What is the Vy (Take Off) speed in KIAS?

What is the Vy (Take Off) speed in KIAS?

• A. 65 KIAS
• B. 68 KIAS
• C. 70 KIAS
• D. 72 KIAS

Answer: (B)

Vy is the speed that gives the greatest climb performance during the takeoff climb—the speed you aim for after liftoff to gain altitude most efficiently. For the Diamond DA20-C1, the published takeoff Vy is 68 KIAS, meaning at maximum gross weight with flaps up this speed provides the best rate of climb after liftoff. If you try a slower speed, you won’t gain altitude as quickly because you’re not at the optimal balance of lift and drag; if you push faster than Vy, drag increases and the climb rate drops, also reducing vertical progress. Remember, Vy can change with weight, altitude, and configuration, but 68 KIAS is the standard takeoff value listed for this airplane.

Vy is the speed that gives the greatest climb performance during the takeoff climb—the speed you aim for after liftoff to gain altitude most efficiently. For the Diamond DA20-C1, the published takeoff Vy is 68 KIAS, meaning at maximum gross weight with flaps up this speed provides the best rate of climb after liftoff. If you try a slower speed, you won’t gain altitude as quickly because you’re not at the optimal balance of lift and drag; if you push faster than Vy, drag increases and the climb rate drops, also reducing vertical progress. Remember, Vy can change with weight, altitude, and configuration, but 68 KIAS is the standard takeoff value listed for this airplane.