![One of two RTN MH-60S Sierras.](http://thewofa.com/wp-content/uploads/2011/08/MH-60-Thailand-640-300x181.jpg)
Sikorsky has shipped two MH-60S helicopters to the Royal Thai Navy (RTN), marking the first export delivery of the type.
The two MH-60S ‘Sierras’ will join six S-70B Seahawks already in RTN service, and will be used for a variety of missions, including logistics support, troop transport and search and rescue operations.