Glider Towed Across AtlanticA Douglas C47 transport towing a CG 4A glider designed by Waco and built by a piano company has crossed the Atlantic, the British Air Ministry announced yesterday. It was the first “sky train” transoceanic flight in history.Manned by RAF personnel the planes made the 3,500-mile trip from Montreal to Great Britain in 28 hours flying time. The tow rope was made of S320 worth of nylon.The glider, capable of carrying a ton and a half of cargo, brought vaccine forRussia and radio, aircraft and engine parts. It has a wing span of 84 feet and, for the ocean flight, carried rubber dinghies and regular ocean emergency equipment carried by bombers. Speeds of the “train” while on test flights have averaged as high as 150 miles an hour.