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F.7.10.1 Required Loads
a. The attachment points for the Shoulder Belts and Lap Belts must support a load of 13 kN before failure.
b. The attachment points for the Anti-Submarine Belts must support a load of 6.5 kN before failure.
c. If the Lap Belts and Anti-Submarine Belts are attached to the same attachment point, then this point must support a load of 19.5 kN before failure.
F.7.10.2 Load Testing
The strength of Lap Belt, Shoulder Belt, and Anti-Submarine Belt attachments must be proven by physical tests where the required load is applied to a representative attachment point where the proposed layup and attachment bracket are used.
a. Edges of the test fixture supporting the sample must be a minimum of 125 mm from the load application point (load vector intersecting a plane).
b. Test load application:
Must be representative of the harness direction as installed in the cockpit
May be normal or parallel to the test sample
c. The width of the Shoulder Harness test sample must not be any wider than the Shoulder Harness "panel height" (see Structural Equivalency Spreadsheet) used to show equivalency for the Shoulder Harness mounting bar.
d. Designs with attachments near a free edge must not support the free edge during the test.
The intent is that the test specimen, to the best extent possible, represents the vehicle as driven at competition. Teams are expected to test a panel that is manufactured in as close a configuration to what is built in the vehicle as possible