Lorn,

 

For slick airplanes, the drag of a stopped prop is somewhere between high drag of the rotating disc of a flat pitch prop and the much lower drag of one in coarse pitch.

 

For a draggy airplane a stopped prop and a coarse pitch prop have little effect on the overall drag.

 

Grayhawk

 

 

When your prop is stopped, you have no oil pressure.

> From: "Lancair" <lancair-esp@ustek.com>

> Date: September 7, 2008 6:08:38 PM GMT-04:00
>
> I installed a 4-bladed feathering MT prop and they said that if the 
> engine is producing oil pressure you do not need an accumulator.
>
> Robert M. Simon
> ES-P N301ES

--
Lorn H. 'Feathers' Olsen, MAA, ASMEL, ASES, Comm, Inst
DynaComm, Corp., 248-345-0500, mailto:lorn@dynacomm.us
LNC2, FB90/92, O-320-D1F, 1,400 hrs, N31161, Y47, SE Michigan




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