GLSV Mk III missile

GLSV Mk III missile

Indian Space Research Organization (ISRO) has successfully launched its most heavily rocket GSLV Mark-3. GSLV Mark-3 flew off with the communications satellite GSAT-19. GSLV Mk3 is the most heavily rocket in India.

This rocket carrying 3,136 kilograms of communication satellite GSAT-19 with you. So far, ISRO had to rely on foreign projectors to launch communications satellites weighing more than 2,300 kg. GSLV MK3-D1 has the ability to carry payloads up to 4000 kg in geostationary orbit.

GSLV Mk III is designed to carry 4 ton class of satellites into Geosynchronous Transfer Orbit (GTO) or about 10 tons to Low Earth Orbit (LEO), which is about twice the capability of GSLV Mk II.

The two strap-on motors of GSLV Mk III are located on either side of its core liquid booster. Designated as ‘S200’, each carries 205 tons of composite solid propellant and their ignition results in vehicle lift -off . S200s function for 140 seconds. During strap-ons functioning phase, the two clustered Vikas liquid Engines of L110 liquid core booster will ignite 114 sec after lift -off to further augment the thrust of the vehicle. These two engines continue to function after the separation of the strap-ons at about 140 seconds after lift -off.

Vehicle Specifications

Height : 43.43 m
Vehicle Diameter : 4.0 m
Heat Shield (Payload Fairing) Diameter : 5.0 m
Number of Stages : 3
Lift Off Mass : 640 tonnes


The name of PSLV is a polar satellite launch vehicle and the name of GSLV is a geo-synchronous satellite launch vehicle.

Generation of PSLV Mass: 320 tons (XL) and GSLV elevation mass: 414.75 tonnes.

PSLV is used to launch satellites GSLV is used to launch satellites.

In PSLV, the stage number is four and the GSLV has phase number 3.

Diameter of PSLV: Diameter of 2.8 m and GSLV is less than that.

PSLV’s first flight took place on September 20, 1993, and the first flight of GSLV on April 18, 2001.