propulsion system


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Related to propulsion system: propeller

propulsion system

[prə′pəl·shən ‚sis·təm]
(mechanical engineering)
For a vehicle moving in a fluid medium, such as an airplane or ship, a system that produces a required change in momentum in the vehicle by changing the velocity of the air or water passing through the propulsive device or engine; in the case of a rocket-propelled vehicle operating without a fluid medium, the required momentum change is produced by using up some of the propulsive device's own mass, called the propellant.
References in periodicals archive ?
During the tests, specialists from the Salyut Design Bureau (a subdivision of Khrunichev Space Center) performed comprehensive checks of the propulsion system components on a test stand.
The technology has zero erosion characteristics, thus, increasing the on-orbit lifespan required for a propulsion system.
The first flight of our propulsion system is a milestone on the road to electrification of aviation," said Siemens chief technology officer Siegfried Russwurm.
Delivery of the first propulsion system will now allow a rigorous bench testing program to commence which will be followed by flight testing.
The enlargement of mobile robot application area requires the development of new propulsion systems.
We are pleased that these international automotive suppliers have selected UQM propulsion systems for use in their hybrid electric vehicle development activities," said UQM president and CEO William Rankin.
Pratt & Whitney's F135 propulsion system is expected to enter production in 2007.
Although they did not determine culpability, the review boards concluded that propulsion systems like Landsat 6's require more extensive testing than the satellite had received.
NYSE Amex: UQM) announces the introduction of its most powerful electric propulsion system ever: the PowerPhase HD([R]) 220 electric propulsion system.
Retrofit solutions tailored to the specific system ensure that the VSP is updated to the latest state of technology, thus increasing energy efficiency and decreasing the environmental impact of the propulsion system.
The propulsion system will reportedly support airframe and engine interface evaluations for the first STOVL flight test aircraft, scheduled for its initial flight in May 2008.
Lockheed Martin's X-35B has completed hover-pit testing of its short- takeoff/vertical landing (STOVL) propulsion system, while Boeing's X-32B has wrapped up its final STOVL engine runs.