Oil supply during aerobatics

[Steamie1]

New to Nippering. To keep oil pressure when doing basic aero's what is the
clunk system or full inverted system? What do they cost and where are these items from?
Revmaster engine.

[Neil Spooner]

Hi Lloyd,
The inverted system is based on the same equipment as the Christen Inverted system. There is quite a lot of work involved, as it means modifying the oil pick up system, which can only be done with the engine stripped. You will also need to modify the crankcase breather system.
I did look at modifying the sump to provide a way of supplying the oil pump externally, and I am sure it could be done, but quite difficult to do it reliably.
There is no "off the shelf" solution available sadly.
Neil