Avia BH 5 history

The plane was constructed according to the type BH-1, the first successful plane manufactured by the Avia Works. It was an all-wooden two-seat training, sports and messenger plane, which was bigger than BH-1, more solid and more sophisticated, in its aerodynamics and technology. It was designed for flying basic acrobatics. The BH-5 was the first Czechoslovak plane to win an international contest and thus received the King of Belgium‘s Prize and the prize of the Belgian Tourist Aircraft Contest in 1923. The pilot, Zdeněk Lhota, flew to Brussels and back with a layover in Mainz at an average speed of 138 km/h.

In 1923 this was a remarkable performance, not only in the sport-plane category. In 1923, the type BH-5 also won the “D” category in the President of the Republic’s Contest. The Walter NZ-60, a radial five-cylinder engine, was installed in the BH-5 plane; it was the very first and a very successful engine designed by the Walter Company.

Based on the results of military tests of the BH-5s, the Ministry of Defense placed an order for a series of slightly improved BH-9, BH-10 and later also BH-11 Avias, which had been successful in many national, as well as international contests and also in record and promotion flights.

The BH-5 Avia plane was marked L-BOSA; thanks to this mark, all the planes of this very successful series were nicknamed “boska“.

The owner and operator of the airplane is the Historical Flight RČS.

Avia BH 1 history

The Avia BH-1 was the very first aircraft designed by Avia Co. established in 1919. Pavel Beneš and Miroslav Hajn, who later both became renowned aircraft designers, were the first partners in Avia (an aircraft manufacturing and repair shop). In 1920, they commenced design and structural work on the BH-1 aircraft. They devised and utilized components which were revolutionary for that era - a thick Flight airfoil, a Flight-to-fuselage fitting (which they patented) and a floating rudder. In September 1921, the aircraft participated in the national cross-country air competition, where it outperformed stronger aircraft primarily due to its clean aerodynamics and advanced manufacturing technology. The BH-1 remained in Avia’s ownership and participated in various promotional events and air shows, and was flown by a number of renowned pilots. The aircraft crashed and was severely damaged in the spring of 1922, and has never been repaired. Based on the successful design of the BH-1, Avia then built the BH-3 series of fighter aircraft, which served in the Czechoslovak Air Force.

The owner and operator of the airplane is Marcel Sezemský