Private Pilot Flight Training and Instruction Flight Training Article Library | Back To 4VFR.COM Minimum Controllable No maneuvers below 1500í Stall horn whimpering at all times Power added as required to hold altitude in 10-degree maximum banks Headings + 10 degrees MCA means Minimum Controllable Airspeed (in a particular configuration). You can do it with all the flaps or none. You are flying on the edge of a stall for a prolonged period. The stall horn should be whimpering, the controls should be mushy. MCA teaches precise aircraft control at the slow end of the envelope. MCA differs from slow flight that is performed at 1.3 vso. Written by Gene Whitt Flight Training Article Library | Back To 4VFR.COM