AirTalk.org Aviation discussions newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Inner Tubes          AirTalk.org Forum Index -> Owning Airplanes View previous topic :: View next topic   Author Message RST Engineering Guest Posted: Sun May 13, 2007 4:54 am    Post subject: Inner Tubes I understand there is a new class of inner tubes that do not leak as severely as the old "TSO'd crap" natural rubber that we've used since Wilbur put them on the Flyer. Anybody got a lead on who has them for relatively few AMUs for common sizes like 600-6 and so on? Jim Back to top Rip Guest Posted: Sun May 13, 2007 5:27 am    Post subject: Re: Inner Tubes RST Engineering wrote: Quote: I understand there is a new class of inner tubes that do not leak as severely as the old "TSO'd crap" natural rubber that we've used since Wilbur put them on the Flyer. Anybody got a lead on who has them for relatively few AMUs for common sizes like 600-6 and so on? Jim Michelin sells them as AirStop tubes. Chief Aircraft carries them. Rip Back to top Kyle Boatright Guest Posted: Sun May 13, 2007 5:33 am    Post subject: Re: Inner Tubes "Rip" <rquinby (AT) snet (DOT) net> wrote in message news:XXs1i.2559$UU.135 (AT) newssvr19 (DOT) news.prodigy.net... Quote: RST Engineering wrote: I understand there is a new class of inner tubes that do not leak as severely as the old "TSO'd crap" natural rubber that we've used since Wilbur put them on the Flyer. Anybody got a lead on who has them for relatively few AMUs for common sizes like 600-6 and so on? Jim Michelin sells them as AirStop tubes. Chief Aircraft carries them. Rip And they are not cheap. I believe Goodyear has come out with a version too. Desser carries both brands. IIRC, my 5" x 5" airstop tubes were $30+ each. New tires were $50/ea. It hurt paying almost as much for the tubes as the tires. Still, only having to air the tires 3 or 4 times a year is nice. KB KB Back to top Jim Burns Guest Posted: Sun May 13, 2007 6:12 am    Post subject: Re: Inner Tubes I can confirm that both the Mich. Airstops are top notch. We've had Airstops in our Aztec for several years, they go month after month , even in the winter, without loosing a single lb of pressure. I just helped install Goodyear Flight Mate Butyl tubes in a new set of Flight Custom III's on a Piper Lance, I'll stay in touch with the owners. Desser is good source for each. Jim "RST Engineering" <jim (AT) rstengineering (DOT) com> wrote in message news:134ckurtip64vfc (AT) news (DOT) supernews.com... Quote: I understand there is a new class of inner tubes that do not leak as severely as the old "TSO'd crap" natural rubber that we've used since Wilbur put them on the Flyer. Anybody got a lead on who has them for relatively few AMUs for common sizes like 600-6 and so on? Jim Back to top Doug Vetter Guest Posted: Sun May 13, 2007 3:49 pm    Post subject: Re: Inner Tubes RST Engineering wrote: Quote: Anybody got a lead on who has them for relatively few AMUs for common sizes like 600-6 and so on? Both my mechanic and Desser recommended the Aero-Classic LeakGuard tubes. We installed them a couple years ago and I can't remember the last time I filled them. Definitely more expensive than a regular tube, but worth it. -Doug -- -------------------- Doug Vetter, ATP/CFI dwvcfii (AT) yahoo (DOT) com http://www.dvatp.com -------------------- Back to top John Clear Guest Posted: Sun May 13, 2007 3:51 pm    Post subject: Re: Inner Tubes In article <134ea6mnnno0o35 (AT) corp (DOT) supernews.com>, Mike Murdock <mike (AT) nospam (DOT) net> wrote: Quote: Where else but in aviation do you have to pay extra to get inner tubes that don't leak? You gotta love it. Bicycling has the same issue. I lose ~40psi a week out of the tires on my bike. Of course, I'm starting at a much higher pressure. The tires on my road bike have a recommended pressure of 100psi. I have upgraded tubes for when I need to replace the existing ones, but it is easy enough to add air that it isn't worth trashing good but leaky tubes. John -- John Clear - jac (AT) panix (DOT) com http://www.clear-prop.org/ Back to top Jay Honeck Guest Posted: Sun May 13, 2007 6:21 pm    Post subject: Re: Inner Tubes Quote: Both my mechanic and Desser recommended the Aero-Classic LeakGuard tubes. We installed them a couple years ago and I can't remember the last time I filled them. Definitely more expensive than a regular tube, but worth it. Now that is high praise. Mary and I fill the tires at least twice a month. It's her least favorite task, since -- thanks to our Fancy Pants -- it's a real bitch to do. (Me? I just stand there and push -- or pull -- till things are lined up properly... -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" Back to top Mike Murdock Guest Posted: Sun May 13, 2007 8:03 pm    Post subject: Re: Inner Tubes Where else but in aviation do you have to pay extra to get inner tubes that don't leak? You gotta love it. -Mike "Kyle Boatright" <kboatright1 (AT) comcast (DOT) net> wrote: .... Quote: And they are not cheap. I believe Goodyear has come out with a version too. Desser carries both brands. IIRC, my 5" x 5" airstop tubes were $30+ each. New tires were $50/ea. It hurt paying almost as much for the tubes as the tires. Still, only having to air the tires 3 or 4 times a year is nice. KB Back to top Roger (K8RI) Guest Posted: Sun May 13, 2007 9:08 pm    Post subject: Re: Inner Tubes On Sun, 13 May 2007 06:49:14 -0400, Doug Vetter <dwvcfii (AT) yahoo (DOT) com> wrote: Quote: RST Engineering wrote: Anybody got a lead on who has them for relatively few AMUs for common sizes like 600-6 and so on? Both my mechanic and Desser recommended the Aero-Classic LeakGuard tubes. We installed them a couple years ago and I can't remember the last time I filled them. Definitely more expensive than a regular tube, but worth it. I put them on the Deb nigh onto two years ago? Been quite a while any way. It's been over a year since I put air in them. Late this past winter I checked them and they were still right where I had put them. Yes, they cost a bit more, but as I recall they weren't all that much more and I heartily agree, they are worth it. Quote: -Doug Back to top john smith Guest Posted: Mon May 14, 2007 4:17 am    Post subject: Re: Inner Tubes In article <1179062471.088240.247270 (AT) e51g2000hsg (DOT) googlegroups.com>, Jay Honeck <jjhoneck (AT) mchsi (DOT) com> wrote: Quote: Mary and I fill the tires at least twice a month. It's her least favorite task, since -- thanks to our Fancy Pants -- it's a real bitch to do. Hmm... I would have reworded that sentence so that there was no ambiguity as to what and whom I was referring. Back to top Jay Honeck Guest Posted: Mon May 14, 2007 6:12 am    Post subject: Re: Inner Tubes Quote: Hmm... I would have reworded that sentence so that there was no ambiguity as to what and whom I was referring. Ha! And here I was worried about that "pushing and pulling" line... ;-) -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" Back to top Dave Butler Guest Posted: Mon May 14, 2007 7:34 pm    Post subject: Re: Inner Tubes Mike Murdock wrote: Quote: Where else but in aviation do you have to pay extra to get inner tubes that don't leak? You gotta love it. My understanding is that there is an actual technical issue. The kind of rubber (butyl?) tubes that don't leak are difficult to make in small tire sizes with small radius of curvature. Dave Quote: -Mike "Kyle Boatright" <kboatright1 (AT) comcast (DOT) net> wrote: ... And they are not cheap. I believe Goodyear has come out with a version too. Desser carries both brands. IIRC, my 5" x 5" airstop tubes were $30+ each. New tires were $50/ea. It hurt paying almost as much for the tubes as the tires. Still, only having to air the tires 3 or 4 times a year is nice. KB Back to top Blanche Guest Posted: Mon May 14, 2007 8:05 pm    Post subject: Re: Inner Tubes Jay Honeck <jjhoneck (AT) mchsi (DOT) com> wrote: Quote: Both my mechanic and Desser recommended the Aero-Classic LeakGuard tubes. We installed them a couple years ago and I can't remember the last time I filled them. Definitely more expensive than a regular tube, but worth it. Now that is high praise. Mary and I fill the tires at least twice a month. It's her least favorite task, since -- thanks to our Fancy Pants -- it's a real bitch to do. I don't like the wheelpants on a cherokee either - most of the time, they're sitting in the back of the hangar. However...I took the electric air pump over to my neighborhood hardware store (strangely enough, one of the Big Box stores!) and probably the only staffer there who knew anything about tools picked out a 2-way chuck, one of those widgets that are tapered at each end to act as a splice on hoses, and (are you ready for this?) actually INSTALLED the stuff on my air pump! I think it was the most interesting activity he had all day. Cost me the price of the widgets. He was retired from the Navy, was the equivalent of an A&P in the Navy, and he told great stories of being on a carrier while he built the gadget. Now, I can add air to the tires really easy, and no longer bend the rubber valve - which forced me to buy another tire & tube in the past. Back to top Jay Honeck Guest Posted: Tue May 15, 2007 6:12 am    Post subject: Re: Inner Tubes Quote: Now, I can add air to the tires really easy, and no longer bend the rubber valve - which forced me to buy another tire & tube in the past. Hmmm. That *might* work, but the real problem is that the little hatch doors on the Fancy Pants don't line up well with the location of the valve stem. (On our old Warrior's stock wheel pants, you could reach the valve stem from under the bottom of the wheel pants. No-can-do with the Fancy Pants, which fair the wheel almost all the way to the ground...) -- Jay Honeck Iowa City, IA Pathfinder N56993 www.AlexisParkInn.com "Your Aviation Destination" Back to top Roy N5804F Guest Posted: Wed May 16, 2007 4:01 am    Post subject: Re: Inner Tubes Dave, Your on the right track Dave. I hold patents on inner tube joining machinery and as you say there is a difficulty in using a regular joining machine at the smaller sizes. Butyl inner tubes have been around since 1970. An inner tube is made from a straight length of "tube" and then joined end to end in a "joining machine" Semperit Tyres produced and licensed the first joining machines that were successful on butyl. Goodyear Tire [licensed by Semperit] was supplying "airstop" tubes through the 1970's. Butyl is a oil product and significantly lower in cost than natural rubber. However, natural rubber "joins" much more easily than butyl and therefore remained the tube to use for the aviation industry. And of course being for aviation, butyl tires are now sold at a premium, but are most definitely lower cost to make because of lower raw material cost. Roy Piper Archer - N5804F "Dave Butler" <asdf (AT) asdf (DOT) net> wrote in message news:1179153269.455449@sj-nntpcache-2.cisco.com... Quote: Mike Murdock wrote: Where else but in aviation do you have to pay extra to get inner tubes that don't leak? You gotta love it. My understanding is that there is an actual technical issue. The kind of rubber (butyl?) tubes that don't leak are difficult to make in small tire sizes with small radius of curvature. Dave -Mike "Kyle Boatright" <kboatright1 (AT) comcast (DOT) net> wrote: ... And they are not cheap. I believe Goodyear has come out with a version too. Desser carries both brands. IIRC, my 5" x 5" airstop tubes were $30+ each. New tires were $50/ea. It hurt paying almost as much for the tubes as the tires. Still, only having to air the tires 3 or 4 times a year is nice. 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