A CH-47F leads a CH-47D over Canberra on April 19, 2016 in a symbolic flight before the CH-47D lands at the Australian War Memorial.

Boeing has delivered seven CH-47Fs to the Australian Army, including A15-304 pictured here, and has orders for a further three.

The CH-47Fs were delivered to Australia by a US Air Force C-5 Galaxy. Here Boeing Service Engineering teams prepare one of the CH-47Fs ahead of the delivery flight.

Australian Army soldier Corporal Trent Bayliss, an Aircrewman Technician with the 5th Aviation Regiment, stands in front of a CH-47F during the May 2015 commissioning ceremony at RAAF Base Townsville.