Spruce Goose To gain the needed expertise in designing ... The plane was so large that it was possible for engineers to walk inside the wing and service the engines in flight.

The H-4 Hercules, also known as the Spruce Goose, was the world's largest plane during its time, featuring a wingspan of 320 feet and 11 inches. Despite being built for war, the Spruce Goose never ...

The hangar, which once held the famed Spruce Goose plane, as it was derisively called, has been out of use for years. The Spruce Goose was the largest wooden plane ever built, due to wartime ...