Altitude
In the back of an HC-130J Combat King II, an altimeter displays nearly 23,000 feet while a solid-red light indicates to jumpers that they are not over the landing zone, Aug. 18, 2016, in the skies over Moody Air Force Base, Ga. Training jumps are typically conducted from 9,000 to 12,000 feet, but current deployed operations require an airdrop of 20,000 feet or more. (U.S. Air Force photo by Staff Sgt. Ryan Callaghan)