Launch Complex 41

Launch Complex 41 (LC-41), was a launch site at Cape Canaveral used by the USAF for Titan III and Titan IV launches. In addition to satellites, Titan vehicles launched several probes from LC-41 in the 1970s, including the Helios probes to study the Sun, the Viking probes to Mars, and the Voyager planetary flyby and deep-space probes.

The Titan III launch facilities at CCAFS were built as part of an Integrate-Transfer-Launch approach intended to enable a rapid launch rate. Titan vehicles were assembled and integrated with their payloads on mobile platforms in separate buildings, then moved by rail to one of two launch pad. The Titan III facilities included LC-40, LC-41, assembly buildings including the Vertical Integration Building, and the first rail line at the Cape. The facilities were completed in 1964, and the first launch from LC-41 was of a Titan IIIC carrying four separate payloads on 21 December 1965. It was decommissioned in late 1977.

In 1986 the old mobile service tower was demolished. They built another one for the Titan IV rocket. LC-41 launched the first flight of the Titan IV. The last Titan launch from LC-41 was on 9 April 1999, when a Titan IVB launched the USA 142 early warning satellite. The IUS upper stage failed to separate, leaving the payload stranded in a useless GTO orbit.

After the last Titan launch, the complex was renovated to support the Atlas V. SLC-41 was the site of the first-ever Atlas V launch on 21 August 2002, lifting Hot Bird 6, a Eutelsat geostationary communications spacecraft built around a Spacebus 3000B3 bus.

As of 2022, the site is used by United Launch Alliance (ULA) for Atlas V launches.