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First rocket engine “breadboard” using flight functional relationship Simply put, specific impulse is a measure of how much push (thrust) accumulates as you burn the fuel. Hot bleed bootstrap principle was demonstrated.
The design requirements were a thrust of 250,000 pounds, a specific impulse (i sp) of 840 seconds, and a reactor power level of 5,000 megawatts More specifically, you could say that it is the change in momentum per unit of mass for rocket fuels Of the 51 rtg s and 38 nuclear reactors launched on rockets, there have been 11 malfunctions of the satellites
All of the malfunctions were due to a problem with the vehicle or human error on the ground
In 8 of the cases, all or parts of the nuclear system reentered the earth s atmosphere. Phoebus 1a operated for 10.5 minutes at 1100 mw before unexpected loss of propellant and leading to an engine breakdown Phoebus 1b ran for 30 minutes in february of 1967. Dividing the thrust required by the specific impulse will tell us how much weight flow of propellants our engine must produce
This information determines the physical size of the engine. Specific impulse (usually abbreviated as isp) is a measure of how efficiently an engine, such as a rocket or jet engine generates thrust It is either measured in units of velocity (metres per second, or feet per second), or time (seconds). The delivered specific impulse (i sp) of the propellant is simply the total impulse divided by the propellant weight or mass
This includes specifications, engine type, and other key details.
Vibration caused by interstitial flow Problem resolved with better bundling of the core and seals. Specific impulse is a measure of efficiency for rocket engines
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