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Forum: Tech Log

18th Nov 2012, 15:49

Replies: 71

Beta Range

Views: 36,673

Posted By JammedStab

Keep in mind that not all aircraft with PT-6...

Keep in mind that not all aircraft with PT-6 engines have high and low idle. The Twin Otter did not have this feature. I believe it was around 51% Ng at ldle.

Forum: Tech Log

14th Oct 2012, 11:07

Replies: 71

Beta Range

Views: 36,673

Posted By JammedStab

A good example of drag being used from a...

A good example of drag being used from a propeller if fine(or flat) pitch is the Rolls Royce Dart engine on aircraft types such as the HS748 and the F-27. They have no reverse. On short final when...

Forum: Tech Log

14th Oct 2012, 10:43

Replies: 71

Beta Range

Views: 36,673

Posted By JammedStab

I would be careful about interpeting the above...

I would be careful about interpeting the above statement as having to do with beta range. It is just the throttle controlling blade angle, and I suppose gas generator speed(N2/Ng) on the PT-6.

I...

Forum: Tech Log

14th Oct 2012, 05:04

Replies: 71

Beta Range

Views: 36,673

Posted By JammedStab

As you bring the power back the blade angle...

As you bring the power back the blade angle changes. Not directly from the throttle movement though. The constant speed unit is attempting to maintain the rpm you told it to maintain with the prop...

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