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A nozzle extension is an extension of the nozzle of a reaction/rocket engine. The application of nozzle extensions improves the efficiency of rocket engines in vacuum by increasing the nozzle expansion ratio.
The following letter indicates the filament or cathode type, or the fill gas or other construction detail. The coding for vacuum devices differs between Philips (and other Continental European manufacturers) on the one hand and its Mullard subsidiary on the other. Philips vacuum devices: A; Microwave tubes: Output power <1W
When the projectile reaches the vacuum port its momentum causes it to continue past and break through the bursting disk towards the target. [1] A lightweight bursting disk such as a piece of paper can be secured simply by the vacuum action when it is held against the barrel. The maximum velocity the projectile reaches is about 650 mph (1,050 km/h).
The beam confining plates are the silver coloured structures to the left and right Comparison of anode characteristic of beam power tube and power pentode Twin beam tetrode RCA-815, used as the bias oscillator tube in the Ampex Model 300 "bathtub" 1/4" full-track professional audio tape recorder Internal Construction of 4CX250B radial beam ...
The Space Shuttle Solid Rocket Booster (SRB) was the first solid-propellant rocket to be used for primary propulsion on a vehicle used for human spaceflight. [1] A pair of them provided 85% of the Space Shuttle's thrust at liftoff and for the first two minutes of ascent.
Materials for use in vacuum are materials that show very low rates of outgassing in vacuum and, where applicable, are tolerant to bake-out temperatures. The requirements grow increasingly stringent with the desired degree of vacuum to be achieved in the vacuum chamber. The materials can produce gas by several mechanisms.
"Vacuum degassing is the process of removing gases from compounds using vacuum which become entrapped in the mixture when mixing the components." [2] To assure a bubble-free mold when mixing resin and silicone rubbers and slower-setting harder resins, a vacuum chamber is required. A small vacuum chamber is needed for de-airing (eliminating air ...
Manifold vacuum, or engine vacuum in a petrol engine is the difference in air pressure between the engine's intake manifold and Earth's atmosphere. Manifold vacuum is an effect of a piston's movement on the induction stroke and the airflow through a throttle in the intervening carburetor or throttle body leading to the intake manifold. It is a ...