| Il-54 | |
|---|---|
| Three-quarter view of the second Il-54 prototype | |
| Role | Bomber |
| National origin | Soviet Union |
| Manufacturer | Ilyushin |
| First flight | 3 April 1955 |
| Number built | 2 |
The Il-54 was a transonic bomber developed in the USSR in the 1950s. Only two examples were built before the project was abandoned. The Council of Ministers issued a directive to OKB-115, for a transonic bomber prototype to be submitted for State Acceptance Trials in July 1954. The design of this bomber went through several stages before settling on the final configuration. The Il-54, as built, had a very thin 45 degree swept wing with anhedral, which was shoulder mounted on the fuselage. The Lyulka AL-7 engines were housed in slim, pylon mounted, pods at approximately 1/3 span. Because the wings and engine nacelles were too small to house a conventional undercarriage, the Il-54 used a bicycle undercarriage arrangement, with nose and main gear units on the centreline of the aircraft, at each end of the bomb bay. This arrangement meant a conventional rotating take-off would be impossible. To enable the Il-54 to take-off, in a reasonable runway length, the main gear knelt and the nose gear extended to give the ideal angle of incidence for take-off (10 degrees). Flight trials of the Il-54 commenced in April 1955 with test pilot Vladimir Kokkinaki at the helm. Difficult handling during the landing run was rectified by modifying the undercarriage.
Production of the Il-54 was not proceeded with, due to competition from Yak-25 derivatives, and the belief that manned aircraft would soon be replaced by missiles.
Booked to fly in the flypast at Tushino in 1956, the Il-54 was dropped from the flying programme. The aircraft was then shown to a US Military Delegation at Kubinka. The Delegation were told that the Il-54 was the Il-149 as part of a deception programme. As a result the Il-54 was given far more importance than it actually warranted, and was assigned the NATO reporting name ("Blowlamp") after it had ceased flying.
Variants[]
- Il-54T - Torpedo Bomber (project)
- Il-54U - Trainer (project)
- Il-54R - Photo-Reconnaissance (project)
Specifications (Il-54)[]
Data from Gordon, OKB Ilyushin: A History of the Design Bureau and its Aircraft
General characteristics
- Crew: 3
- Length: 28.963 m (95 ft 1/4 in)
- Wingspan: 17.65 m (57 ft 11 in)
- Wing area: 84.6 m2 (910.7 ft2)
- Empty weight: 26,505 kg (58.443 lb)
- Gross weight: 41,600 kg (91,728 lb)
- Powerplant: 2 × Lyulka AL-7 with water injection, 84.34 kN (18,960 lbf) thrust each
Performance
- Maximum speed: 1,100-1,150 km/h (683-715 mph)
- Maximum speed: Mach 1.15
- Range: 2,057 km (1,278 miles)
- Service ceiling: 13,630 m (44,720 ft)
- Rate of climb: 25.25 m/s (4,924 ft/min)
Armament
See also[]
Notes[]
References[]
- Gordon, Yefim; Komissarov, Dmitriy and Sergey (2004). OKB Ilyushin: A History of the Design Bureau and its Aircraft. London: Ian Allan. ISBN 1-85780-187-3.
External links[]
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Wikimedia Commons has media related to Ilyushin Il-54. |
- "Il-54, Il-149, S.V.Ilyushin 'Blowlamp'". Russian Aviation Museum. http://www.ctrl-c.liu.se/misc/ram/il-54.html. Retrieved 2008-10-26.
The original article can be found at Ilyushin Il-54 and the edit history here.