Aero A.42
| Aero A-42 | |
|---|---|
|
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| Type: | bomber |
| Design country: | |
| Manufacturer: | |
| First flight: |
1930 |
| Number of pieces: |
2 |
The Aero A.42 was a single-engine aircraft produced by the Czechoslovak manufacturer Aero .
history
The monoplane developed as a bomber in 1929 (first flight in 1930) with a rigid landing gear had a very advanced design for the time, but the Czech Air Force was not satisfied with the performance of the aircraft, in particular the take-off and landing distances were considered too high and the rate of climb felt too slow. In addition, the crews could not get used to the narrow cabin and poor visibility.
After test flights with the two prototypes , the Czech Air Force Aero proposed various modifications to the design, including changing the wooden wings to metal surfaces. However, the company did not continue to develop in this direction, and apart from the two prototypes, no further copies of the A.42 were produced for the Czech Air Force.
On September 20, 1930, the pilot Vilém Svozil set international speed records with one of the two machines with an average speed of 252.348 km / h over a distance of 1,000 km with payloads of 500 kg and 1,000 kg and with an average speed of 253.428 km / h without Payload.
One of the two machines was in service with the Czechoslovak Air Force until 1938, then with the Slovak Air Force, where it was probably scrapped in 1940.
variants
Despite the failure, Aero continued to experiment with the pattern. The A.42 was equipped with different drive variants and armaments, and the cockpit also existed in open and closed variants.
In 1933, the A.42c, a version with two Walter Merkur IV engines, each with an output of 370 kW (503 hp) was built.
Military users
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Technical specifications
| Parameter | Data |
|---|---|
| crew | 3 (one pilot, one observer / bombardier, one radio operator / gunner) |
| length | 13.80 m |
| span | 20.80 m |
| height | 3.40 m |
| Wing area | 54.00 m² |
| Wing loading | 80.5 kg / m² |
| Power load | 4.74 kg / hp |
| Empty mass | 2940 kg |
| Payload | 1800 kg |
| Max. Takeoff mass | 4740 kg |
| drive | a water-cooled 18-cylinder W motor Isotta Fraschini Asso 750 (license ČKD-Praga ) with 800 PS (588 kW) rated power and a three-bladed propeller (ø 3.4 m) |
| Top speed | 270 km / h |
| Max. Cruising speed | 250 km / h |
| Climb performance | 1.67 m / s |
| Rise time | 50 min at 5000 m altitude |
| Range | 1200 km |
| Service ceiling | 7000 m |
| Armament | two 7.9 mm machine guns, 400 kg bomb load |
See also
literature
- Wilfried Copenhagen : The great aircraft type book. 5th edition, Transpress, Berlin 1989.
- Heinz AF Schmidt: Historic aircraft. Volume II. Transpress, Berlin 1970, p. 9.
