15 October 1966, the 460th TRW assumed aircraft maintenance responsibilities for Tan Son Nhut AB, including being responsible for all depot-level aircraft maintenance responsibility for all USAF organizations in South Vietnam. In addition to the reconnaissance operations, the 460th TFW's base flight operated in-theater transport service for Seventh Air Force and other senior commanders throughout South Vietnam. The base flight operated T-39A Saberliners, VC-123B Providers (also known as the "White Whale"), and U-3Bs between 1967 and 1971. Photographic reconnaissance 45th Tactical Reconnaissance Squadron: 30 March 1966 – 31 December 1970 (RF-101C Tail Code: AH) 12th Tactical Reconnaissance Squadron: 2 September 1966 – 31 August 1971 (RF-4C Tail Code: AC) On 18 September 1966, the 432d Tactical Reconnaissance Wing was activated at Takhli Royal Thai Air Force Base, Thailand. After the 432d TRW activated it took control of the reconnaissance squadrons in Thailand. With the activation of the 432d TRW, the 460th TRW was only responsible for RF-101 and RF-4C operations. In 1970 the need for improved coordinate data of Southeast Asia for targeting purposes led to Loran-C-equipped RF–4Cs taking detailed photographs of target areas which were matched with the Loran coordinates of terrain features on the photo maps to calculate the precise coordinates. This information was converted into a computer program which by mid-1971 was used by the 12th Reconnaissance Intelligence Technical Squadron at the base for targeting. Electronic reconnaissance A few months after the 460th TRW's activation, two squadrons activated on 8 April 1966 as 460th TRW Det 2: 360th Tactical Electronic Warfare Squadron: 8 April 1966 – 31 August 1971 (EC-47N/P/Q Tail Code: AJ) 361st Tactical Electronic Warfare Squadron: 8 April 1966 – 31 August 1971 (EC-47N/P/Q Tail Code: AL) (Nha Trang Air Base) 362d Tactical Electronic Warfare Squadron: 1 February 1967 – 31 August 1971 (EC-47N/P/Q Tail Code: AN) (Pleiku Air Base) Project Hawkeye conducted radio direction finding (RDF), whose main target were VC radio transmitters. Before this program RDF involved tracking the signals on the ground. Because this exposed the RDF team to ambushes, both the US Army and USAF began to look at airborne RDF. While the US Army used U-6 Beaver and U-8 Seminole aircraft for its own version of the Hawkeye platform, the USAF modified several C-47 Skytrains. Project Phyllis Ann also used modified C-47s, however, the C-47s for this program were highly modified with an advanced navigational and reconnaissance equipment. On 4