Richard Lamb wrote:
Copy that, Corky.

One thing that doesn't get discussed much is the idea of
direct drive auto conversions.

The VW is usually done that way, and I know of one V8 setup that
runs direct drive.

Direct drive eliminates the many advantages of properly geared
installations, such as crank protection against prop impacts or
stoppages, the offset in crank to propeller line which enables the
engine to sit lower in the airframe, and the lower noise of slower
turning propellers. In many installations it is possible to start and
run the engine without a propeller attached, making maintenance and
troubleshooting easier.