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XLR50
Vanguard rocket engines: rear, GE's first-stage engine; foreground, Aerojet General's second-stage engine.
Country of origin United States Date 1957 Manufacturer General Electric Application First stage Associated LV Vanguard Predecessor General Electric Hermes A-3B Status Retired Propellant LOX / RP-1 Cycle Gas-generator Chamber 1 Nozzle ratio 5.5 Thrust, vacuum 134.8 kN (30,300 lb f Thrust, sea-level 123.8 kN (27,800 lb f Chamber pressure 4.2 MPa (610 psi) Specific impulse , vacuum270 s (2.6 km/s) Specific impulse , sea-level248 s (2.43 km/s) Burn time 145 seconds Diameter 1.14 m (3 ft 9 in ) Dry mass 191 kg (421 lb ) Vanguard first stageReferences [1] [2]
The XLR50 was a pump-fed liquid-propellant rocket engine burning RP-1 and LOX in a gas generator cycle developed by General Electric .[3] first stage of the Vanguard rockets on the Vanguard project . As was common to engines based on the V-2 experience, the turbine was driven by steam generated by catalytic decomposition of H 2 O 2 regeneratively cooled.[3] [4] gimbaled to supply thrust vectoring . Also, the exhaust gases of the turbine were ducted to dual auxiliary nozzles that acted as verniers to enable roll control of the rocket.[3]
When the Vanguard rocket was selected as the first orbital launch vehicle for the US, Martin Company got the contract as prime contractor. Given the required thrust levels, the Viking propulsion (the Reaction Motors XLR10 ) was deemed insufficient, and instead, the General Electric proposal, based on the experience gained in the Hermes program , was considered more fitting and a less risky choice than Reaction Motors next project.[5] [6] [5]
While the first two Vanguard flight, (TV-0 and TV-1 ), used Viking first stages, twelve X-405 were built and eleven flew on Vanguard rockets.
References
[ edit ]
^ Bille, Matt; Lishock, Erika (2004). "5 — The Trials of Project Vanguard". The First Space Race: Launching the World's First Satellites Texas A&M University Press . p. 94. ISBN 9781585443741 . Retrieved 2015-06-24 .
^ a b c McLaughlin Green, Constance; Lomask, Milton (1970). "Chapter 5 — Battle Over Vehicle Specifications". Vanguard: A History (NASA SP-4202) NASA . Retrieved 2015-06-24 .
^ Winter, Frank H. (1990). "3 — Rockets Enter the Space Age". Rockets Into Space Harvard University Press . p. 71 . Retrieved 2015-06-24 .
^ a b McLaughlin Green, Constance; Lomask, Milton (1970). "Chapter 4 — Getting the Launch Program Started". Vanguard: A History (NASA SP-4202) NASA . Retrieved 2015-06-24 .
^ "Hydrogen Peroxide - Propulsion & Power History: US - General Electric (1944 - 1966)" . Whiskey Yankee LLC. Retrieved 2015-06-24 .
Further reading
[ edit ]
t
e
Liquid
Cryogenic
Hydrolox LH 2 LOX )
China
Europe
India
Japan
Russia
USA
Methalox CH 4 LOX )
Semi-
Kerolox RP-1 / LOX )
China
India
Russia
NK-15
NK-33, 44
RD-58
RD-0105, 0109
RD-0107, 0108, 0110
RD-0110R
RD-0124
RD-107, 108, 117, 118
RD-120
RD-170, 171
RD-180
RD-191, 151, 181
RD-193
S1.5400
Spain
Ukraine
USA
Storable
Hypergolic (Aerozine , UH 25 , MMH , or UDMH N 2 O 4 MON , or HNO3 )
China
Europe
India
Israel
North Korea
Russia
17D61
RD-0202 to 0206, 0208 to 0213
RD-0207, 0214
RD-0216, 0217, 0235
RD-0233, 0234
RD-0236
RD-0237
RD-0243 to 0245
RD-0255 to 0257
RD-215 to 219
RD-250 to 252, 261, 262
RD-253, 275
RD-263, 268, 273
RD-270
S5.92
S5.98M
Ukraine
USA
Other
Solid
China
Europe
India
Iran
Israel
Japan
USA
* Different versions of the engine use different propellant combinations
Engines in italics are under development
t
e
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=XLR50&oldid=1234533072 " C a t e g o r i e s : ● R o c k e t e n g i n e s u s i n g t h e g a s - g e n e r a t o r c y c l e ● R o c k e t e n g i n e s u s i n g k e r o s e n e p r o p e l l a n t ● O u t e r s p a c e s t u b s H i d d e n c a t e g o r y : ● A l l s t u b a r t i c l e s
● T h i s p a g e w a s l a s t e d i t e d o n 1 4 J u l y 2 0 2 4 , a t 2 1 : 1 1 ( U T C ) . ● T e x t i s a v a i l a b l e u n d e r t h e C r e a t i v e C o m m o n s A t t r i b u t i o n - S h a r e A l i k e L i c e n s e 4 . 0 ;
a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n . ● P r i v a c y p o l i c y ● A b o u t W i k i p e d i a ● D i s c l a i m e r s ● C o n t a c t W i k i p e d i a ● C o d e o f C o n d u c t ● D e v e l o p e r s ● S t a t i s t i c s ● C o o k i e s t a t e m e n t ● M o b i l e v i e w
United States
