Captjetblast From Argentina, joined Aug 2001, 280 posts, RR: 0 Posted (9 years 10 months 2 days 2 hours ago) and read 1469 times:
Maybe I'm wrong, but i"ve heard something about setting ignition ON on finals. Is it something related to avoid sudden engines flameout near the runway?
Jetguy From , joined Dec 1969, posts, RR: Reply 1, posted (9 years 10 months 2 days 1 hour ago) and read 1435 times:
It actually depends upon the requirements of the particular aircraft - I've flown some that require the ignitions to be "ON", and others where it's only necessary to to keep them in "AUTO". The requirement, when required , is to make sure that you keep the "fires" burning in the event of a sudden large power-lever movement - say, for example, a go around. The same thing goes for takeoff, some aircraft require you to use ignitions, other don't. The other times where you'd want to use ignitions is during moderate or greater turbulence and in heavy rain.
Rick767 From United Kingdom, joined Jan 2000, 2662 posts, RR: 52 Reply 2, posted (9 years 10 months 2 days ago) and read 1405 times:
On the 757, with AUTO selected on the engine start panel (the standard setting after engine start), the selected igniter(s) will operate continuously whenever the flaps are extended to any angle away from zero, and/or engine anti-ice is on.
So we have no need to make a new selection prior to landing.
I used to love the smell of Jet-A in the morning...
Avioniker From United States of America, joined Dec 2001, 1109 posts, RR: 11 Reply 5, posted (9 years 10 months 1 day 10 hours ago) and read 1284 times:
Think of very strong spark plugs and the capacitive discharge system needed to provide that strong spark. In the area of 15 to 40 joules of energy.
One may educate the ignorance from the unknowing but stupid is forever. Boswell; ca: 1533
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