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The High Velocity Aircraft Rocket, or HVAR, also known by the nickname Holy Moses, [2] was an American unguided rocket developed during World War II to attack targets on the ground from aircraft. It saw extensive use during both World War II and the Korean War .
A rocket's required mass ratio as a function of effective exhaust velocity ratio. The classical rocket equation, or ideal rocket equation is a mathematical equation that describes the motion of vehicles that follow the basic principle of a rocket: a device that can apply acceleration to itself using thrust by expelling part of its mass with high velocity and can thereby move due to the ...
Rockets create thrust by expelling mass rear-ward, at high velocity. The thrust produced can be calculated by multiplying the mass flow rate of the propellants by their exhaust velocity relative to the rocket (specific impulse).
It turns out that rocket engines generally have truly excellent thrust to weight ratios (137 for the NK-33 engine; [90] some solid rockets are over 1000 [2]: 442 ), and nearly all really high-g vehicles employ or have employed rockets. The high accelerations that rockets naturally possess means that rocket vehicles are often capable of vertical ...
The Hydra 70 rocket is an American made 2.75-inch (70 mm) diameter fin-stabilized unguided rocket used primarily in the air-to-ground role. It can be equipped with a variety of warheads, and in more recent versions, guidance systems for point attacks.
The M549 is a high-explosive rocket-assisted (HERA) 155 mm howitzer round developed for use by the US military in order to add additional range to standard howitzers, with a maximum range 30.1 km (18.7 mi) from a M198 howitzer.
The increased speed of the rocket as opposed to those then in service – intended to reach or exceed Mach 3 [2] – was intended to remove the possibility that a high-speed aircraft might overtake its own weapons after launch, as well as improving the rocket's accuracy through providing a flatter trajectory, and reduction in its flight time. [1]
The RTV-G-4 Bumper was a sounding rocket built by the United States. A combination of the German V-2 rocket and the WAC Corporal sounding rocket, it was used to study problems pertaining to two-stage high-speed rockets. The Bumper program launched eight rockets between May 13, 1948 and July 29, 1950. [1]