Aerial Crane. The "Westland Sikorsky," the first commercial-type helicopter available in Europe demonstrates how it can drop its own hoisting gear and while hovering, pick up a steel girder, offering an easy method of bridging a river from the air. The aircraft accommodates a pilot and three passengers in a luxury cabin, air-conditioned and warmed. June 1, 1947. (Photo by Sport & General Press Agency, Limited).