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for testing, where several parts for the engines including nine exhaust cones were already completed. In
December 1944, the RLM issued an order to Junkers calling for the firm to cease development on the 109-012, and further design work was moved to several other firms. By the end of the war, only
100:
requested
Junkers to build a much larger engine capable of powering the heavy jet bombers then under development for the Luftwaffe. Initially, Junkers proposed modifications of the Jumo 004, specifically the 109-004G and 109-004H. However, these variants were rejected as they were not powerful
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system should be installed after the fifth compressor stage to supply compressed air, if needed. The RLM ordered ten pre-production examples of the 109-012 to be built at
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The engine was to feature an 11-stage axial compressor enclosed in a sheet-steel casing and a 2-stage, air-cooled turbine. It was proposed that a
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An episode of The
Antiques Roadshow filmed at Powis Castle in summer 2022 featured a blueprint of the Junkers 0-12.
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The Race for Hitler's X-Planes: Britain's 1945 Mission to
Capture Secret Luftwaffe Technology
76:(the Jumo 004 had already reached serial production by 1944). It was intended to power the
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World
Encyclopedia of Aero Engines: From the Pioneers to the Present Day
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had entered serial production, the
Technical Department of the
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German Jet Engine and Gas
Turbine Development 1930–1945
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101:enough, and Junkers began to design the 109-012.
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72:. In essence, it was a scaled up version of the
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366:. Vol. 1. Ramsbury: The Crowood Press.
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364:Turbojet History and Development 1930–1960
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345:Junkers Aircraft & Engines 1913–1945
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347:. London: Putnam Aeronautical Books.
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309:(5th ed.). Stroud, UK: Sutton.
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575:(Junkers design built by Heinkel)
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64:, known colloquially post-war as
113:one mock-up had been completed.
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618:jet/rocket engine designations
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1:
290:. Stroud, UK: History Press.
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286:Christopher, John (2013).
206:27.3 kN (2780 kgf/6135 lb)
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21:
909:Junkers aircraft engines
362:Kay, Anthony L. (2007).
324:Kay, Anthony L. (2002).
256:
251:List of aircraft engines
127:General characteristics
904:1940s turbojet engines
305:Gunston, Bill (2006).
211:Thrust-to-weight ratio
16:German turbojet engine
328:. The Crowood Press.
343:Kay, Antony (2004).
80:and variants of the
62:Junkers Jumo 109-012
614:Reich Air Ministry
233:Comparable engines
220:In popular culture
48:Major applications
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373:978-1-86126-912-6
297:978-0-7524-6457-2
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194:Performance
166:Compressor:
153:Dry weight:
88:Development
898:Categories
273:Kay, p. 89
180:8 can-type
176:Combustors
160:Components
92:After the
571:See also
554:Turboprop
168:11-stage
147:Diameter:
122:Data from
106:bleed air
533:Turbojet
228:See also
200:Maximum
189:2 stages
136:Turbojet
94:Jumo 004
74:Jumo 004
66:Jumo 012
31:Turbojet
616:(RLM)
185:Turbine
141:Length:
41:Junkers
573:HeS 30
370:
351:
332:
313:
294:
202:thrust
155:2000kg
110:Dessau
82:Ju 287
78:EF 132
257:Notes
149:1.06m
143:4.86m
133:Type:
27:Type
368:ISBN
349:ISBN
330:ISBN
311:ISBN
292:ISBN
215:1.39
60:The
883:739
878:729
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98:RLM
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449:L8
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434:L2
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