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Pronunciation varies by accent · verb
(aviation, usually intransitive, of an aircraft) 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)..
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.
A cruise-climb is more efficient than the standard step climb, but is rarely used since it's much harder for ATC to manage.
Use cruise-climb when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Cruise-climb means (aviation, usually intransitive, of an aircraft) 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)..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
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.
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