Explanation

The largest helicopter in the world is the Russian Air Force Mil Mi-26.

• Maximum Takeoff Weight: ~56,000 kg (123,500 lbs)
• Maximum Payload Capacity: ~20,000 kg (44,000 lbs)

In terms of rotor length, the smallest helicopter is the GEN H-4, made by Gen Corporation (Japan).

• Rotor Length: 4 m (13 ft).
• Weight: 70 kg (154.32 lbs).
• Features: One seat, one landing gear, and one power unit.