Flaps extended max airspeed (VFE) is what?

Flaps extended max airspeed (VFE) is what?

• A. 78 knots
• B. 92 knots
• C. 88 knots
• D. 85 knots

Answer: (D)

VFE is the maximum airspeed at which you may have the flaps extended. Extending flaps changes the wing’s lift and drag characteristics, and pushing beyond VFE can stress the flap mechanism or cause undesirable handling, so you must stay below this limit whenever flaps are down. For the Cessna 152, the published VFE with full flaps extended is 85 knots indicated airspeed. That means when the flaps are fully deployed, you should not surpass about 85 KIAS. With less flap (like partial extension), the VFE is higher, so you’d be able to fly faster with flaps not fully extended, but the value to use in approach and landing is the one for the current flap setting. So, 85 knots is the limit for the scenario of flaps extended to the maximum setting.

VFE is the maximum airspeed at which you may have the flaps extended. Extending flaps changes the wing’s lift and drag characteristics, and pushing beyond VFE can stress the flap mechanism or cause undesirable handling, so you must stay below this limit whenever flaps are down.

For the Cessna 152, the published VFE with full flaps extended is 85 knots indicated airspeed. That means when the flaps are fully deployed, you should not surpass about 85 KIAS. With less flap (like partial extension), the VFE is higher, so you’d be able to fly faster with flaps not fully extended, but the value to use in approach and landing is the one for the current flap setting.

So, 85 knots is the limit for the scenario of flaps extended to the maximum setting.