[2] The rocket is capable of lofting a 79 lb (36 kg) payload to a sub-orbital trajectory with an apogee of about 71.5 miles (115 km).

During its maiden flight, it experienced an "unexpected aerodynamic effect" and crashed in the New Mexico desert after reaching only 40,000 feet (12 km).

The second launch, SL-2 originally scheduled for October 21, 2006, was successfully carried out on April 28, 2007, at 8:56 a.m. local time (14:56 UTC).

[7] The primary payload, Celestis Legacy, consisted of cremated human remains including those of astronaut Gordon Cooper and Star Trek actor James Doohan, whose ashes were also on board the ill-fated Falcon 1 when it malfunctioned in August 2008.

The third launch of SpaceLoft XL, which was conducted at 14:00 UTC on 2 May 2009, carrying student experiments and the Discovery payload for Celestis, had an electronic anomaly causing an early separation and failed to reach the correct apogee.