What is the stall speed of a Boeing 737 airplane?

Answer 1

The stall speed depends on the model, weight and configuration of the 737. The stall speed with full flaps and gear down for a Boeing 737-800 is :140,000 lbs 146 KIAS, 120,000 lbs 135 KIAS and 100,000 pounds 123 KIAS. At higher weight and with the flaps up the stall speed is higher. KIAS is an abbreviation for "knots indicated air speed", the indicated air speed is linked to air pressure and temperature, so at a hot and high altitude airfield the same KIAS is a much higher true air speed. So the aircraft stalls at a higher true air speed at higher altitude, but the indicated airspeed remains the same.