On 3/4/2015 13:01, 'John Barker' john.barker783_at_ntlworld.com
[Indoor_Construction] wrote:
>
> Thank you for the interesting information. Obviously with a smaller
> diameter the Froude efficiency will drop slightly but the efficiency
> related to P/D ratio could be improved, certainly in the later stages
> of the flight if the VP lowers the blade angle. Has this been
> discussed at all?
>
Interesting subject, and I have not seen any discussion on this. You are
suggesting, that a smaller diameter prop would have a larger range of
good efficiency (range in torque / prop RPM / output power that is).
Could you explain how you drew this conclusion? (Not trying to
criticize, but it is not obvious to me how this conclusion is drawn...)
-Tapio-
Received on Fri Apr 03 2015 - 03:24:02 CEST
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:48 CET