The CH-53 Sea Stallion is the most common name for the Sikorsky S-65 family of heavy-lift transport helicopters. Originally developed for use by the United States Marine Corps, it is in service with Germany, Iran, Israel, and Mexico. The United States Air Force operated the HH-53 "Super Jolly Green Giant" during the late– and post–Vietnam-War era, updating most of them as the MH-53 Pave Low.
The dimensionally-similar CH-53E Super Stallion is a heavier-lifting, improved version designated S-80E by Sikorsky. Its third engine makes it more powerful than the Sea Stallion, which it has replaced in the heavy-lift mission.
In 1960, the United States Marine Corps began to seek a replacement for their HR2S piston-powered helicopters. On 27 January 1961, the Marine Corps began working with the other three U.S. armed services on the "Tri-Service VTOL transport", which would eventually emerge as the Vought-Hiller-Ryan XC-142A tiltwing. The design became more elaborate and the program stretched out, causing the Marines to drop out when they decided they would not receive a working machine in a satisfactory timeframe. In the end, the XC-142A, although a very innovative and capable machine, never entered production.
Sea Stallion may refer to:
Havhingsten fra Glendalough ("The Sea Stallion from Glendalough" or just "Sea Sallion") is a Danish reconstruction of Skuldelev 2, one of the Skuldelev ships and the second-largest Viking longship ever to be found. The original vessel was built in the vicinity of Dublin in around 1042, using oak from Glendalough in County Wicklow, Ireland, hence the ship's name. The reconstruction was built at the shipyard of the Viking Ship Museum in Roskilde between 2000 and 2004 and is used for historical research purposes.
A return voyage to Dublin took place over the summer of 2007. The ship left Roskilde Harbour on 1 July and arrived in Dublin on 14 August. She was put on display in the Collins Barracks, the Decorative Arts and History building of the National Museum of Ireland, from 17 August 2007 until 29 May 2008. She was then moved to the Grand Canal Dock to be prepared for the journey back to Roskilde on 29 June 2008, and shortly afterwards the National Bank of Denmark issued a 20-kroner commemorative coin in celebration of the event.