They were identified as a pair of United States Navy (USN) Sikorsky MH-60S Seahawk (Knighthawk) helicopters which are flown by the Helicopter Sea Combat Squadron 12 (HSC-12) "Golden Falcons" which are presently deployed and assigned with CVW-5 on board USS Ronald Reagan (CVN 76).
The two Knighthawks were firstly spotted parked at Emerald Airport during the latter part of the morning and then later at Biloela / Thangool Airport. They look to be 167839 / NF-614 and 167871 / NF-621.
It is believed that they were flying together using the radio callsign of "Hunter 71".
Photos taken by Allanah Loch and Hayden Jones ©