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| | Aircraft (Site not responding. Last check: ) |
 | | Heliplanes are combination aircraft with both a rotor and wings; they can take off and land vertically, and hover, like a helicopter, but use their wings for high speed flight. |
 | | With engine lift, the aircraft defeats gravity by use of vertical thrust. |
 | | The major distinction in aircraft usage is between military aviation, which includes all uses of aircraft for military purposes (such as combat, patrolling, search and rescue, reconnaissance, transport, and training), and civil aviation, which includes all uses of aircraft for non-military purposes. |
| www.tocatch.info /en/Aircraft.htm (1940 words) |
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