The hot-air balloon was inventive, but I doubt that it would have worked. My main concern was the type of fuel used. Mac used oxy-acetylene from the welding tanks. Hot air balloons are fueled with propane that is turned into a vapor before being ignited by the burners. The burners are essential in creating the extreme heat needed for lift. Macs balloon didn't even have burners. Besides that, getting a balloon filled for takeoff is quite a chore without the aid of a fan. It can be done manually by flapping the sides to get air in the balloon, but this is difficult and requires many hands. It is my favorite Macgyverism, but I'm doubting the feasibility of it.
|