View Full Version : A310 TRP
chasethehorizon
13th Apr 2014, 02:37
Can anyone explain why in auto the thrust limit never cycles to CR on level off but rather stays in CL? Thanks,
ahramin
15th Apr 2014, 03:26
Because there is no such thing as cruise thrust limit. It's the same as climb.
vilas
15th Apr 2014, 04:03
ahramin
You are incorrect. If you see in QRH there is MAX CRZ and MAX CLB tables and they are different. It is basically a design choice because you may climb again. At final level you select CRZ manually. This also is not a good idea because in turbulence MAX CRZ thrust may not be sufficient. Since it is only a limit thrust good idea to leave it in CLB.
chasethehorizon
16th Apr 2014, 03:40
ahramin - seconded, I have the CL and CR buttons staring right at me
vilas - Makes sense to me, I have never seen anyone manually select CR in cruise, thanks
ahramin
16th Apr 2014, 07:49
I stand corrected. There is a Max Cruise, but it is not a limit. Couldn't find those tables in the QRH but mine is many years out of date.
I suspect Vilas' explanation is as good as it's going to get. You don't want it to limit to Max Cruise, as you may want more.
latetonite
21st Apr 2014, 19:58
All same reason why your approach limit is GA, no?