Two MV-22B Ospreys with Marine Medium Tiltrotor Squadron (VMM) 166 get refueled before continuing a training exercise at the Grand Canyon, July 24. The Grand Canyon was the turning point during the exercise with VMM-166. - Two MV-22B Ospreys with Marine Medium Tiltrotor Squadron (VMM) 166 get refueled before continuing a training exercise at the Grand Canyon, July 24. The Grand Canyon was the turning point during the exercise with VMM-166.

A K-MAX helicopter with Marine Unmanned Aerial Vehicle Squadron 1 rests in a hangar in Helmand province, Afghanistan, April 30. The K-MAX platform has two sets of rotors mounted side-by-side and turn in opposite directions. This configuration allows for superior stability and power while eliminating the need for a tail rotor. - A K-MAX helicopter with Marine Unmanned Aerial Vehicle Squadron 1 rests in a hangar in Helmand province, Afghanistan, April 30. The K-MAX platform has two sets of rotors mounted side-by-side and turn in opposite directions. This configuration allows for superior stability and power while eliminating the need for a tail rotor.