Steve Wilson
Huntsville, UT
Kitfox 85DD
912A / 3 Blade Taper Tip Warp Drive
Convertible Nosewheel & Tailwheel
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Hi Steve, I have no idea on pressures, but I love the paint job! I'm a proud new owner of a mod IV that's been setting for 10 years. My first purchase was large smooth tundra style tires for my grass strip. If those are Goodyear "big plane" tires they are plenty tough. Maybe you could see how they behave by starting at 25psi and do a few touch and gos. Then drop 5psi and do it again until you get where you want to be? I wouldn't get too crazy low and blow a tire off the bead on landing though.
Jay
Jay,
Thanks for the kind remark regarding the old girl's paint. Dan Denny painted her in 1986 when she was the Kitfix factory demo. To fine tune the air pressure in her new tires I will be doing exactly as you recommend. But I'm hoping to get a head start by taping into the large pool of experience we have here at TeamKitfox.
Steve Wilson
Huntsville, UT
Kitfox 85DD
912A / 3 Blade Taper Tip Warp Drive
Convertible Nosewheel & Tailwheel
SkySteve's SPOT Page
SkySteve's You Tube Videos
Are those the 12x8.00-6 Aero Classic tires? If they are that is the same as what I run.
Depending on the season, I run 10-20 psi. 10-12 psi in the summer and 20 in the winter with my wheel-skis to give a little more clearance under the skins.
I am currently running them with tubes on my yellow plane, therefore I won't go below 10 psi to keep from slipping on the rims and shearing the valve stem.
Naw Av8r3400, they're Air Trac's. They are quite a bit wider than the 6.00x6 Air Hawks I took off. They do have tubes. I was guess 15-20 psi. You are running with 10 and haven't slipped the tubes?
Steve Wilson
Huntsville, UT
Kitfox 85DD
912A / 3 Blade Taper Tip Warp Drive
Convertible Nosewheel & Tailwheel
SkySteve's SPOT Page
SkySteve's You Tube Videos
Thanks, Bruce.
Steve Wilson
Huntsville, UT
Kitfox 85DD
912A / 3 Blade Taper Tip Warp Drive
Convertible Nosewheel & Tailwheel
SkySteve's SPOT Page
SkySteve's You Tube Videos
I run 8 to 10 lbs. More than that it bounces like crazy.
Mike Bentley
Model IV-1200
Jabiru 2200A #438
Rotec Aerosport LCH Heads
Ellison EFS-2 Throttle Body
Prince Prop (64x34)
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Thanks Cubtractor. Sounds like a lot of 10 pounders out there.
Steve Wilson
Huntsville, UT
Kitfox 85DD
912A / 3 Blade Taper Tip Warp Drive
Convertible Nosewheel & Tailwheel
SkySteve's SPOT Page
SkySteve's You Tube Videos
I am running 15 psi on the Aero Classics with tubes. Don't notice any excessive bounce if I do a normal decent landing.
Jim Ott
Portland, OR
Kitfox SS7 flying
Rotax 912ULS