3 ms·
High altitude balloons are great fun. I am working on a rocket launch mechanism for one in my spare time. Costs are really low. http://www.hobbyspace.com/NearS
by trapper 18y ago
High altitude balloons are great fun. I am working on a rocket launch mechanism for one in my spare time. Costs are really low.
http://www.hobbyspace.com/NearSpace/index.html http://www.hobbyspace.com/NearSpace/index.html