Meaning of cruise-climb | Babel Free

Definitions

To slowly but continuously climb during cruise flight as the aircraft's weight decreases due to fuel burnoff (done because flight at higher altitudes is more efficient but requires a lighter aircraft).

intransitive, usually

Examples

“For a transatlantic crossing, the Concorde would be assigned a ~15,000-foot block of altitude; it started out at flight level 450 and gradually cruise-climbed up to between FL570 and FL600 over the mid-Atlantic before beginning to descend.”

CEFR level