Originally Posted by
Uplinker
A little known fact (amongst pilots) is that the V2500 engine's FADEC will dry motor the engine if the residual EGT before start is above 100 degrees centigrade, and only when the EGT has fallen below 100 degrees will the FADEC introduce fuel to achieve a new start.
This, they say, is to avoid rotor bow, which I guess is a problem with such a long N1 (fan) rotor shaft, and it can add significant extra time to an engine start with warm engines.
Our crates have V2500-A5 SelectOne with SCN17 FADEC software.
I have seen fuel injection as soon as temp below 250 degrees.