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Today, GSLV To Carry A Satellite And India's Hopes For Moon Mission

our space scientists are doing some fabulous work.

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India has so far developed 2 cryogenic engines. CE 7.5 and CE20. CE 7.5 is meant for Gslv mk2( in this launch) while CE20 will be used in gslv mk3.
Why did we go full cryo before semi ?
 
missed the live flight !!

Congrats India ... ISRO you never fail to make us proud.

I still remember when the GSLV flight failed twice....the cheerleaders were on full form... its amazing to see them silenced !

Now that we are able to do it, may be rocket science is not that hard... I mean us mastering a complex technology can't be true :devil:
 
GEOSYNCHRONOUS SATELLITE LAUNCH VEHICLE
(GSLV)


About the Launch Vehicle

The Geosynchronous Satellite Launch Vehicle was primarily developed to launch INSAT class of satellites into Geosynchronous Transfer Orbits. GSLV is being used for launching GSAT series of satellites. GSLV is a three stage launcher that uses one solid rocket motor stage, one Earth storable liquid stage and one cryogenic stage. The most recent flight of GSLV, the GSLV-D5, placed GSAT-14 into its planned orbit and marked the first successful flight of the indigenous cryogenic stage. Earlier, GSLV had launched various communication satellites among which EDUSAT is notable, being India's first satellite built exclusively to serve the educational sector through satellite based distance education.
gslv.png

Vehicle Specifications
Height : 49.13 m
Number of Stages : 3
Lift Off Mass : 414.75 tonnes
First Flight : April 18, 2001

TECHNICAL SPECIFICATIONS
Payload to GTO: 2,500 kg
GSLV's primary payloads are INSAT class of communication satellites that operate from Geostationary orbits and hence are placed in Geosynchronous Transfer Orbits by GSLV.

Payload to LEO: 5,000 kg
Further, GSLV's capability of placing up to 5 tonnes in Low Earth Orbits broadens the scope of payloads from heavy satellites to multiple smaller satellites.

Third Stage: CUS
Developed under the Cryogenic Upper Stage Project (CUSP), the CE-7.5 is India's first cryogenic engine, developed by the Liquid Propulsion Systems Centre. CE-7.5 has a staged combustion operating cycle.

Fuel : LOX + LH2
Max. Thrust : 75 kN
Burn-time : 720 sec
Second Stage: GS2
One Vikas engine is used in the second stage of GSLV. The stage was derived from the PS2 of PSLV where the Vikas engine has proved its reliability.

Engine : Vikas
Fuel : UDMH + N2O4
Max. Thrust : 800 kN
Burntime : 150 sec
First Stage: GS1
The first stage of GSLV was also derived from the PSLV's PS1. The 138 tonne solid rocket motor is augmented by 4 liquid strap-ons.

Engine : S139
Fuel : HTPB
Max. Thrust : 4700 kN
Burntime : 100 sec
Strap-on Motors
The four liquid engine strap-ons used in GSLV are heavier derivatives of PSLV's PS2, and use one Vikas engine each.

Fuel : UDMH + N2O4
Max. Thrust : 680 kN
Burntime : 160 sec

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& the next big thing

GSLV Mark 3
LVM3

About the Launch Vehicle
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 class 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.
mk3.png


Vehicle Specifications
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
Payload to GTO: 4,000 kg
LVM3 will be capable of placing the 4 tonne class satellites of the GSAT series into Geosynchronous Transfer Orbits.

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Payload to LEO: 8,000 kg
The powerful cryogenic stage of LVM3 enables it to place heavy payloads into Low Earth Orbits of 600 km altitude.

cryo.png

Cryogenic Upper Stage : C25
The C25 is powered by CE-20, India's largest cryogenic engine, designed and developed by the Liquid Propulsion Systems Centre 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
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Solid Rocket Boosters : S200
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
l110.png

Core Stage : L110 Liquid 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
 

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