
	Where results make sense

Topic: Pitch drive

Related Topics

Breakthrough Propulsion Physics Program

Bias drive

Diametric drive

Alcubierre drive

Differential sail

In the News (Wed 30 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Spacecraft Propulsion @ LaunchBase.org (Launch Base) (Site not responding. Last check: 2007-11-01)
		Because the ion drive needs much less fuel, the total launched mass is usually lower, which typically results in a lower overall cost.
		For these drives it turns out that to a reasonable approximation fuel use, energetic efficiency and thrust are all inversely proportional to exhaust velocity.
		For changing the orientation of a satellite or other space vehicle, conservation of angular momentum does not pose a similar constraint.
	www.launchbase.org /encyclopedia/Spacecraft_Propulsion (3180 words)

	Encyclopedia :: encyclopedia : Spacecraft propulsion (Site not responding. Last check: 2007-11-01)
		This comes to an exhaust velocity of about 2/3 of the delta-v (see also the energy computed from the rocket equation).
		Drives such as VASIMR, and to a lesser extent other Ion thrusters have exhaust velocities that can be enormously higher than this ideal, and thus end up powersource limited and give very low thrust.
		Their very high exhaust velocity means they require huge amounts of energy and provide low thrust, but use hardly any fuel.
	www.hallencyclopedia.com /Spacecraft_propulsion (3264 words)

	line drive -- line drive (Site not responding. Last check: 2007-11-01)
		The term line drive describes any projectile with a trajectory that appears to be nearly a straight line, often parallel to the ground.
		DRIVE LINE The drive line on most rear wheel drive cars consists of a drive shaft from the transmission to the differential.
		Jet Drive Line Guard This cast aluminum 2-piece drive line guard is designed to attach to a aluminum bellhousing on a boat that uses a four...
	www.feliner.com /linedrive (3616 words)

	Encyclopedia Galactica - Bi - Human (Anglic) Revised 351st Edition
		reactionless drive, which causes a vehicle to alters the properties of space itself, such as the gravitational constant, G, to create a local propulsive gradient.
		By modifying Newton's constant to have a localized asymmetric bias, a local gradient similar to the
		Capable of operating in both the vacuum of space as well as in an atmosphere, bioships most often use a matter/antimatter reaction power source or drive sails (less often, GUT-drive, reactionless drive) along with an electrodynamic fluid circulatory system, and chemical or air breathing ramjet for atmospheric flight.
	www.orionsarm.com /eg/b/Bi.html (3341 words)

Try your search on: Qwika (all wikis)