62nd Engineers rebuilt the taxiways while the 554th RED HORSE and RMK-BRJ rebuilt the runway, reducing its available length to . The 62nd Engineers also built a 46,000-barrel fuel storage area, a six-inch pipeline to the beach and two 8-inch submarine pipelines from the beach to an offshore floating mooring and discharge facility. On 12 October 1966 RMK-BMJ completed the concrete runway and 4 connecting taxiways. By the end of the year the base was fully completed with powerplant, water and sewage system, operations, accommodation and other structures. The USAF forces stationed there were under the command of the United States Pacific Air Forces (PACAF) Seventh Air Force. In addition, the United States Navy, and United States Marine Corps had aviation and other support units stationed at Phan Rang. 366th Tactical Fighter Wing Due to the delays in completion of the base, the F-4C Phantom II equipped 391st Tactical Fighter Squadron was diverted from Phan Rang to Cam Ranh Air Base and the 480th Tactical Fighter Squadron went to Da Nang Air Base. On 14 March 1966 the F-4C equipped 389th Tactical Fighter Squadron arrived at the base becoming the first USAF squadron to deploy there. On 20 March 1966 the 366th Tactical Fighter Wing was the first permanent USAF organization to be stationed at Phan Rang Air Base. The rain damage to the base in May 1966 delayed the deployment of the 391st Tactical Fighter Squadron from Cam Ranh AB and the 480th TFS from Da Nang AB. The squadrons assigned to the 366th TFW during this period were: 352d Tactical Fighter Squadron: from 15 August 1966 (F-100D/F Super Sabre) 389th Tactical Fighter Squadron Detachment 1, 612th Tactical Fighter Squadron: from 15 May 1966 (F-100) 614th Tactical Fighter Squadron: from 18 September 1966 (F-100D/F) 615th Tactical Fighter Squadron: from 16 July 1966(F-100D/F) The US population at the base increased dramatically from 118 in March 1966 to over 4,500 in September 1966. This increase led to pressure on accommodation and maintenance facilities which were still under construction; the growth of prostitution in the "sin strip" outside the base; and an increase in employment of Vietnamese on the base, growing to 1000 by the end of 1966. On 10 October 1966, the 366th TFW and the 389th Tactical Fighter Squadron moved to Da Nang AB and the 35th Tactical Fighter Wing at Da Nang AB moved to Phan Rang. 35th Tactical