Which type of aircraft can a size 4 TDP support?

• A. Cargo (MV-22, any CH-## AC)
• B. Small observation (any OH-## AC)
• C. Large utility/attack (UH-60, AH-64)
• D. Small utility/attack (LUH-72, AH-1)

Answer: (A)

A size 4 TDP is a large pad designed to support cargo/transport rotorcraft. That’s why it’s specified for cargo aircraft like the MV-22 Osprey and CH-series helicopters—their landing footprint and weight require the bigger landing area and structural support that a size 4 pad provides. Smaller aircraft, such as the small observation helicopters, large utility/attack, or small utility/attack types, use smaller pads and aren’t the primary fit for a size 4 TDP. So the cargo option best matches the capabilities of a size 4 TDP.