Is anybody using 8.50 x 6.00 tires? That is what came with my plane. What pressure do our use in them?
Is anybody using 8.50 x 6.00 tires? That is what came with my plane. What pressure do our use in them?
Phil Nelson
A&P-IA, Maintenance Instructor
KF 5 Outback, Cont. IO-240
Flying since 2016
Phil, I started out with 8.50s on my Outback but didn't like them for a couple reasons. They sure looked cool but they weighed alot (as I recall I saved 14 lbs-7 per side ) just by going down one size to 8.00x6. With the IO-240 up front, weight savings anywhere you can get it is helpful. And they sure didn't like pavement-because they weighed so much it takes a bit to spin(that inertia thing) them up on landing so you get some directional control excursions on touchdown that always had me sitting up a bit taller on hard surface landings. Going down to 8's hasn't affected where I can land , (mostly grass) and they handle much better on pavement. Sold my 8.50's on Barnstormeres and they went quick. Theres another guy on this site who had a similar opinion on his experience with 8.50's and he sized down to 6.00 as i recall. (you out there Jeff?) I used 20 lbs on the 8.50's when I had them. Bruce
You guys probably already figured this out, but I meant 21x8.00-6 tires...
I have a set of tubeless Grove wheels for my Mangy project and I'm planning to run the same tires there. I don't think I'll go less than 10 psi with that setup, either.
That would be me Bruce. I'd highly recommend 8.50's to anybody who flies
off pavement a lot, and a has a desire to really fine tune their rudder pedal
skills .... In fact that's where "Whoa Baby!", and "Phew!" became part of
my regular vocabulary
I have 6.00's which I use most of the time for pavement now, sold the 8.50's,
and have a set of 8.00's in the hanger ready to try out this summer.
Regards,
Jeff
Sounds like my educated guess of starting at 25psi wasn't too far off. What do you guys think I should run with my 21" Nanco smoothies? 10psi?
Jay
yes, I've used that for years
Are these the same tires you are talking about?
http://www.desser.com/store/products...NDRA-TIRE.html
If so I'd be interested to hear actual height and how they perform?
Yup. Those are what I run. I like them very much.
They are plenty large for the strips I fly into yet they have enough carcass to handle pavement. Plus they cost a fraction of what the "big" tires cost and will last me many times as long.
The diameter of these was nearly exactly the same as my 21x12-8 ATV tires were. I can inflate them to 25 psi for about 22" diameter or at 10 psi for about 20" working diameter (factoring in the "squish" at the bottom).
Awesome. Thanks. Been trying to find information as these are essentially the same size as 8.5's without the price tag.
Seems like most people are running anywhere from 10-25psi in tires around this range without any issues. But the few I've seen that try to run the single digits typically end up with sheared valve stems and a bad day
These are far, far lighter than 8.50s, too!
As a rule I keep to 12 psi with tubes on my current plane. I have the tubeless wheels for my project and may experiment with a bit less on those.