The first helicopter certified for civilian use was the legendary Bell 47 back in 1946. In the years since, helicopters have undergone a load of changes in the intervening years, adding more space, ...
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 ...
Between June 15 and July 29, 1945, six Army Air Forces pilots flying experimental Sikorsky helicopters evacuated between 75 and 94 wounded American soldiers from the Philippine jungles while under ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback