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Free floating Barrel ?
Posted: Tue Aug 02, 2016 9:16 pm
by gdavison
I see a lot of posts re "Free floating Barrel " however the engineer in me just does not get it .. thin barrel only supported by its "end" ie 7 to 10 mm of thread in a block - versus a fixed pivot point at the end of a sturdy air cylinder ?
Helps
Re: Free floating Barrel ?
Posted: Tue Aug 02, 2016 9:26 pm
by Raj
https://en.wikipedia.org/wiki/Free-floating_barrelIn the case of PCPs, the cylinder that the barrels normaly ends up getting 'pivoted' on (as you put it) is subject to varying bends in different directions as the air in the tank empties from a fill. These distortions get transferred to the barrel via the band. In PCPs like the S200, the resonance from the firing valve acting inside the air cylinder manifests on the barrel too.
Re: Free floating Barrel ?
Posted: Tue Aug 02, 2016 9:28 pm
by gdavison
Raj wrote:https://en.wikipedia.org/wiki/Free-floating_barrel
In the case of PCPs, the cylinder that the barrels normaly ends up getting 'pivoted' on (as you put it) is subject to varying bends in different directions as the air in the tank empties from a fill. These distortions get transferred to the barrel via the band. In PCPs like the S200, the resonance from the firing valve acting inside the air cylinder manifests on the barrel too.
ahhh Okey dokeys TYVM