starter/gen in alison c20 engines

[Bravo 99 (AJB)]

I have had various discusion regarding this after I went for a Job on the 355 at east mids he wanted both engines up and running at flight idle before switching the generators on
my training at PAS was to take the engine to 70% ng on which ever engine you where starting first then generator and invertor on then start the second engine and when at 58% Ng and self sustained generator and invertor on, and as PPrune states above no 1 minute delay

the discusion following meeting Nigel and checking with PAS was that in the early models there was a problem with the quill shaft breaking should the generators be switched on before flight idle but AS modified things and the above procedure was then in order. 70% ng was as discussed above due to pos ng droop.

Th AS flight manual still has take the engines to flight idle before generator on but i have been asured that there is a supliment for cover the reasons explained above

This is my interpriotation of what I was tought.

Regards

Bravo 99 (AJB)