FT-LB

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AcronymDefinition
FT-LBFoot-Pound
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References in periodicals archive ?
Where springers pretty much top out around 30 foot-pounds, PCPs go on to 70 and even to 100 foot-pounds with ease.
In the 1990s, there was another 12 foot-pound gas spring rifle known as the Fenman, made by Theoben in England.
Barbco's BD-60/90-15 SC directional drill offers rack-and-pinion, 60,000 to 90,000 pounds of thrust and pullback, 12,000 foot-pounds of torque at 50 rpm and 60,000 foot-pounds of torque at 100 rmp.
In other words: arrow speed times arrow speed times arrow weight divided by the constant equals foot-pounds of delivered energy on target.
It has 395 horsepower and the same 400 foot-pounds of torque as the 2.7-liter engine but without the turbos.
Ten JSB Exact RS pellets averaged 830 fps, which is 20.55 foot-pounds. The spread was large, though.
My handload, sighted in at 200 yards, impacts only 1.3 inches high at 100 yards, 6.2 low at 300, 18 low at 400, and 36.1 inches low at 500 yards, where it maintains almost 1,700 foot-pounds of energy.
It can be used to break concrete, asphalt, and rock, and it can compact backfill, with adjustable impact up to 13,000 foot-pounds. Other features include mechanic/electronic stroke control, pivoting mast, stop lights and reflectors, and mechanical back-up alarm.
According to the company, the new WarP 11 motor weighs approximately 230 pounds and produces 135 foot-pounds of torque at 72 volts.
However, if you plan to hunt black bears, you could easily get by with 50 foot-pounds of kinetic energy, since bears are fairly easy to penetrate.
On the directional drill side, the company's HDR-160 features 160,000 pounds of thrust/pullback and can provide more than 29,000 foot-pounds of rotary torque.
The Quiet Trap may be used with any airgun generating less than 20 foot-pounds of energy at the standard 10 meters.