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Rate of fire may also be affected by ergonomic factors. For rifles, ease-of-use features such as the design of the bolt or magazine release can affect the rate of fire. For artillery pieces, a gun on a towed mount can usually achieve a higher rate of fire than the same weapon mounted within the cramped confines of a tank or self-propelled gun ...
The flame speed is the measured rate of expansion of the flame front in a combustion reaction. Whereas flame velocity is generally used for a fuel, a related term is explosive velocity, which is the same relationship measured for an explosive. Combustion engineers differentiate between the laminar flame speed and turbulent flame speed.
The resulting weapon, designated M134 and known as the "Minigun", could fire up to 6,000 rounds per minute without overheating. The gun has a variable (i.e. selectable) rate of fire, specified to fire at rates of up to 6,000 rpm with most applications set at rates between 3,000 and 4,000 rounds per minute.
A fast-spreading wildfire that erupted this week northwest of Los Angeles roared from nothing to nearly 10,000 acres − in a matter of hours.
The wildfire had grown to 40 to 50 acres with a dangerous of rate of speed, Cal Fire officials initially said. About 30 minutes later, California officials said the fire was moving at a critical ...
Bump fire stocks can be placed on a few common weapons such as the AR or AK families. They can achieve rates of fire between 400 and 800 rounds per minute depending on the gun. [1] By 2018, bump fire stocks in the United States were sold for around $100 and up, with prices increasing prior to enactment of federal regulation. [1] [10]
This simplified model neglects the change of temperature and thus the burning rate across the deflagration front. This model also neglects the possible influence of turbulence . As a result, this derivation gives only the laminar flame speed —hence the designation S l {\displaystyle S_{l}\;} .
For projectiles in unpowered flight, its velocity is highest at leaving the muzzle and drops off steadily because of air resistance.Projectiles traveling less than the speed of sound (about 340 m/s (1,100 ft/s) in dry air at sea level) are subsonic, while those traveling faster are supersonic and thus can travel a substantial distance and even hit a target before a nearby observer hears the ...