Placarded Speeds

Question 1

How does speed affect flaps?

Answer 1

The faster the aircraft the greater the force on the flap

Question 2

Does flap extension affect the force?

Answer 2

The more the flap is extended the more force it will experience
When significantly extended, the aerodynamic loads at high speeds could easily damage the aircrafts structure or the flaps

Question 3

What does the manufacturer do?

Answer 3

Sets maximum airspeed limits for all flap settings

Printed on a small placard stuck on the instrument panel or shown by coloured arcs on the airspeed indicator