\<COLOUR 1> NO OF STAGES: \<COLOUR 0> 2 or 3 plus two strap-on boosters
\<COLOUR 1> PROPELLANTS: \<COLOUR 0> First two stages, aerozine/nitrogen tetroxide; third stage and boosters, solid stage)
\<COLOUR 1> PAYLOAD: \<COLOUR 0> Military satellites, comsats, interplanetary probes
\<COLOUR 1> LAUNCH SITE: \<COLOUR 0> Cape Canaveral, Florida; Vandenberg Air Force Base, California
\<COLOUR 1> COUNTRY: \<COLOUR 0> USA
\<COLOUR 1> COMMENTS: \<COLOUR 0> The most recent Titan variant; first launch (of USA 39) in June 1989; the three-stage variant uses the IUS inertial upper stage); the Commercial Titan (first launch, of Skynet 4A, in December 1989) is similar to the two-stage version; Titan 4-Centaurs use a liquid hydrogen/liquid oxygen third stage.