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A heat gun comprises a source of heat, usually an electrically heated element or a propane/liquified petroleum gas, a mechanism to move the hot air such as an electric fan, unless gas pressure is sufficient; a nozzle to direct the air, which may be a simple tube pointing in one direction, or specially shaped for purposes such as concentrating the heat on a small area or thawing a pipe but not ...
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The North American Air Augmented VTOVL from 1963 was a similarly large craft which would have used ramjets to decrease the liftoff mass of the vehicle by removing the need for large amounts of liquid oxygen while traveling through the atmosphere. [11] From 1965, Robert Salkeld investigated various single stage to orbit winged spaceplane concepts.
The model adopted by the JSDF is the so-called standard type with a metal tube stock, and it has unique modifications such as a different shape for the barrel change lever. The side of the gun body is marked with 5.56mm Machine Gun MINIMI. A distinctive feature is the unique heat cover (upper sleeve) mounted on the top of the barrel.
Certain small aircraft that could not handle the larger Miniguns could be given the XM214 in a 300-pound (136 kg) pod. General Electric pitched the weapon to the US Navy for use on riverine craft . Company engineers proposed many mounting arrangements including open doors, in an aircraft's wings or nose, putting half a dozen guns in a modified ...
Pulsed lasers which provide a high-power burst of energy for a short period are very effective in some laser cutting processes, particularly for piercing, or when very small holes or very low cutting speeds are required, since if a constant laser beam were used, the heat could reach the point of melting the whole piece being cut.
Then localised heat is applied to the component to remove, with less heating required than from cold. Most frequently, a hot air (or hot gas) gun, with a nozzle of appropriate size and shape, is used to heat the component, with nearby components shielded from the heat if necessary, followed by removal with tweezers or a vacuum tool.
The scientists calculated that a huge reflector, made of metallic sodium and with an area of 9 square kilometres (900 ha; 3.5 sq mi), could produce enough focused heat to make an ocean boil or burn a city. [1] After being questioned by American officers, the Germans claimed that the sun gun could be completed within 50 or 100 years.