Maximum weight of sonobuoys in each rack is ____ lbs.

• A. 1,600 lbs
• B. 2,000 lbs
• C. 1,980 lbs
• D. 1,400 lbs

Answer: (C)

The weight limit per sonobuoy rack is determined by structural and ejection-system safety margins. The maximum allowed per rack is 1,980 pounds, which is the published figure used to ensure the rack, its attachment points, and the aircraft structure can safely handle the combined load during flight and deployment. This value factors in the weight of the buoys themselves plus rack hardware and provides a small margin for tolerances and variations in buoy weight.

Choosing a higher value would push the rack beyond its design limit, risking damage or failure, while lower values would unnecessarily constrain payload. When planning loads, also consider the total weight across all racks within the aircraft’s gross weight and balance limits.