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Dana
Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA
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 Posted: Wed Feb 20, 2008 6:35 pm Post subject: Tires, was: Re: Building your own gear legs |
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At 08:41 PM 2/20/2008, John Bickham wrote:
| Quote: | ...tires. Between the Heat treated still legs and the larger tires, the
cushion and energy absorbed on landing is great. I really had trouble
knowing when I was down and rolling when I first used the new setup. You
have to experiment with the air pressure a bit. Too much air pressure
will throw you back into the air...
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This reminds me of a totally different question I've been meaning to ask.
My UltraStar, of course, has absolutely no flex to the gear legs, so the
tires are it. I have Freebird wheels and brakes, with tubeless wheelbarrow
tires. With fairly low air pressure I get adequate cushioning, but the
other day I was turning tight on the runway with the help of brakes, and
apparently twisted the tire right on the wheel enough to make it go
completely flat. The tire never came completely off the wheel, so I was
able to reinflate it with no problem. Is this a common problem? How do
you deal with this... should I be using tubes?
-Dana
--
Diplomacy: Saying "nice doggy" until you find a rock.
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John Hauck
Joined: 09 Jan 2006
Posts: 4639
Location: Titus, Alabama (hauck's holler)
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| Posted: Wed Feb 20, 2008 6:54 pm Post subject: Tires, was: Re: Building your own gear legs |
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How do
| Quote: | you deal with this... should I be using tubes?
-Dana
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Dana:
That is what I would do.
I run tubes in my tires.
john h
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_________________
John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama |
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Wade Lawicki
Joined: 27 May 2007
Posts: 31
Location: Nashville Tn.
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| Posted: Wed Feb 20, 2008 8:35 pm Post subject: Re: Tires, was: Re: Building your own gear legs |
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Dana,
I have had the same problem on several planes. Tubes help keep it from coming off the bead but, then sometimes from using low psi you will spin the tire on the rim tearing up the stem of the tube. You can usually fix that by drilling 2 small holes in the bead of the rim and put small screws into the bead of the tire to keep them from spinning under heavy breaking but, from then on you will not be able to go tubeless.
Fly Safe,
Wade
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Ed in JXN
Joined: 24 Mar 2006
Posts: 122
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| Posted: Thu Feb 21, 2008 1:39 am Post subject: Tires, was: Re: Building your own gear legs |
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Wade/All,
No need to drill holes. Go to a good hobby shop, especially one
that sells nitro cars, and buy some 'tire glue'. The stuff holds the slicks
on my 1/4-scale sprinter during burn-outs, with no air pressure
(foam-filled) (no, not sea-foam!).
Ed in JXN
MkII/503
---
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captainron1(at)cox.net
Guest
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| Posted: Thu Feb 21, 2008 7:50 pm Post subject: Tires, was: Re: Building your own gear legs |
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Its common if the air pressure is too low. I would go with custom gear legs. Slightly thinner, or longer with same thickness. There is really not much else you can do. I guess I would try wheels at low pressure with inners, but you can rip the stem off of them if the pressure is too low. Me I'd probably try to add some length through some adopter tube or sleeve to the gear. Don't know about your machine as I don't know what your gear looks like. But you can try the ideas they're free. 
Ron (TxAz)
======================================
---- Dana Hague <d-m-hague(at)comcast.net> wrote:
=============
At 08:41 PM 2/20/2008, John Bickham wrote:
| Quote: | ...tires. Between the Heat treated still legs and the larger tires, the
cushion and energy absorbed on landing is great. I really had trouble
knowing when I was down and rolling when I first used the new setup. You
have to experiment with the air pressure a bit. Too much air pressure
will throw you back into the air...
|
This reminds me of a totally different question I've been meaning to ask.
My UltraStar, of course, has absolutely no flex to the gear legs, so the
tires are it. I have Freebird wheels and brakes, with tubeless wheelbarrow
tires. With fairly low air pressure I get adequate cushioning, but the
other day I was turning tight on the runway with the help of brakes, and
apparently twisted the tire right on the wheel enough to make it go
completely flat. The tire never came completely off the wheel, so I was
able to reinflate it with no problem. Is this a common problem? How do
you deal with this... should I be using tubes?
-Dana
--
Diplomacy: Saying "nice doggy" until you find a rock.
--
kugelair.com
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Dana
Joined: 13 Dec 2007
Posts: 1047
Location: Connecticut, USA
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| Posted: Fri Feb 22, 2008 4:04 am Post subject: Tires, was: Re: Building your own gear legs |
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At 10:47 PM 2/21/2008, Ron wrote:
| Quote: | Its common if the air pressure is too low. I would go with custom gear
legs. Slightly thinner, or longer with same thickness. There is really not
much else you can do. I guess I would try wheels at low pressure with
inners, but you can rip the stem off of them if the pressure is too low.
Me I'd probably try to add some length through some adopter tube or sleeve
to the gear. Don't know about your machine as I don't know what your gear
looks like. But you can try the ideas they're free.
|
I can't without major modifications on the US as the gear is absolutely
rigid and triangulated, unlike the later Kolbs. I'll probably look into
the "tire glue".
Not a closeup but you can sorta see it here:
http://smg.photobucket.com/albums/v486/flyparafan/Kolb/?action=view¤t=DSC01307.jpg
-Dana
do not archive
--
When authorities warn you of the sinfulness of sex, there is an important
lesson to be learned. Do not have sex with the authorities.
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