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| In 1954, the MiG OKB began to investigate the potential
of a mixed-power, short-range point defence interceptor
as a variation of the Ye-2, the result being designated
Ye-50. Designed around a Tumansky AM-9Ye
(RD-9Ye) turbojet with an afterburning thrust of
3800kg and a Dushkin S-155 bi-fuel rocket
motor of 1300kg, the first of three prototypes,
the Ye-50/1, flew on 9 January 1956. It began trials with the rocket motor on 8 June 1956. A year later,
on 17 June 1957, the second prototype, the Ye-50/2,
attained a speed of Mach=2.33 and an altitude of
25600m. The Ye-50/2 introduced some
modifications to the rear fuselage and vertical tail, and
the Ye-50/3 featured a lengthened fuselage nose and
increased internal fuel. This last prototype was lost
during flight test when its vertical tail detached. The
Gor'kiy factory was ordered to build a batch of 20 aircraft,
which, powered by the AM-11 engine and S-155
rocket, were to be designated Ye-50A. These were intended
for operational evaluation, but none of them
was built owing to a lack of rocket motors, the Dushkin
OKB having meanwhile closed down.
| MODEL | Ye-50/1 |
| WEIGHTS |
| Take-off weight | 8500 kg | 18739 lb |
| DIMENSIONS |
| Wingspan | 8.11 m | 27 ft 7 in |
| Length | 13.62 m | 45 ft 8 in |
| Height | 21.00 m | 69 ft 11 in |
| PERFORMANCE |
| Max. speed | 2460 km/h | 1529 mph |
| Ceiling | 23000 m | 75450 ft |
| Range | 450 km | 280 miles |
| Grant Hartlage, e-mail, 13.12.2017 19:56 Do you have any information about the mass of the rocket engine and its associated tankage? I would like to see if an R-5 first stage and a Mikoyan /Gurevich Ye-50 rocket powerplant second stage could put small satellites into orbit, as part of an alternate history. I have the rocket's specific impulse, thrust, and burn time, which is everything else I need to know. reply |
| Bj, e-mail, 22.03.2011 21:24 no reply |
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Grant Hartlage
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