Originally Posted by
FGD135
You cannot draw that conclusion from that evidence.
King Air operators have a variety of policies in regard of where the condition levers are set. For the 4 bladers, I believe the low idle setting is 60%, not 52%. The lever can be set at intermediate positions (e.g. 62%). If they needed airconditioning that morning, it is possible the R engine was at 62%, with the left at 60%. It is possible both were at 60% - or 62%. It is unlikely that both were at 70%.
More lilely they should be at 70% high idle. This should be used for take off and landing. The A/C should be in in the OFF position for take off and landing.
Contradicting yourself. You seem to be saying that with the loss of oil pressure, the prop will feather. Then you say that, without oil pressure, the autofeather may not work. (!)
No saying that with out oil px the prop will freather. But as the engines are working it may not work as the Tq is above the low setting to activate.
There is plenty of oil pressure at all normal engine speeds. I believe there is plenty even at speeds as low as 20% Ng. During start, the prop begins to unfeather well before the Ng is fully up to speed.
Are you joking 20% is around light off Ng. The engine is not even close to self substanting its self. 50%Ng is when the engine will hold its own.
Wrong. The pilot can still inadvertently feather the good engine. If the bad engine has autofeathered, the good can still be manually feathered.
Correct thats why its fitted with auto freather to prevent this.