Why ARCA prefers air launches instead of ground launches?
There are again, three main reasons: 1: The Helen and Stabilo rockets are using the hydrogen peroxide as a monopropellant. This does not offer high performance. By launching from a higher altitude, the engine’s specific impulse will increase. In the case of Haas rocket it is the same situation. 2: The balloon is lifting the rocket above the Earth’s dense atmosphere and there is no significant drag on the rocket. 3: A launch pad is not needed anymore.
