---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Mon 08/16/10: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:41 AM - Re: Brownsville California Photos - Inspiration (Speedy11@aol.com) 2. 09:34 AM - Re: Re: Brownsville California Photos - Inspiration (William L. Paulin) ________________________________ Message 1 _____________________________________ Time: 07:41:42 AM PST US From: Speedy11@aol.com Subject: RV8-List: Re: Brownsville California Photos - Inspiration Matt, I must be doing something wrong because my IO-390 powered RV-8A numbers aren't even close to yours. At 7K', to get 177 KTAS (204 MPH TAS) I have to burn 10.2 GPH and turn 2450 RPM. I can get 3000 FPM climb, but only to pattern altitude. Enroute climb at 145-150 KIAS produces only 600 FPM. I've climbed to 15.5K' and I'm planning a test flight to FL240 - to see if it will make it. I have Bower's ram air and a MT 3 blade - both of which should help with high altitude performance. I'm planning a trip from FL to VT in 2 weeks, so I'll see how my cruise numbers are after that flight. But, with the numbers I have now, I'm nowhere near your numbers. I wonder why? Stan Sutterfield rv-8a.net On the way home, I had the IO-390 engine dialed in at 7000ft, 22.4" MP / 2200 RPM and 204 MPH True at 8.8 GPH. Earlier in the week I took it to 18,000ft (on oxygen) and was seeing 170 MPH True at 5.5 GPH, 192 MPH @ 6.5 GPH, and 202 MPG @ 7 GPH. At the 5.5 GPH, that's about a 1300 mile range less reserves. Coupled with the 3000+ FPM climb solo ________________________________ Message 2 _____________________________________ Time: 09:34:47 AM PST US From: "William L. Paulin" Subject: Re: RV8-List: Re: Brownsville California Photos - Inspiration Airspeed calibration error .... or drag? BIll On Aug 16, 2010, at 7:36 AM, Speedy11@aol.com wrote: Matt, I must be doing something wrong because my IO-390 powered RV-8A numbers aren't even close to yours. At 7K', to get 177 KTAS (204 MPH TAS) I have to burn 10.2 GPH and turn 2450 RPM. I can get 3000 FPM climb, but only to pattern altitude. Enroute climb at 145-150 KIAS produces only 600 FPM. I've climbed to 15.5K' and I'm planning a test flight to FL240 - to see if it will make it. I have Bower's ram air and a MT 3 blade - both of which should help with high altitude performance. I'm planning a trip from FL to VT in 2 weeks, so I'll see how my cruise numbers are after that flight. But, with the numbers I have now, I'm nowhere near your numbers. I wonder why? Stan Sutterfield rv-8a.net On the way home, I had the IO-390 engine dialed in at 7000ft, 22.4" MP / 2200 RPM and 204 MPH True at 8.8 GPH. Earlier in the week I took it to 18,000ft (on oxygen) and was seeing 170 MPH True at 5.5 GPH, 192 MPH @ 6.5 GPH, and 202 MPG @ 7 GPH. At the 5.5 GPH, that's about a 1300 mile range less reserves. Coupled with the 3000+ FPM climb solo ********************************* William L. Paulin, Ph.D. PaulinNeal Associates 1575 South Forest Drive Prescott, AZ 86303 Cell +1 858 722 2905 Office +1 760 720 2905 Europe +358 40 720 4047 wpaulin@paulinneal.com ------------------------------------------------------------------------------------- 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.