Last week we reported the delivery of superyacht Alamshar, by Devonport Royal Dockyard in Plymouth. Although the delivery of a new 50 metre superyacht is always interesting, the delivery of Alamshar is all the more interesting, given the fact that her propulsion package is one of the most powerful ever put on a 50 metre yacht. It is made up of six gas turbines.
During the construction of the yacht, different combinations of gas turbines were considered but the final choice came down to the Pratt and Whitney model ST40M, extensively used in the Norwegian Navy together with the Rolls Royce 601-KF11. This change les to a substantial modification to the Renk reduction gears.
Alamshar’s impressive propulsion package consists of three P&W ST40M gas turbines, three Rolls Royce 601-KF11 gas turbines, which through the use of three BUSL 130/70-2 Renk – COGAG gears, power three KaMeWa 112 SII waterjets, which power her to an impressive 45 knot top speed.
As can be seen on these photos, the engines produce a significant amount of heat.
The yacht's owner, Prince Shah Karim Al Hussaini Aga Khan, is no stranger to fast yachts. He currently owns Shergar, which has always been kept in immaculate condition.
SuperYacht Times - The State of Yachting 2020
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