Have a look at this Flight article from 1957 on the development of the Fairey Rotodyne. Further on in the article you can marvel at the intricacies of the craft in our cutaway drawing.
There are some great illustrations of the World’s (retro) Helicopters published in 1953.
Flight ponders what the future holds for civil helicopters. Journalist Ian Parker wrote in 1985: “It is a sad fact that, when recession strikes, research and development are often among the first activities to be cut.”
Flight reports that research is under way at Eurocopter to develop “a new breed of helicopter that will offer passengers regional airliner levels of comfort, and pilots a higher degree of all-weather safety”.
Lighthouses are, by force of nature, built in remote places, and ever since the first were erected they have posed difficulties in the transfer of men and equipment. Helicopters land on the helipad of the Eddystone automatic lighthouse, 13 miles off the shore of Plymouth, UK. “Landing on the 25ft-diameter grid platforms on top of the tower lighthouses calls for good focus of attention and no vertigo.”