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Rs 470 cr for GSLV III

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New Delhi — India’s first indigenously designed and developed high-thrust cryogenic engine meant for next generation GSLV Mark III launch vehicle is under advanced stage of development.

The endurance hot test of high thrust indigenous cryogenic engine of GSLV III has been successfully conducted for a duration of 800 s on 16 July 2015. Further tests are planned under High Altitude conditions and stage configuration, prior to the realization of flight stage.

GSLV mk-III sub-orbital experiment test flight from Satish Dhawan Space Centre at Sriharikota on 18 December 2014
GSLV mk-III sub-orbital experiment test flight from Satish Dhawan Space at Sriharikota on 18 December 2014

The developmental flights of GSLV Mk-III are targeted for completion by 2017 and the production of the cryogenic engine would commence thereafter.

The indigenous cryogenic engine will be used for powering the cryogenic stage (C25), the upper stage of GSLV Mk-III launch vehicle of ISRO, which can put satellites of up to 4 tonnes in Geosynchronous Transfer Orbit (GTO).

An amount of Rs 470 Crores has been allocated for the development of GSLV Mk III launch vehicle in the Twelfth Five Year Plan.

This information was given by Union Minister of State (Independent Charge) Development of North-Eastern Region (DoNER), MoS PMO, Personnel, Public Grievances & Pensions, Atomic Energy and Space, Jitendra Singh in reply to an unstarred question in Lok Sabha today.

Vehicle specifications

LVM 3 is a heavy launch capability launcher being developed by ISRO. It will allow India to achieve complete self reliance in launching satellites as it will be capable of placing 4 tonne Geosynchronous satellites into orbit. The LVM3 will have an India built cryogenic stage with higher capacity than GSLV. The first experimental flight of LVM3, the LVM3-X/CARE mission lifted off from Sriharikota on December 18, 2014 and successfully tested the atmospheric phase of flight. Crew module Atmospheric Reentry Experiment was also carried out in this flight. The module reentered, deployed its parachutes as planned and splashed down in the Bay of Bengal.

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

Technical specifications

With a payload to GTO of 4,000 kg, LVM3 will be capable of placing the 4 tonne satellites of the GSAT series into geosynchronous transfer orbits.

With a payload to LEO of 8,000 kg, the powerful cryogenic stage of LVM3 enables it to place heavy payloads into low earth orbits of 600 km altitude.

Cryogenic upper stage C25 is powered by CE-20, India’s largest cryogenic engine, designed and developed by the Liquid Propulsion Systems of ISRO located at Thiruvananthapuram.

Cryo Stage Height : 13.5 m
Cryo Stage Diameter : 4.0 m
Engine : CE-20
Fuel : 27 tonnes of LOX + LH2
Thrust : 186 kN

LVM3 uses two S200 solid rocket boosters to provide the huge amount of thrust required for lift off. The S200 was developed at Vikram Sarabhai Space Centre.

Booster Height : 25 m
Booster Diameter : 3.2 m
Fuel : 207 tonnes of HTPB (nominal)
Thrust : 9316 kN
Vacuum Isp : 274.5 sec
Burntime : 130 sec

At the core stage, the L110 liquid stage is powered by two Vikas engines designed and developed at the Liquid Propulsion Systems Centre.

Stage Height : 17 m
Stage Diameter : 4 m
Engine : 2 x Vikas
Fuel : 110 tonnes of UDMH + N2O4
Thrust : 1598 kN
Vacuum Isp : 293 sec
Burntime : 200 sec

The specifications above have been sourced from this page of the ISRO site.

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