Methane has higher specific impulse
, and burns cleaner.
Had hydrogen been used instead of helium, the company said the specific impulse
achieved would have been above the 600s threshold required for single-stage-to-orbit operations of a launch vehicle, which is not possible with chemical rockets.
The oxidiser: fuel (O:F) ratio moved closer to the target and a specific impulse
of 220 sec was achieved on firing number five.
Performance alterations such as increasing the combustion-chamber pressure can significantly enhance specific impulse
and payload capacity.
Space engines with higher specific impulse
will sense new science from deep space exploration quicker.
Summary: The general right of Palestinians to resist occupation is enshrined in international law, and the specific impulse
to avenge the past week's atrocities in the Gaza Strip is perfectly understandable, but those who exercise these prerogatives have a responsibility to choose targets that will not undermine their cause.
Experts say you can create a specific impulse
, which in yogic flying is to lift the body into the air.
JSC's Advanced Space Propulsion Lab has been working on the technology, known as the Variable Specific Impulse
Magnetoplasma Rocket (VASIMR).
This would be a leaky mirror, and some of the fragments would escape out the end--at least 50 percent, and Chapline hopes possibly 90 percent--producing a thrust that could have a specific impulse
up to 1 million seconds.
For these reasons it is important to determine not only the performance such as specific impulse
(Isp), density specific impulse
([rho]Isp), and ignition delay of TEA with a given oxidizer, but also the effect a solvent has on the system.
The RL10B-2 is a unique cryogenic upper-stage engine that provides 465 seconds of specific impulse
and 24,750 pounds of thrust.
The Variable Specific Impulse
Magnetoplasma Rocket -- or VASIMR -- could cut space travel time by nearly a sixth of the time currently required.