For what minimum test load should the static load test be conducted for additional aircraft equipment?

The static load test for additional aircraft equipment is designed to ensure that the equipment can withstand the forces it might encounter during operation without failure. Conducting this test at a load that is twice the weight of the equipment provides a significant safety margin, allowing for the assessment of the equipment's integrity and performance under stress conditions that exceed typical operational loads.

Using a test load of 2.0 times the equipment's weight aligns with industry standards and regulations, which are aimed at ensuring that aircraft components can endure unexpected situations, such as turbulence or extreme loading scenarios. This rigorous testing helps in identifying potential weaknesses in the equipment and ensures its reliability and safety when installed on the aircraft.

The other options suggest lower safety margins, which may not sufficiently guarantee the structural integrity and operational reliability of the equipment under all expected load conditions. Thus, choosing the minimum test load as 2.0 times the equipment's weight is the most prudent and aligns with established testing protocols within aviation safety practices.