Cape Canaveral Air Force Station Space Launch Complex 37 (SLC-37), previously Launch Complex 37 (LC-37), is a launch complex on Cape Canaveral, Florida. Construction began in 1959 and the site was accepted by NASA to support the Saturn I program in 1963. The complex consists of two launch pads. LC-37A has never been used, but LC-37B launched unmanned Saturn I flights (1964 to 1965) and was modified and launched Saturn IB flights (1966 to 1968), including the first (unmanned) test of the Apollo Lunar Module in space.