---------------------------------------------------------- RV7-List Digest Archive --- Total Messages Posted Wed 07/17/19: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:52 AM - Re: RV-7 Performance Data Request (Greg Williams) ________________________________ Message 1 _____________________________________ Time: 06:52:26 AM PST US From: Greg Williams Subject: Re: RV7-List: RV-7 Performance Data Request So what does it mean when you're in cruise, leaned but ROP, everything loo ks good but one cylinder, number three, is running lower egt then the rest . By almost a hundred degrees. Greg ________________________________ From: owner-rv7-list-server@matronics.com on behalf of Bevan Sent: Tuesday, July 16, 2019 2:45:48 PM Subject: Re: RV7-List: RV-7 Performance Data Request When flying high in my RV7A... Throttle is always full open for max available manifold presssure, I usually use 2400rpm for cruise because I've had it dynamically balanced a t that RPM. Yours may be different. Once established in cruise, I lean to LOP via the big pull method and end u p around 40-60 LOP resulting in 7.5gph, 160Knots (TAS) at 8,000-11,000'. A little slower when higher (maybe 155TAS @ 12,500' (from memory). I have fuel injection and dual P-mags (spark advance) so not all will be ab le to get the same results. What you really need to do is to do some resea rch on the equipment/configurations onboard, plan some test cards and go fl y. You'll want to know a bunch more stuff if it's not in the POH the build er made (or didn't). Things like... best rate/angle of climb. Max power fuel consumption. Various cruise speed fuel consumptions. Best glide speed (mine was a range). Least amount of sink (power off glide). Be sure to do it with prop fine AN D coarse. Doing these things yourself will bring a lot of understanding and make you a better pilot. Each Amateur-built RV7 is somewhat unique for various reas ons, and we like it this way. :) Bevan On 7/15/2019 8:30 AM, Greg Williams wrote: I have flown my 2004 RV7 for many hours now (IO360, Hartwell C/S, SkyView). Lots of cross country. I file for 150 knots at 12,000 or 11,000 dependi ng on terrain & heading. Have O2 but wife doesn't like it. Usually see ab out 19.5" at 2400rpm and run 8.5 gpm leaned out but ROP. I don't keep trac k of exact numbers but these are close. Sometimes will run LOP but not th at often. Greg Greg ________________________________ From: owner-rv7-list-server@matronics.com on behalf of Garry Stout Sent: Monday, July 15, 2019 8:10:12 AM Subject: Re: RV7-List: RV-7 Performance Data Request :garrys@tampabay.rr.com> I too would be interested in these numbers. Garry Stout > On Jul 15, 2019, at 10:45 AM, mdaniels wrote: > ox1969@earthlink.net> > > Hi, I have an RV-7 with a LYCO IO-360 & a constant speed prop; and, I wou ld like to get some actual performance figures to use in FltPlan.com. I wo uld very much appreciate any data/performance figures that you use for X-co untry planning. Hopefully I can =91pick your brain=92 for Altitude, RPM, M anifold Pressure/Throttle setting, and what IAS & TAS speeds those settings produce. It would also be greatly appreciated if you would include your Cl imb & Descent speeds and GPH that you fly. Also, any tips or tricks that y ou have learned in your X-country planning and flying. > Thank you very much > > Email Forum - List">http://www.matronics.com/Navigator?RV7-List p; - MATRONICS WEB FORUMS - ums.matronics.com p; - NEW MATRONICS LIST WIKI - matronics.com p; - List Contribution Web Site - p; -Matt Dralle, List Admin. http://www.matronics.com/contribution -- Bevan Tomm Senior Technician Fraser Valley Alarm Services Inc. bevan@fvas.bc.ca office 604-854-2994 Fax 604-852-6408 [https://static2.avg.com/2000491/web/i/ipm/icon-envelope-tick-green-avg-v1. png] Virus-free. www.avg.com ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv7-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV7-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/rv7-list Browse Digests http://www.matronics.com/digest/rv7-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.