Multiple Oceanic, European, Asian, African, Australian, North and South American operations: proficiencies in out-of-radar coverage, class II navigation and HF radio operations; both trained in and operated in special high altitude airports, depressurization escape procedures, reduced aircraft performance and non-standard ATC facilities The T-39/C-21A mission was similar to FAA Part 135 charter operations. We were responsible for transporting General Officers, Diplomats, Senators, Congressmen and Congresswomen throughout North America.