Prop Unfeathering Accumulators - Question

[Kim Geyer]

I sure they were used during check rides if an engine was pulled. We did remove them during an engine change. The rear mount was repaired in the area where the accumulator was mounted and was going to take some engineering to remount it. so we decided to just remove them.

[wslade2]

On the feathering issue: am aware of gates. In attempt to feather on ground, run up engine/warm up, then smartly pull back throttle and prop control being sure to lift up and over gate. No joy on seeing prop in feather position after engine stops. It's been a while but pretty sure manual says prop feather supposed to happen like that. Watching video earlier in this thread, looks like would be assured steady decent on one engine if am unable to feather a prop, but hope of maintaining altitude if prop would feather.

[JAG]

wslade,
At what RPM are you at when you try to feather on the ground? If your RPM is not high enough(>1700 approx.), the feather latches will not have moved out of the way.

I may be the only one that likes the feather gates...they seem logical to me, much like aircraft I have flown (turboprop) that has a reverse gate. It is a helpful small step that makes you really "think" about the action you are taking - ensuring you intend on feathering.

Jeff

[hharney]

The gates totally make sense to me and in fact when flying other piston twins and singes I can't believe they don't have gates. I too have lots of time in TurboProps so it was easy for me to use the gates when going into Beta with those

wslade, when you do your run up before takeoff based on the book, there is no feather? I pull the levers up in high pitch then bring them back to feather. Try leaving the props in high RPM and lift up the lever then pull all the way back (down)

[mshac]

Originally Posted by hharney

The gates totally make sense to me and in fact when flying other piston twins and singes I can't believe they don't have gates. I too have lots of time in TurboProps so it was easy for me to use the gates when going into Beta with those

wslade, when you do your run up before takeoff based on the book, there is no feather? I pull the levers up in high pitch then bring them back to feather. Try leaving the props in high RPM and lift up the lever then pull all the way back (down)

The jet airliners I flew had reverse thruster gates - that doesn't make me like the ones in the Skymaster any better!