wrote on 12/6/2019 6:52 AM:
If it was any cylinder except the steel one you have, I would just say bite the bullet and replace it with a new aluminum cylinder. Unfortunately, the receptacle in the LS-3 ONLY accepts that particular size, and they are difficult to find. The aluminum equivalent is too large in diameter to fit in the mount socket, and modifying the 'glass is a difficult job that brings its own problems with getting approval for the change. Where are you located? I might be able to direct you to a hydrotest facility that won't make you jump through flaming hoops. (Never a good idea with an O2 cylinder :-)

Expensive, perhaps, but can a cylinder that fits be purchased from Europe? In one
of my older gliders, a medical bottle would barely fit, but it did go in.

--
Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me)
- "A Guide to Self-Launching Sailplane Operation"
https://sites.google.com/site/motorg...ad-the-guide-1