Questions tagged [ignition]

The device inside a turbine engine that lights its fires. Basically a big sparkplug.

Filter by
Sorted by
Tagged with
15
votes
4answers
6k views

Why do jet engine igniters require huge voltages?

Wikipedia's Components of Jet Engines has this to say on the igniters: A high voltage spark is used to ignite the gases. The voltage is stored up from a low voltage (usually 28 V DC) supply provided ...
21
votes
1answer
5k views

What's wrong in this engine test cell picture from the book 'Ignition'?

This is picture taken from 'Ignition' book by John D Clarke. I am bewildered after seeing picture that I can't find wrong in this picture. I guess this is related to the structure of mach ...
8
votes
4answers
3k views

Do modern jet engines need igniters?

I've read that modern aircraft don't need spark plugs like conventional aircraft do, as the jet fuel autoignites once it's mixed with the hot air exiting from the compressors. Then why do aircraft ...
3
votes
1answer
310 views

Why is IGN SYSTEM A FAULT dispatch a NO GO on the A320 for ETOPS?

In the A320 MEL if Ignition system A is under MEL the aircraft can't be dispatched for ETOPS. Why is it specifically restricted for ETOPS because even while conducting non ETOPS if we go into ...