According to the Museum’s website (which also provides technical specifications):
THIS AIRCRAFT IS ON LOAN FROM THE NATIONAL NAVAL AVIATION MUSEUM, PENSACOLA, FLORIDA
The Seasprite is a ship-based helicopter with anti-submarine and anti-surface threat capability, including over-the-horizon targeting. It was also used for search and rescue missions. It was designed to be a fast, all-weather utility craft for the U.S. Navy.
Taken with a Sony RX100 M3.