Australia Instrument Flight Rating (IFR) Practice Test 2025 - Free IFR Practice Questions and Study Guide

The maximum missed approach speed for Category B (CAT B) aircraft is 150 knots. This speed limit is established to ensure safety during the critical phase of a missed approach, where the aircraft needs to maintain a certain level of performance while executing the maneuver.

CAT B aircraft are typically defined as those with a stall speed of 91 to 120 knots in the landing configuration. The 150-knot limit takes into consideration the performance characteristics of these aircraft, ensuring they can safely climb away from the runway after a missed approach, while still being within operating limits for engine performance, control, and navigation.

Maintaining this speed allows pilots to manage their aircraft effectively in an environment that may be complex due to traffic and terrain considerations. This regulation is particularly important to prevent any potential conflicts with other aircraft operating in the vicinity, as adherence to these speed limits helps to facilitate safe separation and orderly traffic flow during flight operations.