---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Fri 04/27/07: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:40 PM - spinner to prop clearance (Vince-Himsl) 2. 07:34 PM - Re: spinner to prop clearance (Dick DeCramer) 3. 09:24 PM - Re: Re: spinner to prop clearance () ________________________________ Message 1 _____________________________________ Time: 06:40:41 PM PST US From: "Vince-Himsl" Subject: RV8-List: spinner to prop clearance Hello, The plans say 1/16 to 1/8=94 gap clearance between spinner and prop (catto three blade) My gap(s) are more like 1/8=94 to =BC=94 Are we talking aesthetics here or safety/performance? Anyone per chance with the same gap (gaffe) and prop? Thanks Vince H. Finish RV8-VSB Estimated time of completion: 6 years ago. ________________________________ Message 2 _____________________________________ Time: 07:34:15 PM PST US From: "Dick DeCramer" Subject: RE: RV8-List: spinner to prop clearance Vince... Most appear to be going for tighter clearances but I enlarged mine to 7/16" and glad I did. The cowl is difficult enough to get off & on without scratching the paint now without it being still tighter. I think the feeling here is some efficiency (performance), mostly aesthetics, but not much maintainability. My prop was a Sensenich FP but since converted to Hartzell CS. Another popular close fit is around the tires on wheel fairings to improve aerodynamics but I have seen many chaffed tires. I tried for a "thumb width" around the tire and even enlarged it later to allow the tires room to flex. I did chose ease of maintenance over a couple knots I built and this has served me well. Dick DeCramer N500DD RV6 200 hours Northfield, MN ----- Original Message ----- From: Vince-Himsl Sent: 4/27/2007 8:49:53 PM Subject: RV8-List: spinner to prop clearance Hello, The plans say 1/16 to 1/8 gap clearance between spinner and prop (catto three blade) My gap(s) are more like 1/8 to Are we talking aesthetics here or safety/performance? Anyone per chance with the same gap (gaffe) and prop? Thanks Vince H. Finish RV8-VSB Estimated time of completion: 6 years ago. ________________________________ Message 3 _____________________________________ Time: 09:24:43 PM PST US From: Subject: Re: RE: RV8-List: spinner to prop clearance Seven years ago the HRII (IO-540) was ready for the cowl/spinner clearence question. I ask on line and was advised to leave at least 1/4 at the top & 7/16 at the bottom so when the "sag" occured they would even out. This was reportedly because of the "extra" weight of six cylinders & longer monment. Well six years later I'm still waiting for the "sag" to even up the gap. Not sure how many 1/1000th's of a MPH we lost because of the gap BUT take a look at the spam cans (Comanche's) gap & SMILE. KABONG Do Not Archive >From: Dick DeCramer >Date: 2007/04/27 Fri PM 09:33:43 CDT >To: rv8-list@matronics.com >Subject: RE: RV8-List: spinner to prop clearance >Vince...Most appear to be going for tighter clearances but I enlarged mine to 7/16" and glad I did. The cowl is difficult enough to get off & on without scratching the paint now without it being still tighter. I think the feeling here is some efficiency (performance), mostly aesthetics, but not much maintainability. My prop was a Sensenich FP but since converted to Hartzell CS.Another popular close fit is around the tires on wheel fairings to improveaerodynamics but I have seen manychaffed tires. I tried for a "thumb width" around the tire and even enlarged it later to allow the tires room to flex. I did chose ease ofmaintenance over a couple knotsI built and this has served me well. Dick DeCramerN500DD RV6200 hoursNorthfield, MN----- Original Message ----- From: Vince-Himsl To: rv8-list@matronics.comSent: 4/27/2007 8:49:53 PM Subject: RV8-List: spinner to prop clearance > >Hello, > >The plans say 1/16 to 1/8 gap clearance between spinner and prop (catto three blade) > >My gap(s) are more like 1/8 to > >Are we talking aesthetics here or safety/performance? > >Anyone per chance with the same gap (gaffe) and prop? > >Thanks >Vince H. Finish >RV8-VSB >Estimated time of completion: 6 years ago. > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv8-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV8-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rv8-list Browse Digests http://www.matronics.com/digest/rv8-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.