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  #1  
Old 12-18-2019, 08:54 PM
2Ways2Fly 2Ways2Fly is offline
 
Join Date: Jul 2019
Location: Tucson Az
Posts: 5
Default Tire pressure

What are you using for tire pressures on the RV-3?
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  #2  
Old 12-19-2019, 06:33 AM
oaklandaviator oaklandaviator is offline
 
Join Date: Dec 2014
Location: Somerville, Tn and Little Rock, Ar
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Default Tire pressure

We run 23 to 25 psi to control any shimmy tendencies. Lower pressures seem to shimmy less at the expense of tire life. Much under 20 and I start worrying about where we'll have the rubber spin on the rim, but we haven't had it happen even at very low pressures of around 15. Harder to push in the hangar below 20 and I'm sure the takeoff roll is longer...
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  #3  
Old 12-19-2019, 02:39 PM
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RWoodard RWoodard is offline
 
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Location: Brighton, Colorado
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The original builder of my RV-3 listed 29psi as the desired tire pressure for my 3. Iíve always just used his recommendation. My plane is on the heavy side so maybe thatís why Iím at a bit higher psi.
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  #4  
Old 12-19-2019, 09:46 PM
2Ways2Fly 2Ways2Fly is offline
 
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Thanks guys
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  #5  
Old 01-16-2020, 08:15 AM
yarddart yarddart is offline
 
Join Date: Jun 2006
Posts: 107
Default 20psi

Hr1 20psi per jh
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  #6  
Old 01-16-2020, 09:26 AM
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Ironflight Ironflight is offline
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Location: Dayton, NV
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Anything over 26 in ours gives us noticeable gear leg shimmy - and that is WITH wooden dampers installed. Airplane handles fine at that pressure, and we’ve run through two sets of tires in 750 hours, so I call wear acceptable.
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Editor at Large - KITPLANES Magazine
RV-8 - N188PD - "Valkyrie"
RV-6 (By Marriage) - N164MS - "Mikey"
RV-3B - N13PL - "Tsamsiyu"
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Dayton Valley Airpark (A34)
http://Ironflight.com
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  #7  
Old 01-21-2020, 09:38 PM
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titanhank titanhank is offline
 
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Location: Friendswood, Tx
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Rv6 with wood stiffners. I run 50lbs makes it really easy to roll around. I have run all the way down to 20 lbs with no shimmy.
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  #8  
Old 01-22-2020, 01:38 AM
JDeanda JDeanda is offline
 
Join Date: Apr 2013
Location: Ventura, CA
Posts: 64
Default Main Gear Pressure, another country heard from.

Another RV-6 with wood stiffeners... we run 45 -50 PSI and we have the leak-proof inner tubes. We need to add air about every year or so. Main gear shimmy at the end of the landing roll is ever-present, but pressure does not seem to matter. Tire pressure is shockingly non-critical for most light planes. Actually, I like it on the high side because it's easier to push the airplane uphill into our hangar....
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  #9  
Old 01-22-2020, 08:25 AM
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Sam Buchanan Sam Buchanan is offline
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Join Date: Dec 2004
Location: North Alabama
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Quote:
Originally Posted by JDeanda View Post
Another RV-6 with wood stiffeners... we run 45 -50 PSI and we have the leak-proof inner tubes. We need to add air about every year or so. Main gear shimmy at the end of the landing roll is ever-present, but pressure does not seem to matter. Tire pressure is shockingly non-critical for most light planes. Actually, I like it on the high side because it's easier to push the airplane uphill into our hangar....
After flying my RV-6 for twenty years with a variety of tires I've found that tire pressure is shockingly critical to avoiding gear shimmy. For my plane that means less than 35 psi.
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  #10  
Old 01-22-2020, 10:18 AM
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Ironflight Ironflight is offline
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Location: Dayton, NV
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Ya’ll realize that the OP was specifically asking about RV-3 tire pressures...right?
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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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