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with the goal of increasing thrust and airflow, using a new six-stage compressor with a larger diameter and different rotor blades than its predecessor as well as a new afterburner chamber and variable exhaust nozzle. The increased pressure ratio and turbine inlet temperature required components to
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survived the ejection at Mach 1.78, but he never fully recovered. Shortly afterward the Ye-8 program was cancelled along with R-21 development in favour of heavier fighter planes such as the
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be fabricated from advanced alloys. Several contemporary Soviet aircraft were planned to use the R-21, including the
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136:. On September 11, 1962 an R-21, fitted to a Ye-8, exploded in mid-air after compressor failure; test pilot
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engine of the 1960s. Used for development only, the project was canceled.
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R-21 was developed at
Tushino motor plant (part of OKB-300), headed by
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Interview with Georgy
Mosolov in Air & Space magazine
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119:afterburning turbojet. It was based on the
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286:Ye-8 development history on Airwar.ru
230:80.6 kN (15,873 lbf) with afterburner
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113:Nikolai Georgievich Metskhvarishvili
227:46.1 kN (10,361 lbf) military power
153:R-21F-300 – the only version built.
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239:3.76; 5.76 with afterburner.
27:1960s Soviet turbojet engine
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158:Specifications (R-21F-300)
449:Tumansky aircraft engines
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267:List of aircraft engines
163:General characteristics
142:Mikoyan-Gurevich MiG-23
454:1960s turbojet engines
235:Thrust-to-weight ratio
103:Design and development
134:Mikoyan-Gurevich Ye-8
72:Mikoyan-Gurevich Ye-8
249:Related development
191:1,250 kg (2,755 lb)
115:, as a twin-spool
67:Major applications
18:Tumansky R-21F-300
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16:(Redirected from
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339:aircraft engines
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206:axial compressor
185:987 mm (38.9 in)
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95:was a Soviet
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212:Performance
202:Compressor:
189:Dry weight:
126:Sukhoi T-58
443:Categories
273:References
204:Six-stage
196:Components
130:Sukhoi T-6
117:axial-flow
58:First run
183:Diameter:
336:Tumansky
244:See also
218:Maximum
173:turbojet
148:Variants
132:and the
109:Tumansky
97:turbojet
52:Tumansky
42:Turbojet
178:Length:
220:thrust
398:RD-10
169:Type:
61:1960
38:Type
33:R-21
428:R-29
423:R-25
418:R-21
413:R-15
408:R-13
403:R-11
393:RD-9
375:M-90
370:M-88
365:M-87
360:M-86
355:M-85
107:The
91:The
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