Sorry Harald,

Those engines were actually aftermarket Chevy small block engines, not corvette engines.  Depending on what ignition setup and what PSRU is with it, you may have an unsafe power plant.  There were only a very few of these that were delivered to customers and it would be interesting to know which one you have.  If the PSRU has a cast case, I would be very cautious and would look for another technology.  The one I'm thinking of has three telescoping quill torque tubes as drivers that reduce the propeller speed and damp harmonic vibration.  They do this job OK, But they have walls about 60 thousandths of an inch thick and are prone to break. If they do this in flight you will be an instant glider.  If you need repairs or service for this device you will likely never be able to find anyone to help.  Internal gears are totally non standard and will likely be impossible to duplicate.

There were never any manuals or technical papers developed for these engines.  The mechanic who built the prototype never shared detailed technical information even with the owners of the company. 

The electronic ignition system never really worked very well either. 

Regards,

John Barrett 

Sent from my iPad

On Jan 21, 2014, at 4:10 PM, <marv@lancair.net> wrote: