Restraint Criteria for left and right directions specify which Gs?

• A. 3 Gs Left/Right
• B. 8 Gs Left/Right
• C. 12 Gs Left/Right
• D. 0 Gs Left/Right

Answer: (B)

The point being tested is how the crew restraint is rated to handle side-to-side shocks and accelerations. The restraint system—lap belt plus shoulder harness—has a specified lateral load capability, which is the maximum sideways G-force it can safely withstand without allowing the occupant to move out of the seat or experience injurious loads. For left and right directions, the UH-60’s restraint criteria are eight Gs. This means the system is designed to hold a crew member secure even if the helicopter experiences a lateral acceleration up to eight times the force of gravity, such as during aggressive turns or sudden side-to-side motions. If the rating were much lower, the restraint could fail in normal maneuvering; if it were much higher, the hardware would be unnecessarily heavy or bulky and still not reflect actual operating needs. A zero, or very low, G rating would provide no real protection against lateral movement, which is unsafe, while a rating like three Gs would be insufficient for typical flight loads, and a rating like twelve Gs would exceed practical design limits for this restraint system.