CAT IIIA SINGLE (Fail Passive) autoland minimums are:

CAT IIIA SINGLE (Fail Passive) autoland minimums are:

• A. CAT II autoland minimums: 100' DH / 1000 RVR; One autopilot; No A/THR
• B. CAT IIIA SINGLE (Fail Passive): 50' DH / 600 RVR; One autopilot; Yes A/THR
• C. CAT IIIB DUAL: 100' AH / 300 RVR; Both autopilot; Yes A/THR
• D. CAT IIIA DUAL (Fail Operational): 100' AH / 600 RVR; Both autopilot; Yes A/THR

Answer: (B)

Autoland minimums are defined by the category, the level of redundancy, and whether automatic thrust is used. For CAT IIIA when the autoland uses a single autopilot in a fail-passive setup, the system can guide the aircraft to a safe touchdown with one autopilot, but it relies on auto-throttle to manage speed and descent precisely. This combination yields a decision height of 50 feet and a runway visual range of 600 feet, with auto-throttle required. The single autopilot and A/THR arrangement provide enough precision for a CAT IIIA landing at these minimums, which is why this option is the best fit. The other choices reflect different categories, different redundancy (dual autopilots), or different thrust requirements.

Autoland minimums are defined by the category, the level of redundancy, and whether automatic thrust is used. For CAT IIIA when the autoland uses a single autopilot in a fail-passive setup, the system can guide the aircraft to a safe touchdown with one autopilot, but it relies on auto-throttle to manage speed and descent precisely. This combination yields a decision height of 50 feet and a runway visual range of 600 feet, with auto-throttle required. The single autopilot and A/THR arrangement provide enough precision for a CAT IIIA landing at these minimums, which is why this option is the best fit. The other choices reflect different categories, different redundancy (dual autopilots), or different thrust requirements.