Why Do Planes Climb Steeply At Takeoff?

Airliners do not take off “steep.” BUT AIRLINERS DON’T HANG AROUND AT LOW ALTITUDE Jet aircraft are most efficient at high altitudes. The most fuel efficient profile any jet can fly on a cross-country trip would be to climb at its maximum rate all the way to cruising altitude, level off and pull back to cruise power, and stay there until the precise moment the engines can be pulled to idle and descend to a landing. (www.aviationrepublic.com) More...