Arcjet rocket Articles on aviation - Aerospace Engineering
airports worldwide
Other aviation articles
Airport photos
Aircraft photos
Spacecraft photos
Earth from airplane
Earth from space
Airports worldwide
Advertise for free!
Arcjet rocket

By Wikipedia,
the free encyclopedia,


An arcjet rocket or arcjet thruster is a form of electrically powered spacecraft propulsion, in which an electrical discharge (arc) is created in a flow of propellant (typically hydrazine or ammonia). This imparts additional energy to the propellant, so that one can extract more work out of each kilogram of propellant, at the expense of increased power consumption and (usually) higher cost. Also, the thrust levels available from typically used arcjet engines are very low compared with chemical engines.

When the energy is available, arcjets are well suited to keeping stations in orbit and can replace monopropellant rockets.

Aerojet MR-510 series arcjet engines are currently used on Lockheed Martin A2100 satellites using hydrazine as a propellant, providing over 585s average specific impulse at 2 kW.

In Germany, researchers at the University of Stuttgart’s Institute of Space Aviation Systems have been looking into these challenges for years and have developed various hydrogen-powered arcjet engines capable of power outputs from 1 to 100 kW. The heated hydrogen reaches exit speeds of 16 kilometres per second (9.9 mi/s). An arcjet-propelled test satellite by the name of Baden-Württemberg 1 (BW1) was scheduled to go to the Moon by 2010. No such launch has yet occurred. Baden-Württemberg 1 would have used polytetrafluoroethylene PTFE propellant.

Text from Wikipedia is available under the Creative Commons Attribution/Share-Alike License; additional terms may apply.

Published in April 2019.


Please see some ads intermixed with other content from this site:

christianity portal
directory of hotels worldwide

Copyright 2004-2021 © by, Vyshenskoho st. 36, Lviv 79010, Ukraine
Legal Disclaimer