Two U.S. Navy flight deck crewmen give the clear to launch signal. Two U.S. Navy flight deck crewmen, known as final checkers, give the clear to launch signal as an F/A-18F Super Hornet aircraft is prepared to launch from the aircraft carrier USS Harry S. Truman (CVN 75) during flight operations in the Atlantic Ocean on March 28, 2007. The Truman is underway in the Atlantic Ocean to conduct tailored ship's training availability, a standard used to evaluate a ship's readiness for deployment. SHARE IMAGE: Download Image: Full Size (0.03 MB) Photo By: VIRIN: 842256-N-XRK31-204.jpg Photo Gallery