Casc Long March 4c

Long March 4C (CZ-4C / LM-4C) is an active three-stage Chinese orbital launch vehicle used heavily for Sun-synchronous Earth-observation missions.^[1][2][3] It remained active as of 2026-06-16: the vehicle first flew on 2006-04-27, and a Long March 4C launched the Daqi-2 greenhouse-gas satellite on 2026-04-17.^[2][3][4] Payload capacity is 3,200 kg to Sun-synchronous orbit for both a 700 km and a 600 km reference case.^[1][2] The vehicle uses N2O4/UDMH propulsion across three stages, with 250 t liftoff mass, 48 m length, 3.35 m first- and second-stage diameter, 2.9 m third-stage diameter, and 2.9 m, 3.35 m, or 3.8 m fairing options.^[1]