Like cursed penguins, a whole barrage of helicopter designs has failed to make it. From advanced stealth helicopters that ...

HM Air, formerly known as Heli-Muster NT, has sold all 14 of its Robinson R22 helicopters as it diversifies the business.

The Vietnam War had demonstrated to the United States Air Force a need for a better CAS (Close Air Support) aircraft, along with the looming threat of the growing numbers of Soviet armor. The Army had ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Sikorsky Aircraft Corporation ...