airbond
8th Sep 2009, 07:55
On the B737 NG, what is the flight idle N1 and approach idle N1 ?
iflytb20
8th Sep 2009, 08:20
Flight Idle: Not less than 59% N2 for IDG ops
Approach Idle: It is automatically selected in flight when Engine Anti-Ice is on for EITHER engine OR below 15000 feet AGL. It is the highest of the three [Ground, Flight and Approach]. It is normally between 72-79% N2
Hope it helps