(Tupolev) ANT-9 @·AIRCRAFTUBE

  • Tupolev ANT-9 Tupolev ANT-9
    Tupolev ANT-9
  • On skis On skis
    On skis
  • Tupolev ANT-9 "Crocodile" Tupolev ANT-9 "Crocodile"
    Tupolev ANT-9 "Crocodile"
  • A Dobrolet ANT-9 A Dobrolet ANT-9
    A Dobrolet ANT-9
  • Tupolev ANT-9 Tupolev ANT-9
    Tupolev ANT-9
  • "Crocodile" "Crocodile"
    "Crocodile"
  • Presentation Red Square (May 1st, 1929) Presentation Red Square (May 1st, 1929)
    Presentation Red Square (May 1st, 1929)
  • May 1st, 1929 May 1st, 1929
    May 1st, 1929
  • ANT-9 "Crocodile" ANT-9 "Crocodile"
    ANT-9 "Crocodile"

Tupolev ANT-9

The Tupolev ANT-9 was a Soviet passenger aircraft of the 1930s. It was developed as a reaction to the demand for a domestic airliner. At this time Deruluft, one of the forerunners of Aeroflot, flew only with foreign models, which were mainly German or Dutch.

Design work began in December 1927. The first prototype, named Krylia Sovietov (wing of the Soviets) used three French Gnome-Rhone Titan radial engines. It was presented to the public on 1 May 1929 at Red Square and it went to the national flight testing. With a flight mass of 5,044 kg and a payload of 1,700 kg, the aircraft showed a top speed of 209 km/h. During tests, an altitude of 1,000 m was maintained for 6.5 minutes and practical ceiling was established at 3,800 m. Range with passengers was close to 1,000 km. The take-off roll was 290 m, and the landing distance 160 m. All tests were completed in June.

On June 12, 1929, the test crew, led by M. M. Gromov, made the 4,000 km flight Moscow-Odessa-Sevastopol-Kiev-Moscow.

In the first series, 12 aircraft were built. In production, the Titan engines were replaced with M-26 engines, but these proved too unreliable and were replaced with imported Wright Whirlwind engines. Two of these airplanes were used by Deruluft, starting from 1933 on the Berlin-Moscow service.

Mikhail Gromov accomplished a European round flight on the route Moscow – Travemünde – Berlin – Paris – Rome – Marseille – London – Paris – Berlin – Warsaw – Moscow with the Krylia Sovietov, which lasted from 10 July to 8 August 1929 and generated considerable publicity. It carried eight passengers over a distance of 9,037 km (5,615 mi), in 53 flying hours with an average speed of 177 km/h (110 mph).

In September 1930, testing of the Wright-powered version of the ANT-9 was completed. A few were used as executive transports for the Soviet Air Forces. A military variant with standard and retractable turrets was under construction, but was abandoned before trials began. An ambulance version was studied and considered, but never built. In 1932, GVF engineer Sergei Ivanovich Komarov proposed a modification of the ANT-9 wing to accommodate two M-17 engines, similar to what was done on the R-6. Production began in 1933 as the PS-9 (passazhirskiy samolot = passenger airplane). The number of aircraft built amounted to about 70 machines. Up to the beginning of the German invasion of the Soviet Union, they served as passenger or staff airplanes mainly on routes in Central Asia and the Caucasus. Afterwards they were used until 1943 as transportation and medical airplanes. One PS-9 was modified into a propaganda aircraft named Krokodil (Crocodile) with a reptile-like plywood nose.

Military operators

  • Soviet Union : Soviet Air Force.
  • Turkey : Turkish Air Force.

Civil operators

Accidents and incidents

On December 6, 1936, a Deruluft ANT-9, registration CCCP-D311, crashed near Moscow due to pilot error, killing nine of 14 on board.

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This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Tupolev ANT-9 of Wikipedia ( authors )

Tupolev ANT-9

  • Role : Airliner.
  • National origin : Soviet Union.
  • Manufacturer : Tupolev.
  • First flight : 5 May 1929.
  • Introduction : 1931.
  • Retired : 1945.
  • Primary user : Aeroflot.
  • Number built : ~100.
  • Developed into : Tupolev ANT-14.

    • Specifications (PS-9)

  • Crew : two.
  • Capacity : nine passengers.
  • Length : 17.01 m (55 ft 9⅔ in).
  • Height : 5 m (16 ft 4¾ in).
  • Wingspan : 23.85 m (78 ft 10 in).
  • Wing area : 84 m² (904 ft²).
  • Wing loading : 73.8 kg/m² (15.1 lb/ft²).
  • Empty weight : 4,400 kg (9,700 lb).
  • Loaded weight : 6,200 kg (13,668 lb).
  • Maximum speed : 215 km/h (117 kts, 134 mph).
  • Cruise speed : 180 km/h (97 kts, 112 mph).
  • Range : 700 km (378 nm, 435 mi).
  • Service ceiling : 5,100 m (16,732 ft).
  • Rate of climb : 2.8 m/s (550 ft/min).
  • Powerplant : Two Mikulin M-17 water-cooled V-12.
  • Power : 373 kW (500 hp) each.
  • Power/mass : 0.12 kW/kg (0.073 hp/lb).

— — — = = — — —

This text is available under the Creative Commons Attribution-ShareAlike License
Source : Article Tupolev ANT-9 of Wikipedia ( authors )
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