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02-15-2010, 08:42 AM
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Join Date: Feb 2005
Posts: 1,082
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Wheel Pant Comparisons Wanted
My RV4 has the older flat sided wheel pants. If you have upgraded to the newer style pants I'd love to hear what if any performance improvement you had. I am considering upgrading them but will not do it if there is no benefit. Thanks.
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Mike
JAMES AIRCRAFT.com
Flying - RV8 Hot Rod "Drone Killer"
Flying - RV8 "Look'n Good"
RV4 - FAST & FUN! Rebuilt, Flown, Sold
RV-7A Built, Flown, Sold
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02-15-2010, 10:48 AM
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Join Date: Jan 2005
Location: Powder Springs, Ga
Posts: 309
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Wheel Pants
I replaced my old flat pants with the new 2 piece. I picked up 9 MPH on my -6A. Go for it, you won't regret it.
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Kurt Lohmueller A&P, DAR
Powder Springs, Ga
RV6A "Kurt's Toy" - Flying
RV12 - Flying - Sold
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02-15-2010, 11:17 AM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,027
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With the extensive testing done by Van's, they found them to improve cruise speed by 4 - 5 MPH. I think this was with a change to the fiberglass gear leg fairings also.
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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02-15-2010, 11:29 AM
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Join Date: Jul 2005
Location: North Atlanta
Posts: 1,120
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I picked up 6-8 MPH in a high power cruise going to Sam James pants over the flat Van's pants. I changed the upper fairings at the same time so maybe 1-2 MPH came from those as the old ones were very ragged.
I have the 2600 RPM redline prop and could reach right at 2600 before, now I can reach 2680. That should give you a good idea at how much more efficient the pressure recovery pants are.
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Sid Lambert
RV-7 Sold
RV-4 - Flying - O-320 Fixed Pitch - Red over Yellow
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02-15-2010, 08:05 PM
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VAF Moderator / Line Boy
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Join Date: Jan 2005
Location: Dayton, NV
Posts: 12,247
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Louise's RV-6 picked up about 6 knots going from the old pants and metal gear leg fairings to the pressure recovery pants, fiberglass gear leg fairings, and Fairings Etc. Uppers and Lowers.
Paul
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Paul F. Dye
Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
A&P, EAA Tech Counselor/Flight Advisor
Dayton Valley Airpark (A34)
http://Ironflight.com
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02-15-2010, 08:38 PM
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Join Date: Jan 2005
Location: Peoria, AZ
Posts: 1,053
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I just started replacing the old wheel pants with the new pressure recovery wheel pants on our RV-4. Sure hoping to see that 4-5 mph increase.
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Regards,
Thomas Velvick
Goodyear, AZ (KGYR)
2020 Donation sent.
N53KT RV-6a finished 2018, Flying
N7053L RV-4 Wife's RV
N56KT RV-4 Finishing
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02-16-2010, 04:09 AM
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Join Date: Feb 2005
Posts: 1,082
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Excellent.....Now I have a spring project. Thanks Paul for the info on the legs as well, I didn't ask but was also wondering about those. I currently have the metal leg fairings and was also toying with changing them. Tom, let us know how you fair as well.
Thanks guys
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Mike
JAMES AIRCRAFT.com
Flying - RV8 Hot Rod "Drone Killer"
Flying - RV8 "Look'n Good"
RV4 - FAST & FUN! Rebuilt, Flown, Sold
RV-7A Built, Flown, Sold
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