In 1922, Paul Leo Ortego created the first working helicopter in Alexandria and tested it on the corner of the city's Bolton and Rapides avenues. Ortego piloted the machine between 10 and 15 feet in ...

The idea of the helicopter dates back to the Renaissance—but the contraptions could not be built until the development of modern aerospace engineering during the interwar period. Few platforms in ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. A model of the helicopter invented by ...

It may surprise you, but helicopters can safely land on the small decks of ships even when the sea is rough and the vessel is rolling side to side. The secret is a Canadian invention called the Bear ...