In late 1963, a study of the TACS revealed one major deficiency, that being a slow reaction time. To correct this, a new system called the VNAF Air Request NET was implemented in May 1964 by 2AD/VNAF. This system to monitor these requests and stopping them in a five minute period if desired. The number of ALO/FAC’s were increased and the new system was implemented in all Corps areas. Tactical Air Control Parties, with ground radio equipment were sent into the field starting in June 1964 and by the end of 1964, TACP’s were in all four Corps areas.