Jerry,
Martin is working on new ferrules for the new carbon fiber blades.
Jack Norris was the designer for the blades for the hydraulic constant
speed outfit and when I asked him about them he told me that they were
optimized for faster aircraft like the Europa.
Paul
On Tue, Jun 11, 2013 at 2:05 PM, Jeremy Fisher <jffisher@gmail.com> wrote:
> Thanks. However the Whirlwind story is confusing. Effectively there are
> now two Whirlwind companies, the original for fixed pitch props and a
> spin-off for constant speed. I think that Martin at Airmaster was
> referring to the blades from the hydraulic constant speed outfit. The
> fixed pitch company also has new carbon fiber blades, but I think that they
> are 70", which is a bit much. I will follow up. And yes Nigel, thanks,
> you are right, I do need to check the inertia data.
>
> This has turned out to be a much more complex question than I originally
> understood, but it does make quite a difference in aircraft performance and
> reliability.
>
> Jerry
>
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