What is the maximum takeoff weight of the CH-46 Sea Knight?

• A. 24,000 lbs
• B. 12,000 lbs
• C. 36,000 lbs
• D. 48,000 lbs

Answer: (A)

The maximum takeoff weight is the highest gross weight at which the helicopter is certified to lift off safely, including fuel, crew, and any payload. For the CH-46 Sea Knight, this certification limit is set at 24,000 pounds. That figure reflects what the airframe, rotor system, and engines can reliably handle during the takeoff phase, ensuring there’s enough rotor RPM margin and power to climb and maneuver without overstressing the structure.

Exceeding this limit would push the helicopter into a performance and safety envelope that the design isn’t tested or certified to handle, leading to reduced climb performance, longer takeoff distances, potential loss of control margins, and greater stress on components. Lighter weights stay well within the safe operating envelope, while heavier numbers beyond the certified limit aren’t approved because they would compromise safety and performance.