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The Bushmaster IV is a 40 mm chain-driven autocannon designed and built by Alliant Techsystems, based on the M242 Bushmaster, Bushmaster II and Bushmaster III. [1] [2] The Bushmaster IV fires 40×365mmR 3P (Prefragmented, Programmable, Proximity-fuzed), APFSDS-T Mk I, and APFSDS-T Mk II rounds. The 3P round will provide air burst capability and ...
The only current 40×53 mm type is the M1001, a canister round filled with one-hundred and fifteen 17-grain 2.0-inch long flechettes. During the late 1960s, Nortronics was developing the XM678 . References have listed different projectile loads ranging from thirty-two 0.24 inch carbide pellets up to fifty-four 30 grain (1.94 gram) tungsten pellets.
It is manufactured by Daikin Industries and the '40 mm anti-personnel light armour-piercing round' (ammunition length 112 mm, weight 371 g) is a multi-purpose grenade with a moulded explosive charge. There is also a '40 mm training round' available. [53] [54]
The M576 contains twenty metal pellets with an overall weight of 24 grams. [2] [3] The XM576/XM576E1 was standardized to become the M576. Normal dispersion pattern of the M576 will put 13 of 20 pellets in a 1.5 meter circle at 40 meters. [4] The remaining 7 pellets could land anywhere. [5]
A halo antenna, or halo, is a center-fed 1 / 2 wavelength dipole antenna, which has been bent into a circle, with a break directly opposite the feed point. The dipole's ends are close, but do not touch, and the ends on either side of the gap may be flared out to form a larger air gap capacitor , whose spacing is used to fine-adjust the ...
Antenna directivity is the ratio of maximum radiation intensity (power per unit surface) radiated by the antenna in the maximum direction divided by the intensity radiated by a hypothetical isotropic antenna radiating the same total power as that antenna. For example, a hypothetical antenna which had a radiated pattern of a hemisphere (1/2 ...
LAPD officers fired 40-millimeter rounds in at least nine of the 34 police shootings last year, compared with at least four times in 31 shootings the year before, the report found. It was not ...
The electric field strength at a specific point can be determined from the power delivered to the transmitting antenna, its geometry and radiation resistance. Consider the case of a center-fed half-wave dipole antenna in free space, where the total length L is equal to one half wavelength (λ/2). If constructed from thin conductors, the current ...