Valmet Vihuri
Valmet Vihuri | |
---|---|
Type: | Trainer aircraft |
Design country: | |
Manufacturer: | |
First flight: |
February 6, 1951 |
Number of pieces: |
51 |
The Valmet Vihuri (Vihuri = gust of wind) is an advanced training aircraft from the Finnish manufacturer Valmet , which was used by the Finnish Air Force from 1953 to 1959.
History and construction
Despite economic problems, aircraft manufacturer Valmet began development of a new aircraft in the late 1940s to replace the aging VL Pyry . Martti Vainio was the project's chief designer. Most of the planning was done by aviation engineers L. Hämäläinen and T. Mäntysalo in the years 1948–1949. The Bristol Mercury VIII was chosen as the engine because there were no other alternatives, as it was produced under license in Finland for the Bristol-Blenheim bombers. The Vihuri was designed as a low-wing aircraft with seats located one behind the other and a retractable tail wheel landing gear. The prototype (VH-1) first flew in Tampere on February 6, 1951. After the successful test flights, the Finnish Air Force ordered 30 aircraft with the designation Valmet Vihuri II on February 27, 1951. In autumn 1954, 20 machines of the further developed version Valmet Vihuri III were ordered. The third version aircraft were handed over to the Air Force on January 15, 1957.
Valmet built a total of 51 Vihuri in three different series (I-III) in Kuorevesi and Tampere.
Military use
Technical specifications
Parameter | Data |
---|---|
crew | 2 |
length | 8.85 m |
span | 10.40 m |
height | 3.55 m |
Wing area | 18.86 m² |
Wing extension | 5.7 |
Empty mass | 2174 kg |
Max. Takeoff mass | 2704 kg |
Top speed | 444 km / h |
Service ceiling | 8200 m |
Range | 665 km |
Engines | 1 × radial engine Bristol Mercury VIII with 626 kW (851 PS) |
Armament | 2 × 7.7 mm Browning machine guns, 4 × 25 kg training bombs under the wings |
Picture gallery
See also
literature
- Kalevi Keskinen, Kari Stenman, Klaus Niska: Suomen ilmavoimien historia 14 - Suomalaiset hävittäjät. , AR-Kustannus ky, 1990, ISBN 951-95821-0-X .
Web links
Individual evidence
- ↑ SUOMI-SAKSA / SUUR-SANAKIRJA, Werner Söderström Osakeyhtiö, Espoo 1980, p. 1291
- ↑ Data from avia-museum.narod.ru (English), accessed on January 20, 2017