Westland Wessex
Westland Wessex adalah helikopter versi bertenaga turbin Inggris dari Sikorsky S-58 "Choctaw", dikembangkan di bawah lisensi oleh Westland Aircraft (kemudian Westland Helicopters), awalnya untuk Royal Navy, dan kemudian untuk Royal Air Force (RAF). Wessex dioperasikan sebagai anti-kapal selam dan helikopter serba guna utilitas dalam beberapa negara, mungkin yang paling terkenal di Inggris untuk layanan sebagai pencarian dan penyelamatan (SAR) helikopter. Jenis pertama memasuki layanan pada tahun 1961.

Referensi 

 Allen, Patrick. Wessex. Airlife, 1988. ISBN 1-85310-050-1.
 Ashworth, Chris. Encyclopedia of Modern Royal Air Force Squadrons. Wellingborough, UK: Patrick Stephens Limited, 1989. ISBN 1-85260-013-6.
 Burden, Rodney A. et al. Falklands: The Air War. British Aviation Research Group, 1986. ISBN 0-906339-05-7.
 Crawford, Stephen. Twenty First Century Military Helicopters: Today's Fighting Gunships. Zenith Imprint, 2003. ISBN 0-7603-1504-3.
 Dunstan, Simon. Vietnam Choppers: Helicopters in Battle 1950-1975. Osprey Publishing, 2003. ISBN 1-84176-796-4.
 Fowler, Will. Britain's Secret War: The Indonesian Confrontation 1962 - 66. Osprey Publishing, 2006. ISBN 1-84603-048-X.
 Grey, Jeffrey. A Military History of Australia. Cambridge University Press, 2008. ISBN 0-521-69791-3.
 Harrison, Neil. "World's Biggest VTOL Carrier". Flight International, 1 May 1969, pp. 725–727.
 Halley, James J. The Squadrons of the Royal Air Force. Tonbridge, Kent, UK: Air Britain (Historians) Ltd, 1980. ISBN 0-85130-083-9.
 James, Derek N. Westland Aircraft since 1915. London: Putnam, 1991. ISBN 0-85177-847-X.
 Motum, John. The Putnam Aeronautical Review. Naval Institute Press, 1991. ISBN 1-55750-676-0.
 Ovcacik, Michal and Susa, Karel. Westland Wessex: Rotary Wings Line, 1st edition 1998, 4+ Publications, Prague Czech Republic, (in English) ISBN 80-902559-0-6.
 Piggot, Peter. Royal Transport: An Inside Look at The History of British Royal Travel. Dundurn, 2005. ISBN 1-55488-285-0.
 Plamondon, Aaron. The Politics of Procurement: Military Acquisitions in Canada and the Sea King Helicopter. UBC Press, 2010. ISBN 0-7748-5910-5.
 Taylor, John W. R. (editor). Jane's All The World's Aircraft 1965-66. London:Sampson Low, Marston, 1965.
 Thetford, Owen. British Naval Aircraft since 1912. London: Putnam, 1978. ISBN 0-370-30021-1.

Pranala luar 

 RAF Museum 
 helis.com Wessex section

Pesawat terbang Westland
Helikopter militer