CAPR 70-1 Powered Aircraft Practice Test 2026 - Free Powered Aircraft Practice Questions and Study Guide

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What are the minimum taxi distances?

50 feet behind helicopters, heavy multiengine or heavy jet aircraft.

75 feet behind light single-engine aircraft; 200 feet behind light multiengine or light jet aircraft; 500 feet behind helicopters, heavy multiengine or heavy jet aircraft.

Keep clear of thrust and rotor downwash when taxiing behind other aircraft. The minimum distances protect people and ground crew from prop blast, jet blast, and rotor wash kicking up debris or causing loss of control on the ground.

This set of distances matches the hazard level of different aircraft: lighter, single-engine planes create less blast, so a shorter clearance is acceptable; light multiengine or light jets generate more power and require a longer gap; helicopters and heavier aircraft produce the strongest blasts and rotor wash, needing the greatest distance to stay safe.

Specifically, maintain 75 feet behind a light single-engine aircraft, 200 feet behind a light multiengine or light jet aircraft, and 500 feet behind helicopters, heavy multiengine, or heavy jet aircraft.

100 feet behind each category.

150 feet behind light single-engine aircraft; 300 feet behind light multiengine or light jet aircraft; 600 feet behind helicopters, heavy multiengine or heavy jet aircraft.