In addition to the extra power the 912S also has a larger gearbox reduction
ratio ( as does the 914 ). For those two reasons we have recommended wide
blades on the 912S. Our blades are not quite the same as WarpDrive blades so
this may not hold true for them. The fact that the propeller is slower
turning may have almost as large effect on the blade requirement as does the
extra power.
Jerry
lts@avnet.co.uk
http://www.avnet.co.uk/touchdown
-----Original Message-----
From: Graham Singleton <grasingleton@avnet.co.uk>
<europa@avnet.co.uk>
Date: 11 October 1999 23:44
Subject: Re: Quantum Leap
>>How do the uninitiated and uninformed tell which type of Warpdrive prop
>they
>>have?
>>Would the thin blade be appropriate for a 912S?
>>
>>Regards, John A044
>
>My guess would be that the wide blade would be a better compromise. It has
>been suggested that the narrow blade can be pitched to hold the revs down
>in the cruise but you might find the climb less efficient. Hot and high
>take offs are where it would count most.
>I stress that this is gut feeling not calculated, based on the fact that
>the narrow blade Warp Drive is a good compromise fixed pitch prop for the
>912 . That compromise is unlikely to be as good at higher power.
>
>Opinions you guys with 912S and 914?
>
>Graham
>
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