The Coast Guard was represented in the air show by the HH-65 Dolphin Helicopter.
The Dolphin was selected in 1979 as a replacement for the HH-52 Sea Guard. Unlike its predecessor, the Dolphin can not perform water landings.
The Dolphin carries a crew of four - pilot, co-pilot, rescue swimmer and flight mechanic.
It is used in many roles. For today's demonstration, they were showing how it would undergo a rescue operation. In this picture, the basket is being lowered to the "water".