What are the available flap positions and their Vfe speeds for the PC-12 NGX?

• A. 0, 15, 30, 40 degrees; Vfe 165 knots for Flaps 15; Vfe 130 knots for Flaps 30-40
• B. 0, 10, 20, 30 degrees; Vfe 140 knots for all
• C. 0, 20, 40, 60 degrees; Vfe 120 knots for all
• D. 0, 15, 30 degrees; Vfe 150 knots for all

Answer: (A)

Flaps and Vfe are tied together: Vfe is the maximum speed at which you can extend the flaps, and the allowed flap positions change the Vfe value.

For the PC-12 NGX, you have four flap settings: up, and extended positions of 15, 30, and 40 degrees. The speed limit changes with how much flap is out: at 15 degrees you can fly up to 165 knots, while at 30 or 40 degrees the limit is 130 knots. The clean (0 degree) position isn’t listed with a Vfe because Vfe refers to extended-flap configurations, and you’d use the normal, non-flap speeds in that condition.

So the correct combination is 0, 15, 30, 40 degrees, with Vfe 165 knots for 15-degree flap and Vfe 130 knots for 30- and 40-degree flaps.