The climb is the part of a flight of an aircraft, after take off, consisting of getting an Aircraft to the desired cruising[?] altitude. More generally, the term 'climb' means increasing the altitude.
... States, has adopted a Book of Confessions[?]. The BOC contains the Nicene Creed, Apostle's Creed[?], Scots Confession[?], Heidelberg Catechism[?], Second Helvetic ...