Bibliography

  • Short C-Class Empire Boats – British Aircraft of World War II
  • Century of Flight entry
  • ATLANTIC ROUTINE Flight 1937 – contemporary article on Sikorksy S42 and Empire Caledonia operating across Atlantic
  • [https://web.archive.org/web/20160406013125/http://images.google.com/hosted/life/a81e23604ed0d544.html] LIFE photos by Margaret Bourke-White of CAVALIER and its competitor the Bermuda Clipper New York area 1937
  • [https://web.archive.org/web/20170520142302/http://images.google.com/hosted/life/94b0fc16af17afd5.html] LIFE photos by Margaret Bourke-White of CALEDONIA with a Beech Staggerwing near Central Park New York City July 1937
  • [https://web.archive.org/web/20140512230039/http://images.google.com/hosted/life/64c028a70b50b424.html] LIFE colour photos by Dmitri Kessel of CLARE at the La Guardia Marine Terminal New York City, during a series of mail/courier flights it, and CLYDE, operated to New York via Newfoundland during the Battle of Britain, 1940
  • The Short Sunderland Flying Boat Describes the development of the Empire though to Sunderland through flying boats.