View Full Version : the APU start times limit

28th Apr 2010, 12:51
Hi, everybody! The Airbus limitations give us that the APU can be sturted only 3 times consecuently then 1 hour of "rest". Any ideas why only 3 times?
Thanks for advance!

gas path
28th Apr 2010, 13:00
To let the battery recover

Its charge state.
To let it cool down.

28th Apr 2010, 13:00
give the starter motor and battery time to cool off.

28th Apr 2010, 13:13
yep its called duty cycle.
there is a lot of current flowing and it makes things hot.