---------------------------------------------------------- RV7-List Digest Archive --- Total Messages Posted Wed 12/07/05: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:02 AM - changing props (BTomm) 2. 10:42 AM - Re: changing props (LessDragProd@aol.com) 3. 10:55 AM - Re: changing props (Dan Checkoway) ________________________________ Message 1 _____________________________________ Time: 10:02:10 AM PST US From: BTomm Subject: RV7-List: changing props --> RV7-List message posted by: BTomm Can anyone tell me if there are cowling (or other ) issues if I initially fit my RV7 cowling for a fixed pitch sensenich prop and spinner and later upgrade to an MT? I suspect that the spinner and backing plate will make for a difference in spacing from the cowling. I would want to build in this difference so I don't have to modify the cowling later. Anybody know? Bevan RV7A Fuse ________________________________ Message 2 _____________________________________ Time: 10:42:52 AM PST US From: LessDragProd@aol.com Subject: Re: RV7-List: changing props Hi Beven and All, Normally, when you order a new MT Propeller, your existing spinner diameter and cowl spacing is required. MT Propeller then fabricates the spinner assembly on your propeller at the factory to match your cowl installation. This propeller assembly is then shipped as a custom fitted bolt on product. Bottom line: Fit the cowl to what you need now, MT will match what you have when you want to change. Regards, Jim Ayers Less Drag Products, Inc. - An MT Propeller distributor FAA Propeller Repair Station # LDSR535X In a message dated 12/07/2005 10:05:20 AM Pacific Standard Time, fvalarm@rapidnet.net writes: --> RV7-List message posted by: BTomm Can anyone tell me if there are cowling (or other ) issues if I initially fit my RV7 cowling for a fixed pitch sensenich prop and spinner and later upgrade to an MT? I suspect that the spinner and backing plate will make for a difference in spacing from the cowling. I would want to build in this difference so I don't have to modify the cowling later. Anybody know? Bevan RV7A Fuse ________________________________ Message 3 _____________________________________ Time: 10:55:28 AM PST US From: "Dan Checkoway" Subject: Re: RV7-List: changing props --> RV7-List message posted by: "Dan Checkoway" You can always shim the engine mount away from the firewall if it comes to that. Rosie recently did that after 2000+ hours -- switched from a Sensenich fixed-pitch to a Hartzell constant-speed prop. The spinner back edge contacted the cowl. He was gonna have to modify the cowling a bit (build up on the inside and then chop/sand off the outside to increase clearance) when somebody suggested he just offset the engine mount forward with shims. He did that, bingo...clearance issue resolved. No need to chop & repaint. Not saying this will work in your case, but it's an option to keep in mind. Best case scenario -- find somebody who will lend you their prop for a day so you can fit it and see how much clearance you'll need. Then give it back and fly with a mondo gap in there until you buy the real deal. Ugh. )_( Dan RV-7 N714D (715 hours) http://www.rvproject.com ----- Original Message ----- From: "BTomm" Subject: RV7-List: changing props > --> RV7-List message posted by: BTomm > > Can anyone tell me if there are cowling (or other ) issues if I initially > fit my RV7 cowling for a fixed pitch sensenich prop and spinner and later > upgrade to an MT? I suspect that the spinner and backing plate will make > for a difference in spacing from the cowling. I would want to build in > this difference so I don't have to modify the cowling later. Anybody > know? > > Bevan > RV7A Fuse > > >