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{|{{Infobox Aircraft Begin
{|{{Infobox Aircraft Begin
| name=Ye-150
| name=Ye-150
| image=
| image=File:avmigye150_3_05.png
| caption=
| caption=A plan view silhouette of the Ye-150
}}{{Infobox Aircraft Type
}}{{Infobox Aircraft Type
| type=Protoype [[Fighter aircraft|single-seat fighter]]
| type=Protoype [[Fighter aircraft|single-seat fighter]]

Revision as of 20:15, 16 January 2011

Ye-150
File:Avmigye150 3 05.png
A plan view silhouette of the Ye-150
Role Protoype single-seat fighter
National origin Soviet Union
Manufacturer Mikoyan-Gurevich
First flight 8 July 1960[1]
Number built 1
Developed from Mikoyan-Gurevich I-75
Variants Mikoyan-Gurevich Ye-152

The Mikoyan-Gurevich Ye-150 was a prototype Soviet single-seat fighter/interceptor, designed and built by Mikoyan-Gurevich in the Soviet Union from 1955.[1]

Design and development

To fulfil the needs of the PVO (Protivovozdushnaya Oborona – air defence forces) for a heavy interceptor to carry out automatic interceptions, the MiG bureau had developped a range of large fighter aircraft starting with the swept wing I-3 series (a.k.a. I-380, I-410 and I-420), followed by the I-75. The requirement for supersonic interception speed and the ability to carry the heavy avionic systems dictated the size;in comparison the contemporary MiG-21F (similar in layout), weighed 4,819kg (10,624lb) and was 15.76m (51ft 8-1/2in) long, compared with 12,345kg (27,215lb) and 18.14m (59ft 6in) respectively.[1]

The MAP (Ministerstvo Aviatsionnoy Promyshlennosti - ministry of aviation industry) ordered the Mikoyan OKB to build prototypes of a new interceptor armed with K-6, K-7, K-8 and K-9 air to air missile systems as well as unguided rockets and an aimable twin cannon installation; automatic guidance to interception points was to be provided by Urugan-5 (hurricane-5) integrated weapons systems. The initial version, designated Ye-150, produced in prototype form without armament and powered by a Tumansky R-15 afterburning turbojet, flew for the first time on 8 July 1960, after extensive ground checks of systems and a delay in delivery of the engine.[1]

Flight tests progressed slowly, hampered by the short life of the R-15 engine, which was barely sufficient for pre-flight ground checks and a single flight, as well as problems with aileron buffeting, brake parachute failure and the engine accessory gearbox disintegrating. Manufacturers flight tests, over 42 flights, revealed very high rates of climb, impressive maximum speed (M2.65 @ 19,100m (68,664ft) using less than full throttle), and a phenomenal service ceiling of at least 21,000m (68,900ft).[1]

Installation of weapons systems was not carried out and the Ye-150 was not authorised for production, but development continued with the Ye-151, and Ye-152.[1]

Ye-151

The Ye-151 was designed in parallel with the Ye-150 but did not proceed to the hardware stage. The weapon system was to have comprised of twin TKB-495 or TKB-539 cannon, with a rate of fire of 2,000 rds/min, mounted on a rotating ring in tilting mounts. The mounts could tilt ±30° and the mounting ring could rotate 360°, which gave the installation a 60° cone of fire around the centreline of the mounting ring. The inlet duct was lengthened with the rotating ring forming the inlet lip, wind tunnel testing confirming that the extended inlet duct would actually improve aerodynamic and inlet performance;the lengthened inlet was retained for all later Ye-150 series aircraft (sans cannon installation). Further tunnel testing with an inlet mounting fitted with cannon revealed de-stabilising forces when the cannon were deflected, making accurate weapon aiming impossible and precluding further development. Studies were carried out with the cannon mount aft of the cockpit, to reduce de-stabilising moment, as the Ye-151-2, with no hardware resulting.[1]

Specifications

Data from Gordon[1]

General characteristics

  • Length: 18.14 m (59 ft 6 in)
  • Wingspan: 8.488 m (27 ft 10 in)
  • Wing area: 34.615 m2 (372.59 sq ft)
  • Empty weight: 8,726 kg (19,238 lb)
  • Max takeoff weight: 12,435 kg (27,414 lb)
  • Powerplant: 1 × Tumansky R-15 turbojet, 66.7 kN (15,000 lbf) thrust dry, 99.6 kN (22,400 lbf) with afterburner

Performance

  • Maximum speed: 2,890 km/h (1,800 mph, 1,560 kn) @ 19100m (62660ft)
  • Maximum speed: Mach 2.65+
  • Range: 1,500 km (930 mi, 810 nmi)
  • Service ceiling: 23,250 m (76,280 ft)
  • Rate of climb: 70.1 m/s (13,800 ft/min) to 20000m (65620ft)
  • Time to altitude: 4.5min to 20000m (65620ft)

Armament

  • Guns: (Ye-151) 2x TKB-495 or TKB-539 cannon in an aimable mount
  • Missiles: (proposed) 2xK-7S or 2xK-6 or 2xK-9 Air to Air Missiles

Avionics

See also

Aircraft of comparable role, configuration, and era MiG I-75F

References

Notes

  1. ^ a b c d e f g h Gordon, Yefim. Soviet Heavy Interceptors”. Hinkley, Midland. 2004. ISBN 1 85780 191 1

Bibliography

  • Nemecek, Vaclav (1986). The History of Soviet Aircraft from 1918. London: Willow Books. ISBN 0-00-218033-2.
  • Gordon, Yefim. Soviet Heavy Interceptors”. Hinkley, Midland. 2004. ISBN 1 85780 191 1
  • Gunston, Bill. “The Osprey Encyclopaedia of Russian Aircraft 1875 – 1995”. London, Osprey. 1995. ISBN 1 85532 405 9
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