The Air Force is in the process of replacing their 80s era Sikorsky HH-60J Pave Hawk with the new HH-60W Jolly Green II.

According to Military.com, the Jolly Green II aircraft will have larger fuel tanks, upgraded avionics, navigation, and communication systems, along with new software, armor, and modern-day defensive measures. The Jolly Green II is based on the UH-60M Black Hawk but it is built for special Air Force missions.

This new helicopter was given the name of Jolly Green II, based on the “Jolly Green” nickname that the Air Force HH-3E helicopter earned in Vietnam. During Vietnam, the HH-3E Jolly Greens participated in many CSAR missions, rescuing downed pilots.

Air Force Secretary Barbara Barrett said, “Reviving the Jolly Green name honors our combat search and rescue crews past and present. In the hands of our airmen, the HH-60W ensures the rescue community can perform their duties better than ever.”