On Sunday, March 3, 2019 at 10:30:54 AM UTC-8, OHM Ω http://aviation.derosaweb.net wrote:
Thanks the comments. This is why I ask RAS to take a look at my ravings.

It seems the general current consensus is that the air lines do not need any type of constricting band at barbed fittings. And might even be counter-productive.

So I updated my presentation to that effect. Who knows - maybe this dictum will be reversed upon future consideration.

http://aviation.derosaweb.net/presentations#airlines

- John OHM Ω

John,

Great article seeyou in Nephi.

Richard
www.craggyaero.com