<VV> CORSA add

[Dave Morris]

PSRUs are common aircraft whose engines run best at high RPMs.  It reduces 
the engine RPM down to where a prop can run at a lower speed in order to 
prevent the prop tips from going supersonic.  The Rinker PSRU was an early 
attempt to see how one might convert a Corvair engine for aircraft 
use.  Nowadays, virtually everybody putting a Corvair engine on their 
airplane is doing a direct-drive prop (a special hub bolts onto the crank 
gear) with an OT-10 cam to bring the useful torque down into the 3100 RPM 
range where we don't need the PSRU.  It saves a lot of weight, complexity, 
and reliability problems.

Dave Morris
Dragonfly aircraft with Corvair 110 engine


At 07:02 AM 12/3/2004 -0800, you wrote:

>PRSU = Propeller Speed Reduction Unit
>
>David
>
>
>
>--- Daniel Monasterio <dmonasterio@megared.net.mx>
>wrote:
>
> > There is an add at CORSA classifieds that says:
> > "Rinker PSRU's for Corvair
> > engines........"
> >
> > I tried to decipher "PSRU" but couldn't, do somebody
> > knows what it means ?
> >
> > Thanks
> >
> > Daniel Monasterio
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