Avia BH-21 fighter biplane - Czechoslovak "Red Devil" from interwar period

Avia BH-21 - fighter biplane of late 1920s - served in Czechoslovak and Belgian Air Forces and proved to be capable plane with supreme aerobatics capabilities. Many Czechoslovak and some Belgian top scoring pilots of WWII started their career flying this type. With slightly obsolete wooden construction resembling WWI influences it nevertheless started long line of interwar Avia fighter biplanes. But why was it called Red Devil? Learn more in this video.
Special thanks to Daniel Brackx from www.belgian-wi...
for providing photos of Belgian BH-21s.
Picture sources include:
www.valka.cz/
www.vrtulnik.cz...
www.cs-letectvi...
www.kralvzduchu...
www.airwar.ru/