Only flown pt6 and garret on ag work pt6 can be started and hold the prop no worries wont hurt the engine so p&w say (never tried it).... always start pt6 in gnd idle no mixture all done by the fcu leave in feater till min oil temp then into fine for taxi book says cycle at least once to get warm oil into the prop hub and governor.... seen airline jocks in pc12 and king air having props going into fine as the secondarys ar coming in...no idea why only loads the starter for no reason and makes the start longer. The garret dont try the prop thingy will throw you round a bit.... start it as per the book low rpm and flight idle when self sustaining then into gnd idle till oil at min temp have had good results 6000hrs on pt6 b4 overhaul using this method. Operating down to 0c in the winter and 40 c in summer
