Which condition yields the lowest A/S limit among listed hydraulic-inop scenarios?

Which condition yields the lowest A/S limit among listed hydraulic-inop scenarios?

• A. 140 KIAS
• B. 150 KIAS
• C. 170 KIAS
• D. 130 KIAS

Answer: (A)

When hydraulics are inoperative, the UH-60S loses a lot of control authority. The pilot then has to rely more on manual input, which makes the aircraft harder to control and reduces the margin for error in gusts, maneuvers, or rapid trim changes. Because of that, the safe operating envelope in terms of airspeed tightens—the A/S limit becomes lower to keep you within a controllable range. Among the listed hydraulic-inop scenarios, the one that yields the lowest A/S limit is the condition that produces the greatest loss of control authority. In this set, that scenario results in an A/S limit of 140 KIAS, which is lower than the other options. The higher speeds listed correspond to scenarios with either slightly less severe hydraulic loss or other factors allowing safe operation at those speeds, so their limits are higher.

When hydraulics are inoperative, the UH-60S loses a lot of control authority. The pilot then has to rely more on manual input, which makes the aircraft harder to control and reduces the margin for error in gusts, maneuvers, or rapid trim changes. Because of that, the safe operating envelope in terms of airspeed tightens—the A/S limit becomes lower to keep you within a controllable range.

Among the listed hydraulic-inop scenarios, the one that yields the lowest A/S limit is the condition that produces the greatest loss of control authority. In this set, that scenario results in an A/S limit of 140 KIAS, which is lower than the other options. The higher speeds listed correspond to scenarios with either slightly less severe hydraulic loss or other factors allowing safe operation at those speeds, so their limits are higher.