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This is energy that could have instead gone into exhaust velocity.
Hydrogen is often proposed since it has the highest exhaust velocity.
This also means that rockets are able to exceed their exhaust velocity.
Exhaust velocity is best neither too low nor too high.
Notice that the effective exhaust velocity doesn't even appear in this formula.
The most efficient reaction motors are those with the highest exhaust velocity.
This ratio means that relatively small potential differences can create very high exhaust velocities.
It can decrease engine bay temperatures and increase exhaust velocity.
Additional thrust is generated by the higher resulting exhaust velocity.
The force the exhaust gas makes is called the exhaust velocity.
At such an exhaust velocity,, no great mass had to be discharged.
Performance headers work to increase the exhaust velocity as much as possible.
It is also called the effective exhaust velocity.
You get a rocket with arbitrarily high exhaust velocity!
Does it pep up the efficiency, or just the speedcombustion rate and exhaust velocity?
This reduces engine bay temperature and increases exhaust velocity.
The first is the effective exhaust velocity: the equivalent speed that the propellant leaves the vehicle.
For low exhaust velocity with respect to the mission delta-v, enormous amounts of reaction mass is needed.
However, the effective exhaust velocity allows for various losses, and notably, is reduced when operated within an atmosphere.
For rocket-like propulsion systems this is a function of mass fraction and exhaust velocity.
The effective exhaust velocity is often specified as a specific impulse and they are related to each other by:
This variability maintains a comparable exhaust velocity and back pressure throughout the engine's rev range.
For many engines the effective exhaust velocity is different from the speed that the gases actually come out of the nozzle.
The exhaust velocity, though, is enormous—more than ten times that of a chemical rocket—and this makes ion propulsion extremely efficient.
It has to have an exhaust velocity way higher than Uranus's escape velocity.