heavier-than-air
- s relating to an aircraft heavier than the air it displaces
- Twelve men had spanned the North Atlantic in heavier-than-air machines: no woman had succeeded.
- But no man has since attempted the feat of a non-stop transatlantic passage in a heavier-than-air machine, though of late years a Manhattan hotel man, Raymond Orteig, has been .
- But by last week it became evident that the first to launch a North Atlantic mail service with heavier-than-air craft will most likely be Great Britain's Imperial Airways.