FACTOID # 22: South Dakota has the highest employment ratio in America, but the lowest median earnings of full-time male employees.
 Home   Encyclopedia   Statistics   States A-Z   Flags   Maps   FAQ   About 


FACTS & STATISTICS    Advanced view

Search encyclopedia, statistics and forums:



(* = Graphable)



Encyclopedia > Flameout

A compressor stall is either of two failure modes of an axial flow jet engine caused by a stall of the vanes of the compressor rotor. All compressor stalls result in a loss of engine power. A stall which causes complete engine shutdown is called a flameout. A Pratt and Whitney turbofan engine for the F-15 Eagle is tested at Robins Air Force Base, Georgia, USA. The tunnel behind the engine muffles noise and allows exhaust to escape. ... A stall is a (usually undesired) condition in aerodynamics and aviation where there is a sudden loss of lift. ... Compressor has several meanings: A gas compressor is a mechanical device that takes in a gas and increases its pressure by squeezing a volume of it into a smaller volume. ...

The first, less severe type of stall, the "axis-symmetric stall", is a straightforward expulsion of air out the intake due to the compressor's inability to maintain pressure on the combustion chamber.

In the second, more-severe "rotational stall", the air flow disruption of the stall causes standing pockets of air to rotate within the compressor without moving along the axis. Without fresh air from the intake passing over the stalled compressor vanes they overheat, causing accelerated engine wear and possible damage.

The most likely cause of a compressor stall is a sudden change in the pressure differential between the intake and combustion chamber. Jet aircraft pilots must take this into account when dropping airspeed or increasing throttle.

  Results from FactBites:
Flameout - Wikipedia, the free encyclopedia (272 words)
A flameout refers to the failure of a jet engine caused by the extinction of the flame in the combustion chamber.
Flameouts occur most frequently when the engine is at an intermediate or low power setting (such as during the cruise and descent phases of flight).
In the film Top Gun, a flameout and flat spin is the cause for the crash of Tom Cruise's character's aircraft during a mock dogfight.
FLAMEOUT 5111 5112 (1844 words)
FlameOut for Fabric/5111 is a clear, non-toxic, non-corrosive water-based fabric fire retardant, specifically designed for use by manufacturers to pre-treat fabrics.
FlameOut for Fabric/5111 is safe for all fabrics, natural or synthetic and will not change the color or colorfastness of fabric.
FlameOut for Fabric/5112 protects interior fabrics by treating the fibers of the fabric surface to starve fire by denying it the fuel it needs to survive.
  More results at FactBites »



Share your thoughts, questions and commentary here
Your name
Your comments

Want to know more?
Search encyclopedia, statistics and forums:


Press Releases |  Feeds | Contact
The Wikipedia article included on this page is licensed under the GFDL.
Images may be subject to relevant owners' copyright.
All other elements are (c) copyright NationMaster.com 2003-5. All Rights Reserved.
Usage implies agreement with terms, 1022, m