What length in meters is required for a size 3 TDP?

• A. 25 m
• B. 35 m
• C. 80 m
• D. 50 m

Answer: (D)

In LZ/PZ operations, the length of the Target Drop Point (TDP) is matched to the load class to ensure there is enough room for the helicopter to approach, touch down, unload, and depart safely with proper clearance around obstacles. For a size 3 TDP, a 50-meter length provides the necessary working space for maneuvering, rotor clearance, and ground personnel to operate without crowding the path or risking contact with equipment or the rotor arc. It balances safety margins with practical use of the landing area.

The other lengths don’t fit as well: 25 meters and 35 meters are too short to provide adequate clearance and room for safe loading/unloading of a size-3 payload, while 80 meters is longer than needed and would complicate site planning or waste available space in typical LZ/PZ layouts.