Aircraft Electrical Systems When selecting hardware for attaching bonding connections to an aircraft structure, which of the following should be considered? 1. Mechanical strength. 2. Allowable power loss. 3. Ease of installation. 4. Permissible voltage drop. 5. Amount of current to be carried. 6. Type of load (continuous or intermittent). a. 1, 3, 5. b. 4, 5, 6. c. 1, 2, 3.