抄録
We have been developing a small non-combustion rocket considering safety. In general, students face danger in rocket projects because the rocket engine has the combustion process. Focusing on safety, economy and ecology, we study a non-combustion rocket engine using LN_2 and H_2O. LN_2 is for the propellant and H_2O is for the heating source. We call the engine CEES engine (Cryogenic, Economy, Ecology, Safety). We designed and developed a small rocket equipped with the CEES engine. On March 20^<th>, we launched the CEES rocket. As the result, the CEES rocket successfully reached about 60m high. The successful launch of the small rocket using non-combustion engine is the first in the world
