GSLV Mk.1 [ISRO]
The indian GSLV (Geostationary Launch Vehicle) series are launch vehicles in the 2500 kg to GTO class, which feature a unusual combination of different kind of stages. The first stage consists of a large solid rocket, derived from the PSLV first stage. It is augmented by four liquid fueled strap-on boosters, which have a longer burn time than stage 1. Each booster is powered by a Vikas engine and remains connected with stage 1 during the flight. The second stage is a liquid fueled stage featuring storable propellants. It is the same as used in the PSLV and is also powered with a Vikas engine. The cryogenic stage 3 for the Mk.1 version is powered by the Russian KVD-1M engine, which was originally developed for a cryogenic version of the Proton launch vehicle. It was replaced by the Mk.2 version, which features the indian built CE7.5 engine.
→ complete list of all GSLV launches.
→ complete list of all PSLV / GSLV family launches.
|Version||Strap-On||Stage 1||Stage 2||Stage 3|
|GSLV Mk.1||4 × L40 / 4 × Vikas||GS-1 / S-125||GS-2 / Vikas||GS3 (12KRB) / KVD-1M|
No: TNo: Serial Type Date LS Payload
1 1 GSLV-D1 GSLV Mk.1(1) 20.04.2001 p Sr FLP GSat 1 Failures: Flight 1: Stage 3 shut down 10 sec. too early Launch sites: Sr = Satish Dhawan Space Center (Sriharikota Space Center), Sriharikota, Andhra Pradesh, India