mrfoo wrote:

foot/pounds are a measure of torque, not velocity.

foot/pounds are a measure of torque, not velocity.

Possibly slightly late and off-topic to answer this, but what the heck.

While this part is sort of correct, both torque and kinetic energy use units of foot-pound force, being a force multiplied by a distance. (So foot-pounds, not foot/pounds. They're multiplied, not divided).

That said, Imperial or the related US customary units (please don't call them "English units" - a lot of the US unit values are different from any that were ever used in England. Somehow they came up with an even more nonsensical system where fluid ounces lost any sensible relationship to ounces of weight) just are bonkers, with pounds being both weight and force.

In metric, torque and energy are still both units of Newton-metres, it's just that the derived unit of Joules is often used in the context of energy. (Of course, Newtons are also derived: kg m s^-2)

The relationship is that a torque of 1 Nm applied through an angle of one radian requires 1 Nm of work. As radians are dimensionless, being a ratio between an arc of circumference (a length) and the radius (another length), both torque and energy have the same units.

Statistics: Posted Author: Ragnarok — Thu Feb 02, 2017 8:10 am

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If you fire this from the shoulder does the pilot give you a blast of air?

Statistics: Posted Author: Anatine Duo — Thu Feb 02, 2017 6:43 am

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Statistics: Posted Author: django — Thu Jan 05, 2017 8:47 am

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mrfoo wrote:

foot/pounds are a measure of torque, not velocity. Are you sure you don't mean feet per second?

A quick calculation assuming around 20g for an AA battery gives around 3⅓ Joules.

Or maybe you meant foot pound *force*, which is a measure of energy and not velocity, in which case that's around 81 joules. Which is rather more respectable.

foot/pounds are a measure of torque, not velocity. Are you sure you don't mean feet per second?

A quick calculation assuming around 20g for an AA battery gives around 3⅓ Joules.

Or maybe you meant foot pound *force*, which is a measure of energy and not velocity, in which case that's around 81 joules. Which is rather more respectable.

Thanks. I converted all the units to joules.

Statistics: Posted Author: MCRKilljoy — Sun Jan 01, 2017 12:59 pm

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A quick calculation assuming around 20g for an AA battery gives around 3⅓ Joules.

Or maybe you meant foot pound *force*, which is a measure of energy and not velocity, in which case that's around 81 joules. Which is rather more respectable.

Statistics: Posted Author: mrfoo — Sun Jan 01, 2017 3:16 am

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Statistics: Posted Author: MCRKilljoy — Sun Jan 01, 2017 12:43 am

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farcticox1 wrote:

Very nice looking

Very nice looking

Thank you .....when I can find a suitable tube for a longer 6mm barrel ,I'll make one up ,may have to order in a Stainless Airsoft barrel

Statistics: Posted Author: django — Wed Dec 28, 2016 8:35 pm

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Power does feel a lot better with the longer chamber , Im still having probs in that when I unhook the airline the qev fires off!, that's not good!!!. I have a spring in the QEV ,I tried the spring at the front of the diaphragm and now its back in the rear of the diaphragm . When I hook the airline up its fine and doesn't fire but when I unhook the air ,the qev fires off ,no matter what I do!?, which is just too dangerous .

Statistics: Posted Author: django — Wed Dec 28, 2016 3:12 am

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Statistics: Posted Author: Sedak — Sat Dec 24, 2016 8:44 am

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