Originally Posted by
aerobat77
other thing : is a q400 able to start from battery only or do you need an apu running or a gpu connected first ????
It can start from the battery as long as there's enough juice and you would need one engine completely stabilized before starting the other one. Generally battery start on a Q400 requires to go through a special check list and the procedure is not really recommended (not that this guy cared, just saying)