Yep, lowered it by .75 - 1".
----- Original Message -----
From: kenpowell@comcast.net
Sent: Thursday, September 09, 2004 9:59 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Tracy's RV4 thrust line
Tracy, did you lower or raise (by.75"?) the thrust line on your RV4? I thought that you lowered your engine so the alternator would not require such a large blister but now as the years have passed I'm not so sure. I built my motor mount to put the thrust line at the stock location but I am considering raising it so I can run a longer prop. Note that I bought the engine mount in 2002 so I have the longer gear legs. If you lowered your engine I probably will not bother to make any changes but if you raised the engine I will probably need the extra prop clearance.
Ken Powell