Tail Dolly Tire

On Mon, 01 Aug 2016 13:48:30 -0700, Casey wrote:

Which I would try nitrogen to see if that held up better than air.
Maybe then only a **** of nitrogen once a year would be good.

Nitrogen is slightly lighter than oxygen so, to a first approximation,
should leak out a bit faster than air. However because nitrogen, unlike
air, doesn't degrade rubber, it may be preferable for this reason.

Either air or nitrogen will leak out a lot slower than helium, which
diffuses through solids three times faster than air. Only hydrogen has a
higher gaseous diffusion rate (154% of helium's rate).

However, when you take cost and availability at the airfield into
account, putting air into glider tyres may turn out to be the better
inflation method.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

Went to a hardware store solid tire on the tail dolly and Amazon solid tire on the wing wheel years ago. Tired of fixing flats. Yes, they're heavier (a good thing on the wing wheel). They bounce more. But hassle free. Life is short.

Solid tire on the trailer dolly wheel also. Now all I need is run-flat tires for the trailer and a solid tire for the glider main wheel and I'm done.

Oops, there's the glider tail wheel. And the van....

Chip Bearden
ASW 24 "JB"