The Aero C-104 was the last biplane manufactured in series in Czechoslovakia. During WWII, the well-designed biplanes Bücker Bü 131 D Jungmann were manufactured by Aero Co. After the Second World War, some of the aircraft remained in Czechoslovakia and after liberation more were manufactured as C-4 types, equipped with the original German Hirth HM 504 engines. A total of 20 of the C-4 aircrafts were manufactured. In 1946, a Czechoslovak Walter Minor 4-III engine of 77 kW (105 HP) was installed into the C-4 airframe. This version, originally known as the C-4A, later as the C-104 type, was fairly widely used. Until 1949, a total of 160 of the C4 type aircraft were manufactured. Both the C-4 and, in particular, the C-104 types initially served in the Czechoslovak Air Force for basic and advanced training of pilots. Later on, the aircraft were gradually transferred to aero clubs. In 1960 and 1961, the C-104 types also entered the table of international aviation records. The significance of these aircraft to the training of Czechoslovak military and sports pilots was considerable. Several of them are capable of flying even today.
The Aero C-104 (OK-RXE) serial number 237 is the property of the Aviation Museum of the Historic Institute of the Army of the Czech Republic, and is run by the Sport Flight Centre in Moravská Třebová.
Technical data
Engine: Walter Minor 4-III
Power: 77 kW (105 HP)
Wingspan: 7,4 m
Length: 6,76 m
Empty weight: 390 kg
Take-off weight: 680 kg
Maximum speed: 185 kph
Service ceiling: 4300 m
Range: 650 km
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