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The M142 High Mobility Artillery Rocket System (HIMARS / ˈ h aɪ m ɑːr z /) is a light multiple rocket launcher developed in the late 1990s for the United States Army and mounted on a standard U.S. Army Family of Medium Tactical Vehicles (FMTV) M1140 truck frame.
It uses solid propellant and is 13 feet (4.0 m) long and 24 inches (610 mm) in diameter, and the longest-range variants can fly up to 190 miles (300 km). [9] The missile can be fired from the tracked M270 Multiple Launch Rocket System (MLRS) and the wheeled M142 High Mobility Artillery Rocket System (HIMARS).
Maximum speed 100 kilometres per hour (62 mph) [ 1 ] The Global Mobile Artillery Rocket System (GMARS, / ˈ ɡ m ɑːr z / ) is a wheeled multiple rocket launcher built and designed by Rheinmetall and Lockheed Martin , with them first partnering up in 2023.
In 2009 the US Army test fired the SL-AMRAAM from a HIMARS artillery rocket launcher as a common launcher, as part of a move to switch to a larger and more survivable launch platform. [3] [4] Since the missile is launched without the benefit of an aircraft's speed or high altitude, its range is considerably shorter.
Both Lockheed Martin and the U.S. Army report that the GMLRS has a maximum range of 70+ km (43+ mi). [71] [72] According to a U.S. Department of Defense document the maximum demonstrated performance of a GMLRS is 84 km (52 mi), [73] a figure also reported elsewhere. [55] [64] Another source reports a maximum range of about 90 km (56 mi). In ...
With the United States withdrawal from the Intermediate-Range Nuclear Forces Treaty, the range of the PrSM is to be increased beyond the 310 mi (500 km) limitation imposed by the treaty. [ 8 ] In June 2020, the Army had begun testing a new multi-mode seeker, an upgrade for the Precision Strike Missile.
To find the angle giving the maximum height for a given speed calculate the derivative of the maximum height = / with respect to , that is = / which is zero when = / =. So the maximum height H m a x = v 2 2 g {\displaystyle H_{\mathrm {max} }={v^{2} \over 2g}} is obtained when the projectile is fired straight up.
The M31 had a range between 3.4 and 15.4 mi (5.5 and 24.8 km). Early tests exhibited more scatter on target than was acceptable when carrying conventional payloads. Development of an upgraded Honest John, M50, was undertaken to improve accuracy and extend range. The size of the fins was greatly reduced to eliminate weathercocking. Increased ...