Engine Operation & Monitoring Flashcards
(10 cards)
Vibration sensors are used in a gas turbine engine to indicate?
Imbalance of one or both of the spools.
The turboprop alpha-range power level is the range of power level positions between
Flight idle and maximum power.
In a turbine engine, what is the parameter N1, which is used to represent thrust?
N1 refers to the rotational speed of the low speed spool which consists of the fan, the low pressure compressor and the low pressure turbine.
On landing and prior to shut down, a gas turbine engine should be run at “GROUND IDLE” for a short period. This allows?
The core temperature to diminish, or prevent seizure of the rotor blades in their seals.
An abortive (hung) start is the term used to describe an attempt to start in which the engine?
Lights up, but fails to accelerate sufficiently.
The re-light envelope defines the optimum conditions for when a turbine-engine can be re-ignited following a flame-out. It is based on?
Airspeed and Altitude
The purpose of gas turbine engine trending is?
To enhance maintenance planning and detect anomalies.
When a turbo-prop aeroplane decelerates during the landing roll, a constant speed propeller within the beta range produces?
Negative thrust.
What is the propeller range when the reverse is selected?
BETA Control Range.
