Note 725 — Chapter XII · Korean Reflection
Reading edition
Even as late as July 1952, the influx of Class III volunteer reserve pilots, many of whom lacked adequate recent precombat flying experience, had presented a serious wing personnel problem and resulted in on-the-job training for pilots in the VMO-6 fixed-wing section. As another measure to improve squadron operational proficiency and partially correct weaknesses of the individual pilot rotation system and fast turnover, a 100-mission ceiling was inaugurated in February 1953. This applied to aviators in the VMF/VMA tactical units, with the exception of VMF(N)-513 pilots who were rotated after 60 missions.