Table of Contents
What is engine rundown time?
The time taken by a turbine in a gas turbine engine to come to a complete halt after the engine has been switched off.
What causes a jet engine to flame out?
Engines can flame out for a variety of reasons: Fuel starvation or exhaustion. Compressor Stall. Ingestion of foreign objects such as volcanic ash, hail, ice,birds or an exceptionally large quantity of liquid water.
What causes aircraft engine failure?
The most probable cause of engine failure is fuel contamination, ie, something in the fuel – most commonly water. Be aware that if the aeroplane is not on level ground, a fuel sample check may not be capturing any water or contamination present.
What does rundown time on an engine mean?
rundown time The time taken by a turbine in a gas turbine engine to come to a complete halt after the engine has been switched off. It is one of the indicators of the state of health of an aircraft engine. Also called spool-down time.
When does a gas turbine come to a halt?
The time taken by a turbine in a gas turbine engine to come to a complete halt after the engine has been switched off. It is one of the indicators of the state of health of an aircraft engine. Also called spool-down time. An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc.
What happens in Part 1 of Jet Propulsion?
In part 1 the students move through the three stations discovering what happens as different forces act on air. Then students process what they observed and compile it into the correct arrangement to describe how a turbojet engine produces thrust. This experiment stresses prediction, observation, data collection, and analysis of results.
How does the air move in a jet engine?
In this section the compressor increases the air pressure, which also increases its temperature. From there the air is forced into the burner section, where the temperature is further increased by fuel combustion. The hot, expanding air then moves into the turbine, which drives the compressor.