Beriev R-1

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R-1
Role Experimental flying boat
National origin Soviet Union
Manufacturer Beriev
First flight 30 May 1952
Status scrapped
Number built 1

The Beriev R-1 (known in-house as 'product R')[1] was the first Soviet turbojet-powered flying boat.

Design and development[edit]

At the end of World War II, design work began on a request from the Soviet Navy for a jet-powered flying boat. Starting with the wing design of the Be-6, Beriev began in-house design work in May 1947, even before the official specifications were issued in June 1948. The specifications called for a radar-equipped aircraft with a three-man crew, capable of a speed of 800 km/h, and with a range of 2000-2500 kilometers. The aircraft was to be armed with 2,000 kg of bombs and four 20 mm cannons.

Beriev completed a mock-up by 10 June 1950, using Klimov VK-1 engines instead of the originally planned Rolls-Royce Nene engines. The first prototype was completed in November 1951. However, the prototype experienced severe vibrations and hydrodynamic instability at 165 km/hr and was nearly destroyed in testing. After much modification, flight testing began at the end of 1951. The prototype crash landed on 3 October 1953 and was again repaired.

Extensive testing continued to 1956, however, the development of land-based long-range reconnaissance aircraft put the project into jeopardy. After another crash in February 1956, the R-1 was never repaired and subsequently scrapped.[2] The R designation is believed to have stood for Reaktivnyy (jet-propelled).[1] Experience gained during the test programme with the R-1 was used in the development of the Beriev Be-10.[3]



Specifications (R-1)[edit]

Data from Beriev's Jet Flying Boats[4]

General characteristics

  • Crew: 3, Pilot, navigator and gunner/radio operator
  • Length: 19.9 m (65 ft 3 in)
  • Wingspan: 20 m (65 ft 7 in)
  • Height: 7.1 m (23 ft 3 in)
  • Wing area: 58 sq m (624 sq ft)
  • Airfoil: NACA 23009
  • Useful load: 1,000 kg (2,205 lb)
  • Max. takeoff weight: 20,300 kg (44,760 lb)
  • Powerplant: 2 × Klimov VK-1 non-afterburning turbojets, 2,700 kgf (5,950 lbf) each

Performance

Armament

  • Guns: 2 forward-firing 23-mm Nudelman-Rikhter NR-23 cannons, 2 tail-mounted 23-mm Shpitalniy Sh-3 cannons.
  • Bombs: Maximum of 1,000 kg (2,205 lb) carried on underwing bomb racks.

See also[edit]

Related development
Related lists

References[edit]

Notes[edit]

  1. ^ a b Gordon, Sal'nikov and Zablotskiy 2006, p. 5.
  2. ^ Gordon, Sal'nikov and Zablotskiy 2006, p. 11.
  3. ^ Gordon, Sal'nikov and Zablotskiy 2006, p. 21.
  4. ^ Gordon, Sal'nikov and Zablotskiy 2006, pp. 5-20.

Bibliography[edit]

  • Yefim Gordon, Andrey Sal'nikov and Aleksandr Zablotskiy (2006) Beriev's Jet Flying Boats. Hinckley, UK: Midland Publishing. ISBN 1-85780-236-5