446:: Version for the Messerschmitt Me 163B-1a. Weighing only 100 kg (220 lb) complete, this engine consisted of two main assemblies, the roughly-cubical shape framed forward assembly comprising the turbine housing, the fuel pumps geared to the turbine shaft, the control box, a pressure-reducing valve and the electric starter motor, with the aft assembly made up of the combustion chamber, connected to the fore unit by a cylindrical "thrust-tube" containing pipes which carried fuel to the combustion chamber's individual injector jets. The thrust was adjustable between 200 kp (2 kN (450 lbf)) and a maximum of 1700 kp (16.7 kN (3,800 lbf)).
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chamber adjustable between 100 kp (1 kN (220 lbf)) and 2000 kp (19.6 kN (4,400 lbf)). Fully restored examples of both the Me 163B's single-chamber rocket motor, as well as the only known example — stated as the third prototype example — in the United States of the experimental twin-chamber Walter "509B" rocket motor, are each on display in front, one each to either side of the
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original combustion chamber was removed, and throttling was instead provided by turning the main engine on and off. This new version dramatically improved cruise endurance, with overall flight times improving from eight to twelve minutes, a 50% improvement. It was also mechanically simpler as the turbopumps were no longer throttled.
325:. This fuel tended to clog the jets in the combustion chamber, causing fluctuations in power and potentially explosions. Worse, however, was the fact that the engine could not be throttled, and when the aircraft leveled off after its climb to altitude it quickly accelerated to speeds that caused serious
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cruise chamber design directly below the main chamber, with an additional thrust of 300 kp (2.9 kN (650 lbf)). This auxiliary chamber proved necessary due to the actual T-Stoff oxidizer consumption of the main unit, at nearly 5 kg/s, exceeding estimates by 100%. Thrust from main
406:
chamber, tuned to provide the cruise power needed for high-speed level flight, about 400 kilograms-force (3,900 N; 880 lbf). This chamber provided that power at peak efficiency, so it did not suffer from the problems found while throttling on the original models. The throttle on the
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on contact. The violent combustion process resulted in the formation of water, carbon dioxide and nitrogen, and a huge amount of heat sending out a superheated stream of steam, nitrogen and air that was drawn in through the hole in the mantle of the engine, thus providing a forward thrust of
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chamber with a differing forward shape from that on the 509B, while also discarding the open-structure cubical frame for lighter weight. The main combustion chamber gave between 400 kp (3.9 kN (880 lbf)) and 2000 kp (19.6 kN (4,400 lbf)), the
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436:: The first series production engine was used in the Messerschmitt Me 163 B from August 1944. The thrust here was adjustable between 100 kp (1 kN) and 1600 kp (15.7 kN (3,500 lbf)).
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The engine was an integral design with all components of the drive, with the exception of fuel tanks, locked in a cubical frame — this frame was discarded for the 109-509C dual-chamber design.
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The ultimate solution to the throttling problem was the B and C series of the engine. These engines used two combustion chambers, the original one (retroactively given
426:: Pre-production model, manufactured from May 1943. The thrust of this engine was regulated between 300 kp (2.9 kN) and 1500 kp (14.7 kN (3,300 lbf)).
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An early Walter HWK 109-509A-1 rocket motor, believed to be one of the best preserved in existence and possibly used for instructional purposes. The cockpit of the
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to the point that it did not extend the endurance of the aircraft as expected. This version was put into the Me 163B in spite of this problem.
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with two settings. The pumps were driven by a single turbine, powered by steam created by decomposing the T-Stoff with a wire mesh
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Early versions of the Me 163 had been powered by an earlier design running on a "cold engine" fueled with
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467:: Increased performance version of the 509 A-1. This engine was the initial version to feature the twin
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494:: Dual-chamber motor like the B-series, based on the uprated version of the 509 A-2, but having a main
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The
Hellmuth Walter Rocket Engine sitepage, on the RAF Museum/Cosford-preserved 109-509C rocket motor
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A completely revised lightened version for use as a permanently installed booster rocket on the
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that gave off significant heat and was thus known as the "hot engine". C-Stoff was a mix of 30%
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The
Hellmuth Walter Rocket Engine sitepage, on the NMUSAF-preserved 509B rocket motor
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Natter: Manned
Missile of the Third Reich: Historic Step to Human Spaceflight
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521:: Variant of the 509 C-1 for use in the improved B-series airframes of the
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auxiliary chamber 400 kp (3.9 kN (880 lbf)). To be used in the
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During this period Walter had also been working with a new fuel known as
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provides insufficient context for those unfamiliar with the subject
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555:- Company designation for prototype engines of the 509A-2 series
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Rocket engines using hot cycle hydrogen peroxide propellant
289:(HWK) commencing in 1943, with licensed production by the
507:(Ju 248). One surviving example on museum display at the
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To address the throttling issue, the new engine included
1699:. If you have a source, you can help Knowledge (XXG) by
1700:
768:
List of aircraft engines of
Germany during World War II
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demanded that a version be developed with a throttle.
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The HWK 509B dual-chamber version, on display at the
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photos of the preserved UK-housed 509C rocket motor
705:(hydrazine hydrate/alcohol mix) fuel propellants
918:National Museum of the United States Air Force™
894:National Museum of the United States Air Force™
864:National Museum of the United States Air Force™
994:. Rundle Mall, Australia: Brett Gooden, 2019.
841:Botho StĂĽwe, Peene MĂĽnde West, Weltbildverlag
824:Botho StĂĽwe, Peene MĂĽnde West, Weltbildverlag
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612:National Museum of the United States Air Force
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1735:Rocket engines using the gas-generator cycle
484:(serial number) 191 095 on its vertical fin.
373:approximately 17 kN (3,820 lbf).
53:Learn how and when to remove these messages
1725:Rocket engines using hypergolic propellant
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1526:Aviation rocket engines and rocket motors
183:Learn how and when to remove this message
165:Learn how and when to remove this message
110:Learn how and when to remove this message
1005:Jane's Fighting Aircraft of World War II
73:This article includes a list of general
1035:Walter 109-509B rocket motor photo-page
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1007:. London. Studio Editions Ltd, 1989.
471:main chamber above, and lower thrust
287:Hellmuth Walter Kommanditgesellschaft
235:Hellmuth Walter Kommanditgesellschaft
147:providing more context for the reader
7:
948:from the original on 4 November 2013
364:, consisted of an 80%-concentration
806:from the original on 23 August 2016
16:1940s German aircraft rocket engine
402:chamber directly beneath the main
79:it lacks sufficient corresponding
14:
1025:The Hellmuth Walter Rocket Engine
701:(Hydrogen peroxide) oxidizer and
340:HWK 109-509 A-1 Rocket Engine at
34:This article has multiple issues.
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870:from the original on 18 May 2017
743:Thrust specific fuel consumption
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126:
64:
23:
967:Komet engine at the Cosmosphere
636:Luftwaffenmuseum der Bundeswehr
212:HWK 109-509A on display at the
42:or discuss these issues on the
1220:jet/rocket engine designations
509:Royal Air Force Museum Cosford
1:
674:Liquid-fuelled rocket engine
601:prototype evaluation designs.
480:'s restored Me 163B, bearing
285:aircraft. It was produced by
368:-based formulation. The two
1576:Armstrong Siddeley Screamer
1099:RI-201 "Cold" Take Off Pack
1040:The NMUSAF page on the 509B
747:20 lb/hr/lbf (1800 N-s/kg)
342:Steven F. Udvar-Hazy Center
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1581:Armstrong Siddeley Snarler
1104:RI-203 "Hot" Take Off Pack
914:"Walter HWK 509B-1 Rocket"
279:Messerschmitt Me 163 Komet
1094:
796:"Shuttleworth Collection"
626:National Museum of Flight
549:home defence interceptor.
398:), and a second, smaller
313:is a mockup. (Image from
270:was a German liquid-fuel
211:
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197:
1669:Rocket assisted take off
1659:List of aircraft engines
890:"Walter HWK 509A Rocket"
860:"Walter HWK 509A Rocket"
763:List of aircraft engines
646:Ballarat Aviation Museum
216:, Berlin-Gatow, Germany
1720:Aircraft rocket engines
1664:List of rocket aircraft
1561:Bristol Siddeley BS.605
832:, 1998 page 220, German
666:General characteristics
641:Shuttleworth Collection
315:Shuttleworth Collection
94:more precise citations.
1638:Type 4 Mark 1 Model 20
456:
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301:Design and development
1174:Me.109 Climb Assister
942:www.walterwerke.co.uk
938:"RAF Museum, Cosford"
800:www.walterwerke.co.uk
652:Specifications (509A)
451:
339:
308:
293:firm's facilities in
1566:de Havilland Spectre
849:, 1998 Seite 221+222
733:14.7 kN (3,300 lbf)
616:single-chamber 509 A
595:Messerschmitt Me 262
590:Messerschmitt Me 163
544:Messerschmitt Me 262
255:Messerschmitt Me 163
1571:de Havilland Sprite
977:Jane's 1989. p.285.
143:improve the article
1730:HWK rocket engines
1601:Walter HWK 109-509
1596:Dushkin D-1-A-1100
1216:Reich Air Ministry
692:165.5 kg (365 lb)
620:twin-chamber 509 B
606:Engines on display
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268:Walter HWK 109-509
250:Major applications
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1169:HeimatschĂĽtzer IV
866:. 21 April 2015.
547:HeimatschĂĽtzer IV
370:reacted violently
366:hydrogen peroxide
354:hydrazine hydrate
277:that powered the
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1088:aero engines
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985:Bibliography
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950:. Retrieved
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155:October 2021
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141:Please help
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100:October 2021
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36:Please help
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1701:adding them
1533:Liquid fuel
1159:HWK 109-739
1154:HWK 109-729
1149:HWK 109-719
1144:HWK 109-559
1139:HWK 109-509
1134:HWK 109-507
1129:HWK 109-502
1124:HWK 109-501
1119:HWK 109-500
722:Performance
690:Dry weight:
631:Cosmosphere
581:Focke-Wulf
553:HWK RII-211
297:, Austria.
92:introducing
1714:Categories
923:2021-10-07
899:2021-10-07
774:References
737:Burn time:
710:Components
583:Volksjäger
501:Marschofen
482:Werknummer
473:Marschofen
400:Marschofen
378:turbopumps
241:First run
75:references
39:improve it
952:7 October
874:7 October
810:7 October
684:Diameter:
657:Data from
622:versions)
530:empennage
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404:Hauptofen
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393:the name
45:talk page
946:Archived
868:Archived
804:Archived
752:See also
414:Variants
382:catalyst
358:methanol
198:HWK 509
1546:XR-4K14
1218:(RLM)
1114:RII-211
1109:RII-203
703:C-Stoff
699:T-Stoff
678:Length:
576:DFS 228
538:509 S-2
517:509 D-1
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463:509 B-1
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422:509 A-0
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291:Heinkel
88:improve
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660:Jane's
614:(both
597:C, in
526:Natter
505:Me 263
478:NMUSAF
454:NMUSAF
356:, 57%
77:, but
1691:This
1556:XLR99
1551:XLR11
779:Notes
696:Fuel:
686:8 in
672:Type:
317:, UK)
244:1943
221:Type
1047:and
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