Lithium, fluorine, and hydrogen. If you're going to do it, do it right.
Quote from: R7 on 02/10/2013 06:07 pmQuote from: Robotbeat on 02/10/2013 05:52 pmLithium, fluorine, and hydrogen. If you're going to do it, do it right. Hey, the idea appears to be to aim for low Isp, althought I miserably fail to get why. If higher specific impulse was always better, all of our rockets would be flashlights.The bigger the difference between exhaust speed and vehicle speed, the lower the energy efficiency. Ideally, we would begin by pushing off from an infinite mass, and match exhaust speed to vehicle speed perfectly after that.
Quote from: Robotbeat on 02/10/2013 05:52 pmLithium, fluorine, and hydrogen. If you're going to do it, do it right. Hey, the idea appears to be to aim for low Isp, althought I miserably fail to get why.
Thrust-augmentation may make sense at times.
Neat idea. Aerojet has studied it.
Quote from: Robotbeat on 02/10/2013 08:06 pm Neat idea. Aerojet has studied it.That's the TAN part in my post