Tupolev ANT-14
| Tupolev ANT-14 | |
|---|---|
|
|
| Type: | Passenger plane |
| Design country: | |
| Manufacturer: | |
| First flight: |
August 14, 1931 |
| Number of pieces: |
1 |
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The Soviet Tupolev ANT-14 Pravda ( Russian Туполев АНТ-14 Правда ) is a further development of the three-engine passenger aircraft ANT-9 . Only one copy was built.
development
The development work on this type was carried out under the direction of Vladimir Mikhailovich Petlyakov , who at the time was still working in Andrei Nikolayevich Tupolev's team . The design was based on the four-engined TB-3 bomber , from which the structure was also taken over. The ANT-14 was powered by five Gnome-Rhône-Jupiter engines, each with 480 hp (353 kW). She was a high-wing monoplane in cantilever designed all-metal construction with Wellblechbeplankung, only the tail was braced. The wing was in three parts and had four spars. The rigid main landing gear was equipped with two wheels arranged one behind the other.
Testing began on August 14, 1931 and was successfully completed. In the following ten years, the type served as a passenger aircraft for sightseeing flights and propaganda purposes and during this time carried around 40,000 people. A military version armed with three twin machine guns, which was supposed to carry 2600 kilograms of bombs, was not realized.
construction
The ANT-14 was a cantilevered shoulder- wing aircraft in all-metal construction and corrugated iron planking. The three-part wing was equipped with four spars. The normally executed tail unit had V-struts. The rigid undercarriage consisted of four main wheels arranged in pairs on each side, which were connected by struts to the fuselage and the inner engine pods. There was a grinding spur at the stern.
Technical specifications
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| Parameter | Data |
|---|---|
| crew | 4-5 |
| Passengers | 36 |
| span | 40.40 m |
| length | 26.48 m |
| height | 5.40 m |
| Wing area | 240.0 m² |
| V position | 6 ° |
| Empty mass | 10,650 kg |
| Takeoff mass | 17,146 kg |
| Wing loading | 71.5 kg / m² |
| Power load | 7.15 kg / hp |
| drive | five air-cooled nine-cylinder radial engines Gnome-Rhône Jupiter 9 AKK |
| power | 353 kW (480 PS) each |
| Top speed | 236 km / h |
| Cruising speed | maximum 195 km / h economical 170 km / h |
| Landing speed | 105 km / h |
| Climb performance | 4.0 m / s |
| Service ceiling | 4,220 m |
| Range | 1,200 km |
literature
- Heinz A. F. Schmidt: Soviet planes . Transpress, Berlin 1971, p. 67 .
Web links
- ЦАГИ АНТ-14 Правда. Retrieved March 30, 2017 (Russian, history and photos).