 They also flew reconnaissance missions over the Baltic Sea.They returned to the United States in February 1964 and were assigned to the 58th Weather Reconnaissance Squadron at Kirtland Air Force Base, New Mexico.High altitude flights required the wearing of David Clark Company A/P22S-2 and later A/P22S-4 full pressure suits, and crew pre-flight preparations were similar to those used by U-2 and SR-71 crews.