What are the ratings for deck tie-down assemblies?

• A. Two primary tiedown assemblies, both rated 8,000 lbs
• B. Two primary tiedown assemblies, both rated 10,000 lbs
• C. One tiedown assembly rated 10,000 lbs
• D. Three tiedown assemblies rated 10,000 lbs

Answer: (B)

Deck tie-downs are sized to handle the maximum restraining loads the aircraft can experience on a deck, so securement uses two primary tiedown assemblies to share and balance those forces. Each primary tiedown is rated at 10,000 pounds, giving a total practical restraint of 20,000 pounds when two are used. This setup provides redundancy and even load distribution, which is essential for withstanding wind, waves, and movement on deck. Using two tiedowns, both at 10,000 pounds, matches the standard requirement for securing aircraft on deck, whereas a single tie-down or a different combination doesn’t meet the typical redundancy and capacity needs.