| 摘要 |
The hot air balloon comprises an envelope (1) made from black plastic panels between 10 and 20 microns thick, welded or stuck together with adhesive strips. It has a lightweight metal (e.g. aluminum) ring (8) at the bottom to which a harness (2) for a prone pilot is attached. The hot air balloon comprises an envelope (1) made from black plastic panels between 10 and 20 microns thick, welded or stuck together with adhesive strips. It has a lightweight metal (e.g. aluminum) ring (8) at the bottom to which a harness (2) for a prone pilot is attached. An altitude control valve (3) at the top and a ground cable (7) both controlled by the pilot are also attached to the balloon. The pilot has a pair of wings attached to his arms for propelling the balloon and he controls the altitude valve and ground cable with his foot.
|
