- Kestrel (rocket engine)
infobox rocket engine
fuel=RP-1 rocket grade
specific_impulse_vacuum= 317 s (3.1 km/s)
references = [ cite news |url=http://www.spacex.com/Falcon1UsersGuide.pdf |title=Falcon 1 Users Guide |date=
2008-09-28|publisher=SpaceX] The Kestrel engine is an RP-1/ liquid oxygenpressure-fed rocket engine. The Kestrel engine was developed by SpaceXfor upper stage use on the Falcon 1rocket.
Kestrel was built around the same pintle architecture as the Space X Merlin engine but does not have a
turbo-pumpand is fed only by tank pressure.
Kestrel is ablatively cooled in the chamber and throat and radiatively cooled in the nozzle, which is fabricated from a high strength
niobiumalloy. As a metal, niobium is highly resistant to cracking compared to carbon-carbon. According to SpaceX, an impact from orbital debris or during stage separation might dent the metal but have no meaningful effect on engine performance. [ cite news |url=http://www.spacedaily.com/reports/SpaceX_Confirms_Stage_Bump_On_Demoflight_2_999.html | title=SpaceX Confirms Stage Bump On Demoflight 2 | author = Greg Zsidisin | date = 23 March 2007 | publisher = Space Daily |accessdate=2008-09-30] Heliumpressurant efficiency is substantially increased via a titanium heat exchanger on the ablative/niobium boundary. [cite web |url=http://www.spacex.com/SpaceX_F1-003_PressKit.pdf |publisher=SpaceX |title=Falcon 1 Flight Three Press Kit |accessdate=2008-09-30]
Thrust vector control is provided by electro-mechanical actuators on the engine dome for pitch and yaw. Roll control (and attitude control during coast phases) is provided by helium
cold gas thrusters.
A TEA-TEB pyrophoric system is used to provide multiple restart capability on the upper stage. In a multi-manifested mission, this allows for drop off at different altitudes and inclinations.
Enhancements to the design of the original Kestrel engine are planned. Changes will include tighter tolerances to improve consistency, higher Isp, and lighter weight. [cite web
last = Bergin
first = Chris
coauthors = Braddock Gaskill
title = Elon Musk Q and A - Updates SpaceX status on Falcon and Dragon
publisher = NASAspaceflight.com
date = 2007-09-24
url = http://www.nasaspaceflight.com/content/?cid=5237
accessdate = 2008-06-16]
Merlin (rocket engine)
* [http://www.spacex.com/falcon1.php#kestrel_engine SpaceX Falcon engines page]
Wikimedia Foundation. 2010.
Look at other dictionaries:
Rocket engine — RS 68 being tested at NASA s Stennis Space Center. The nearly transparent exhaust is due to this engine s exhaust being mostly superheated steam (water vapor from its propellants, hydrogen and oxygen) … Wikipedia
Merlin (rocket engine) — Merlin 1C SpaceX Merlin 1A (shown) Country of origin United States Manufacturer SpaceX Liq … Wikipedia
Draco (rocket engine) — Draco Country of origin United States Manufacturer SpaceX Liquid fueled engine Propellant nitrogen tetroxide / monomethyl hydrazine … Wikipedia
Cryogenic rocket engine — Vulcain engine of Ariane 5 rocket … Wikipedia
Kestrel (disambiguation) — A kestrel is a type of bird see KestrelKestrel may also refer to:Aerospace and aviation* Hawker Siddeley Kestrel the prototypes of the Hawker Siddeley Harrier aircraft. *a fibreglass glider, in 17 and 19m wingspan versions, manufactured by… … Wikipedia
Kestrel (moteur-fusée) — Pour les articles homonymes, voir Kestrel. Kestrel 2 SpaceX Kestrel Pays d origine États Unis … Wikipédia en Français
Kestrel engine — Engines named Kestrel include a* Aircraft piston engine, built by Rolls Royce * Rocket engine built by SpaceX … Wikipedia
Liquid rocket — A liquid rocket is a rocket with an engine that uses propellants in liquid form. Liquids are desirable because their reasonably high density allows the volume and hence the mass of the tanks to be relatively low, resulting in a high mass ratio.… … Wikipedia
Pressure-fed cycle (rocket) — The pressure fed cycle is a class of rocket engine designs. A separate gas supply, usually helium, pressurizes the propellant tanks to force fuel and oxidizer to the combustion chamber. To maintain adequate flow, the tank pressures must exceed… … Wikipedia
Black Knight (rocket) — Infobox rocket imsize = 182 caption = Black Knight BK02 cpl year = 1965 cpl = name = Black Knight function = Vehicle for re entry studies manufacturer = Saunders Roe country origin = United Kingdom height = 10.2 11.6 m alt height = diameter =… … Wikipedia