Aero A.25

The Aero A.25 was a biplane military trainer aircraft developed in Czechoslovakia from the Aero A.11 reconnaissance-bomber and generally similar to the Aero A.21 night trainer.

Some A.25s were powered by the less powerful 134 kW (180 hp) Breitfeld & Danek Perun I engines, in which case they were designated Aero A.125.

Specifications (Aero A.25)

Data from Tschechoslowakische Flugzeuge : von 1918 bis heute^[1]

General characteristics

Crew: 2
Length: 8.1 m (26 ft 7 in)
Wingspan: 12.8 m (42 ft 0 in)
Height: 3.1 m (10 ft 2 in) ^{[citation needed]}
Wing area: 36.2 m² (390 sq ft) ^{[citation needed]}
Empty weight: 985 kg (2,172 lb) ^{[citation needed]}
Gross weight: 1,270 kg (2,800 lb) ^{[citation needed]}
Powerplant: 1 × BMW IIIa 6-cylinder qater-cooled in-line piston engine, 136 kW (182 hp)
Propellers: 2-bladed fixed-pitch propeller

Performance

Maximum speed: 160 km/h (99 mph, 86 kn) ^{[citation needed]}
Service ceiling: 6,500 m (21,300 ft) ^{[citation needed]}
Rate of climb: 4 m/s (790 ft/min) ^{[citation needed]}
Wing loading: 35 kg/m² (7.2 lb/sq ft) ^{[citation needed]}
Power/mass: 0.110 kW/kg (0.067 hp/lb)^{[citation needed]}

^ Tschechoslowakische Flugzeuge : von 1918 bis heute (in German and English) (1st ed.). Berlin: Transpress : VEB verlag für Verkehrsween. 1987. p. 67. ISBN 3344001213.