forget all this pumper talk ..here is the ultimate limiting factor!

forget all this pumper talk ..here is the ultimate limiting factor!

Joined: April 28th, 2010, 12:23 am

May 23rd, 2012, 3:21 am #1

Last edited by robnewyork on May 23rd, 2012, 3:24 am, edited 1 time in total.
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Joined: April 1st, 2009, 3:18 am

May 23rd, 2012, 3:26 am #2

...from one pump of air. A 9mm centerfire that is. The air charge would power the firing array.

"The majority of things in our lives are created by folks no smarter than the rest. Afterall, the world is comprised, and operated by C average people intellctually, academically, and morally. These people are often the great pioneers that set the precedent for what excellence should be."
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Joined: April 28th, 2010, 12:23 am

May 23rd, 2012, 4:13 am #3

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Joined: April 28th, 2010, 12:23 am

May 23rd, 2012, 4:14 am #4

...from one pump of air. A 9mm centerfire that is. The air charge would power the firing array.

"The majority of things in our lives are created by folks no smarter than the rest. Afterall, the world is comprised, and operated by C average people intellctually, academically, and morally. These people are often the great pioneers that set the precedent for what excellence should be."
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Joined: March 1st, 2002, 12:22 am

May 23rd, 2012, 5:27 am #5

nt


dr_subsonic's pneumatic research lab

the Lunatic Fringe of American Airgunning
Southwest Montana's headquarters for Airgunning Supremacy
Proud Sponsor of team_subsonic
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Joined: April 23rd, 2012, 11:10 pm

May 23rd, 2012, 2:09 pm #6

( or my goofy 3 speed transmission downshifting as effort increases in 1.25 bore tube.)
Now, THERE's a thought !!

Pump "normally" and ten strokes gets to, say, 1000 PSI stored.
Change gears.
Pump "normally" and another ten strokes gets to, say, 1500 PSI.
Change gears again.
Pump "normally" and another ten strokes gets to 1750 PSI.
Change to last gear.
Pump "normally" and another ten gets to 2000 PSI.

Total 40 strokes all at relatively the same "effort" and obtaining pressure and volume not possible otherwise.
Oh, sure, you could have started in the last gear and pumped 200 times at less effort per stroke than all but the last ten in the hypothetical, but you just might have a do-able idea there !

Of course, carried to extreme, you end up with a 13 speed Road Ranger transmission and 20 minutes changing gears, in a gun that weighs 75 pounds, but you get muzzle energy that rivals a .44 Remington Magnum.
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Joined: April 28th, 2010, 12:23 am

May 23rd, 2012, 2:25 pm #7

nt


dr_subsonic's pneumatic research lab

the Lunatic Fringe of American Airgunning
Southwest Montana's headquarters for Airgunning Supremacy
Proud Sponsor of team_subsonic
Last edited by robnewyork on May 23rd, 2012, 2:40 pm, edited 1 time in total.
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Joined: February 9th, 2006, 10:35 pm

May 23rd, 2012, 2:28 pm #8

Anything that is complex is not useful and anything that is useful is simple - Mikhail Kalashnikov

I plink, therefore I am.
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Joined: April 28th, 2010, 12:23 am

May 23rd, 2012, 2:30 pm #9

( or my goofy 3 speed transmission downshifting as effort increases in 1.25 bore tube.)
Now, THERE's a thought !!

Pump "normally" and ten strokes gets to, say, 1000 PSI stored.
Change gears.
Pump "normally" and another ten strokes gets to, say, 1500 PSI.
Change gears again.
Pump "normally" and another ten strokes gets to 1750 PSI.
Change to last gear.
Pump "normally" and another ten gets to 2000 PSI.

Total 40 strokes all at relatively the same "effort" and obtaining pressure and volume not possible otherwise.
Oh, sure, you could have started in the last gear and pumped 200 times at less effort per stroke than all but the last ten in the hypothetical, but you just might have a do-able idea there !

Of course, carried to extreme, you end up with a 13 speed Road Ranger transmission and 20 minutes changing gears, in a gun that weighs 75 pounds, but you get muzzle energy that rivals a .44 Remington Magnum.
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Joined: April 28th, 2010, 12:23 am

May 23rd, 2012, 2:31 pm #10

Anything that is complex is not useful and anything that is useful is simple - Mikhail Kalashnikov

I plink, therefore I am.
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