What type of aircraft can a size 5 TDP support?

• A. Small observation (any OH-## AC)
• B. Cargo (MV-22, any CH-## AC)
• C. Sling loads and unknown AC
• D. Large utility/attack (UH-60, AH-64)

Answer: (C)

TDP size defines what kind of operations the landing or pickup zone can safely support, with size five designed for flexibility in equipment and aircraft. A size five is the most suitable for sling-load tasks and for aircraft you don’t know in advance, because external loads require a clear, adaptable footprint and ample maneuvering room around the hover area to accommodate different rigging, line lengths, and rotor wash considerations. This makes it the best fit when you’re handling sling loads or arriving aircraft that aren’t predetermined.

The other options point to specific aircraft types or mission profiles that would normally use different, more specialized footprints rather than a flexible, all-purpose size five.