Evis is right, the SEAL's were inserted by an H-3 Pelican(Jolly Green Giant). It is part of the Sea King family, same nose and stuff, just that the H-3 JGG had the rear ramp, different landing gear config, etc. Used mostly by the Chair Force, I mean Air Force, during Vietnam for SAR missions. Eventually the H-3's were replaced in the Air Force by the H-53 SUPER Jolly Green Giant for the SAR role. The Coasties also flew the Pelicans, one if its unique qualities was to actually set down in the water.
George