Complexes 15, 16, 19, and 20 were built for the Titan ballistic missile program. The sites were accepted by the U.S. Government between February and mid-September 1959. All four sites supported Titan I launches in 1959 and the early 1960s. Complex 20 was modified to support four Titan IIIA flights which took place between 1 September 1964 and 7 May 1965. The site was deactivated in April 1967, but it got a new lease on life toward the end of the 1980s. Complex 20 was selected for the Starbird program in 1987, and it supported a Starbird launch on 18 December 1990. Between 18 June 1991 and 29 May 1993, the complex supported the commercial Joust-1 launch and four Red Tigress and Red Tigress II missions sponsored by the Strategic Defense Initiative Organization. Much of Complex 20's electronic equipment and both of its rail launchers were removed in 1995, rendering the site inactive.

• 1960 July 1 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Destroyed 90 m above pad. Titan I J-2 Apogee: 1.00 km (0.60 mi). Titan 1 J (Mk 4 RV)

• 1960 July 28 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. 130 km range. Titan I J-4 Apogee: 100 km (60 mi). Titan 1 J (Mk 4 RV)

• 1960 August 30 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Titan I J-5 Apogee: 1,000 km (600 mi).

• 1960 October 7 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Titan I J-3 Apogee: 1,000 km (600 mi).

• 1960 December 20 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Failure. Titan I J-9

• 1961 February 10 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Titan I AJ-11 Apogee: 1,000 km (600 mi).

• 1961 March 3 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Failure. Titan I AJ-12

• 1961 March 31 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Failure. Titan I AJ-15

• 1961 May 23 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Titan I AJ-16 Apogee: 1,000 km (600 mi).

• 1961 July 20 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Titan I AJ-18 Apogee: 1,000 km (600 mi).

• 1961 August 3 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Titan I AJ-19 Apogee: 1,000 km (600 mi).

• 1961 September 6 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Titan I AJ-17 Apogee: 1,000 km (600 mi). Range: 11,300 km (7,000 mi). USAF Titan successfully launched from Atlantic Missile Range, making 6,100-mile flight.

• 1961 September 28 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Titan I AJ-20 Apogee: 1,000 km (600 mi).

• 1961 October 24 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Titan I AJ-21 Apogee: 1,000 km (600 mi).

• 1961 November 21 - Mk 4 re-entry vehicle test mission Launch Vehicle: Titan 1. Titan I AJ-22 Apogee: 1,000 km (600 mi).

• 1961 December 13 - NTMP TV Test mission Launch Vehicle: Titan 1. Titan I AJ-23 Apogee: 1,000 km (600 mi).

• 1964 September 1 - Titan 3A Transtage 1 Launch Vehicle: Titan 3A. Transtage pressurisation failure caused premature shutdown.. Titan IIIA 3A-2

• 1964 December 10 - Titan 3A Transtage 2 Launch Vehicle: Titan 3A. Titan IIIA 3A-1 Apogee: 180 km (110 mi). Launch vehicle test. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• 1965 February 11 15:19 - LES 1 Launch Vehicle: Titan 3A. Titan IIIA 3A-3 Apogee: 2,809 km (1,745 mi). Lincoln Experimental Satellite; communications experiments. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A).

• 1990 December 18 03:37 - LACE UVPI Target Target mission Launch Vehicle: Starbird. Apogee: 500 km (310 mi).

• 1991 June 18 11:34 - Microgravity mission Launch Vehicle: Prospector. Failure.. Prospector JOUST 1 Apogee: 1.00 km (0.60 mi). Material and biological experiments.

• 1991 August 20 09:45 - Target mission Launch Vehicle: Aries. Failure.. Aries Red Tigress 1A Apogee: 2.00 km (1.20 mi).

• 1991 October 14 10:17 - Target mission Launch Vehicle: Aries. Aries Red Tigress 1B Apogee: 320 km (190 mi). LEAP-1. Missile Tracking and Discrimination for SDIO.

• 1993 May 23 09:17 - Target mission Launch Vehicle: LCLV Sounding Rocket. LCLV Red Tigress 2A Apogee: 378 km (234 mi).

• 1993 May 28 08:34 - Target mission Launch Vehicle: LCLV Sounding Rocket. LCLV Red Tigress 2B Apogee: 390 km (240 mi).

• 2000 January 21 16:22 - Education mission Launch Vehicle: Super Loki. Super Loki LiteStar Apogee: 75 km (46 mi).

• 2000 December 12 20:00 - Test mission Launch Vehicle: Super Loki. Super Loki LiteStar Apogee: 75 km (46 mi).

• 2000 December 13 16:00 - Test mission Launch Vehicle: Super Loki. Super Loki LiteStar Apogee: 75 km (46 mi).