Slope category 0-7 degrees allows which aircraft to land?

• A. 0-5 deg - only CH and UH can land
• B. 8-15 deg - all AC can land
• C. 15+ deg - nothing can land, must hover
• D. 0-7 deg - all AC can land

Answer: (D)

A landing zone slope category tells you how steep the ground is and which aircraft can safely touch down there. When the slope is 0 to 7 degrees, the ground is gentle enough for all aircraft types involved in the operation, including helicopters like CH and UH, to land without special adjustments. That makes this category the most permissive and appropriate for permitting landings by all aircraft.

The other ranges impose restrictions: a smaller range would exclude some aircraft, while a steeper range (15+ degrees) would generally prevent landing and require hovering or aborting the landing. So, 0-7 degrees best fits the goal of allowing every aircraft to land.