Light Aircraft Association

Thanks for your reply.Details as follows:-Tractor, fixed, wood, jodel ,cowlings not an issue.engine C65.I have seen figures of 1/8 inch at tip run out being the limit so I would have thought 1/4 inch ok at 8 inch radius from centre of prop hub.

Anyone know what's the nearest recommended distance an engine accessory can be to the rear of the prop disc? ie, How much allowance should be made so the prop does not strike the accessory?