Which flap setting range has a KCAS limit of 300 KCAS?

Which flap setting range has a KCAS limit of 300 KCAS?

• A. 0-15 Flaps
• B. 0-45 Flaps
• C. 15-30 Flaps
• D. 30-45 Flaps

Answer: (B)

Understanding flap-speed envelopes: KCAS limits show the highest safe speed for a given flap range. When flaps are within 0 to 45 degrees, the data specify a limit of 300 KCAS. That means no matter where within that full flap span you set the flaps, you must not exceed 300 KCAS. The other ranges correspond to narrower subsets of flap positions and have their own (different) limits, so they do not match the 300 KCAS value for the entire 0–45 degree range. In short, the full 0–45 flap range is the one associated with a 300 KCAS limit.

Understanding flap-speed envelopes: KCAS limits show the highest safe speed for a given flap range. When flaps are within 0 to 45 degrees, the data specify a limit of 300 KCAS. That means no matter where within that full flap span you set the flaps, you must not exceed 300 KCAS. The other ranges correspond to narrower subsets of flap positions and have their own (different) limits, so they do not match the 300 KCAS value for the entire 0–45 degree range. In short, the full 0–45 flap range is the one associated with a 300 KCAS limit.