Which option correctly states the Vx takeoff speed?

Which option correctly states the Vx takeoff speed?

• A. 58 KIAS
• B. 57 KIAS
• C. 60 KIAS
• D. 44 KIAS

Answer: (B)

Vx is the speed that gives the steepest angle of climb in the takeoff configuration, used when obstacle clearance is a concern. For the DA20-C1, the published Vx under standard conditions at typical takeoff weight is about 57 KIAS, which is why 57 KIAS is the correct value. This speed sits above stall in takeoff configuration so you can climb efficiently rather than just hovering near the ground. The other speeds aren’t the published Vx for this airplane; they would either be too slow (near stall) or just not the defined Vx for takeoff. After liftoff, you’d typically transition to Vy to maximize climb rate once clear of obstacles.

Vx is the speed that gives the steepest angle of climb in the takeoff configuration, used when obstacle clearance is a concern. For the DA20-C1, the published Vx under standard conditions at typical takeoff weight is about 57 KIAS, which is why 57 KIAS is the correct value. This speed sits above stall in takeoff configuration so you can climb efficiently rather than just hovering near the ground. The other speeds aren’t the published Vx for this airplane; they would either be too slow (near stall) or just not the defined Vx for takeoff. After liftoff, you’d typically transition to Vy to maximize climb rate once clear of obstacles.