918, when it declared its independence from Austria-Hungary. In 1938, after the Munich Agreement, the Sudetenland beca ...
in 1923, based on the
BH-5. As with other developments in the
BH-1 lineage, the BH-9 was a low-wing braced
monoplane
A monoplane is a fixed-wing aircraft configuration with a single mainplane, in contrast to a biplane or other types of multiplanes, which have multiple wings.
A monoplane has inherently the highest efficiency and lowest drag of any wing con ...
that accommodated the pilot and passenger in tandem, open
cockpit
A cockpit or flight deck is the area, on the front part of an aircraft, spacecraft, or submersible, from which a pilot controls the vehicle.
The cockpit of an aircraft contains flight instruments on an instrument panel, and the controls th ...
s. The BH-9's structure was strengthened to allow the use of a higher-power
engine
An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy.
Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power ge ...
than in its predecessors, and for the first time, this was a domestically produced powerplant. Although built as a twin-seat aircraft at least one (registration L-BONF - see picture) was converted to a single-seater.
The Czechoslovakian Army showed interest in it as a trainer and liaison aircraft, and ordered ten examples under the designation B.9.
A B.9 won the 1925
Coppa d'Italia air race, and the following year, one was flown on a 1,800 km (1,100 mi) circuit
Prague
Prague ( ; ) is the capital and List of cities and towns in the Czech Republic, largest city of the Czech Republic and the historical capital of Bohemia. Prague, located on the Vltava River, has a population of about 1.4 million, while its P ...
-
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
-Prague with an average speed of 131.2 km/h (82 mph).
Specifications
See also
References
* Němeček, V. (1968). ''Československá letadla''. Praha: Naše Vojsko.
*
*
*
airwar.ru
{{AVIA aircraft
Single-engined tractor aircraft
Low-wing aircraft
1920s Czechoslovak sport aircraft
BH-09