You are right Chief, it was truly a maintenance nightmare. They could kneel down and load the thing up, then it could not get back up from the kneeling position. Here is a quick blurb from Google--The C-5 had the highest operating cost of any weapon system, and the trend was rising in tariff rates and reliability and maintainability costs for the C-5. The maintenance man hour per flying hour illustrates the difficulties in the C-5 force. The A models consumed 46.0 maintenance man hours per flying hour, 16.7 for the B model (CY96 data).