Airsoft Canada - View Single Post - Complicated thinking: Why match cylinder porting and barrel length?

MadMax · November 20th, 2005, 21:52

Well, you're poking holes with no data or quantitative reasoning. The value is kind of limited. I'm not using any rocket science in my analysis. It's mostly highschool level physics f=ma stuff that most airsofters should be able to particapate with.

What chrony are you using to spit bbs? I can only get 32.9m/s with my optoelectronic chrony (109.5fps).

1psi equates to only 0.0199kgf ~ 0.195N. For a 380mm barrel, that's only 0.07J which works out to 26.45m/s which isn't far off from my 32.9m/s chrony result.

November 20th, 2005, 21:52	#21
MadMax Delierious Designer of Dastardly Detonations Trader rating Join Date: Dec 2001 Location: in the dark recesses of some metal chip filled machine shop	Well, you're poking holes with no data or quantitative reasoning. The value is kind of limited. I'm not using any rocket science in my analysis. It's mostly highschool level physics f=ma stuff that most airsofters should be able to particapate with. What chrony are you using to spit bbs? I can only get 32.9m/s with my optoelectronic chrony (109.5fps). 1psi equates to only 0.0199kgf ~ 0.195N. For a 380mm barrel, that's only 0.07J which works out to 26.45m/s which isn't far off from my 32.9m/s chrony result. __________________ Want nearly free GBB gas?