Airspeeds for Safe Operation

The normal procedures open with a short list of speeds that recur through every phase of flight. They apply to a standard airplane at gross weight, in standard conditions at sea level.

At a glance

• Best rate of climb79 KIAS
• Best angle of climb63 KIAS
• Turbulent air operating speed111 KIAS
• Maximum flap speed103 KIAS
• Landing final approach speed (flaps 40°)63 KIAS
• Maximum demonstrated crosswind17 KTS

Reading the list

Two pairs are worth memorizing together. Best angle of climb and the flaps-40° final approach speed are both 63 KIAS. The turbulent air operating speed, 111 KIAS, is the same figure as the maneuvering speed at 2440 lb.

All six figures are for a standard airplane at gross weight, in standard conditions at sea level.

Check yourself

• What are the best rate and best angle of climb speeds?

• What is the turbulent air operating speed?

• What is the final approach speed, and with what flap setting?

• What is the maximum demonstrated crosswind?

Study aid — always fly your aircraft's current AFM/POH.