What is the KCAS limit for 0-45 degree flaps?

What is the KCAS limit for 0-45 degree flaps?

• A. 250 KCAS
• B. 300 KCAS
• C. 320 KCAS
• D. 350 KCAS

Answer: (B)

Extending the flaps increases wing loading and the airframe’s susceptibility to dynamic loads, so there’s a defined maximum airspeed at which that flap setting can be used safely. The speed limit for having the flaps in the full 0 to 45 degree range is 300 KCAS, which keeps the structural loads within the certified envelope across altitudes. Exceeding this speed with flaps extended could lead to flap or wing damage due to excessive dynamic pressure. Lower values would unnecessarily constrain operation, while higher values would exceed what the aircraft is certified to tolerate. So the KCAS limit for 0-45 degree flaps is 300 KCAS.

Extending the flaps increases wing loading and the airframe’s susceptibility to dynamic loads, so there’s a defined maximum airspeed at which that flap setting can be used safely. The speed limit for having the flaps in the full 0 to 45 degree range is 300 KCAS, which keeps the structural loads within the certified envelope across altitudes. Exceeding this speed with flaps extended could lead to flap or wing damage due to excessive dynamic pressure. Lower values would unnecessarily constrain operation, while higher values would exceed what the aircraft is certified to tolerate. So the KCAS limit for 0-45 degree flaps is 300 KCAS.