Third Successful Vikas EngineTest For Gaganyaan mission| By ISRO

Gaganyaan Vikas Engine is successfully tested by ISRO. So in this blog, we will know a lot more about it.  It was successfully tested by the isro and the L110 liquid stage gaganyaan engine successfully worked and a lot more about it in this blog.

On July 14, 2021, ISRO has successfully conducted the third long-duration hot test of the liquid propellant Vikas Engine for the core L110 liquid stage of the human-rated GSLV MkIII vehicle, as part of the engine qualification requirements for the Gaganyaan Programme.

The engine was fired for a duration of 240 seconds at the engine test facility of ISRO Propulsion Complex (IPRC), Mahendragiri in Tamil Nadu. The performance of the engine met the test objectives and the engine parameters were closely matching with the predictions during the entire duration of the test.

This was told by ISRO on their Website.

What is L110 liquid stage?

It is a type of rocket engine which is human-rated and capable of sending humans to low Earth orbit. It is also known as Vikas Engine. And it is developed by ISRO Indian space research organization. It is made for the gaganyaan mission which is going to launch in late 2022 

What is the Vikas engine?

Vikas (a portmanteau from the initials of Vikram Ambalal Sarabhai) is a family of liquid rocket engines designed and designed by the Liquid Propulsion Systems Center in the 1970s. The design was based on a licensed version of the Viking engine with a chemical compression system. The first Vikas production engines used some imported French parts that were later replaced by homemade ratings. It is used in the Polar Satellite Launch Vehicle (PSLV) and the Geosynchronous Satellite Launch Vehicle (GSLV) series of useful space delivery vehicles. The engine uses about 40 tons of UDMH metric as fuel and Nitrogen tetroxide (N2O4) as a powerful oxidizer of 725 kN. The upgraded type of engine has a room pressure of 58.5 bar compared to the 52.5 bar in the older version and produces 800 kN power. The engine is able to remove the substitute.

The rocket benefited from technical cooperation on the Viking 4A engine developed by CNES / SEP in France. The big difference is that the Vikas are limited to long-term burns.

Introduced from 2018 constructed 6% of the robust version of the Vikas engine. Demonstrated on 29 March 2018 in the second phase of the implementation of GSAT 6A. It will be used by four Vikas engines for first-class enhancements on the upcoming trip.

All things about GSLV

The Geosynchronous Satellite Launch Vehicle (GSLV) is an operational space rocket system used by the Indian Space Research Organization (ISRO). GSLV has been used in thirteen launches from 2001 to 2018, with additional planned edits. Although GSLV Mark III shares this name, it is a completely different launch car. The Geosynchronous Satellite Launch Vehicle (GSLV) project was launched in 1990 with the aim of gaining the power to launch Indians with geosynchronous satellites. 

The GSLV makes use of the already proven features in the launch vehicles of the Polar Satellite Launch Vehicle (PSLV) built with S125 / S139 rocket booster and Vikas engine that pumps liquid. 

Due to the necessary desire to install a satellite in the orbit geostationary orbit (GTO), a third phase would be given to the LOX / LH2 Cryogenic engine at a time when India did not have or had the technical expertise to build one.

The first GSLV development aircraft (suspension of Mk I) launched on 18 April 2001 was a failure as the payload failed to reach the orbit parameters. The launcher was announced to be operational after the second development aircraft successfully launched the GSAT-2 satellite.

 During the first years from the first launch to 2014, the launcher had a checkered history with only 2 of the 7 successful launches. Russia backed the agreement after the United States opposed the agreement as a breach of the Missile Technology Control Regime (MTCR) in May 1992. As a result, ISRO launched the Cryogenic Upper Stage Project in April 1994 and began making its own. cryogenic engine. 

The third phase was to be acquired in the Russian company Glavkosmos, including the transfer of technology and details of engine construction based on an agreement signed in 1991.

Now let us know some technical details about the Geosynchronous Satellite Launch Vehicle (GSLV) 

Vehicle Specifications

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

GSLV-SPECIFICATIONS

Payload to GTO: 2,500 kg

The primary load of GSLV is the INSAT class of communications satellites that operate from the Geostationary cycle and are therefore placed on Geosynchronous Transfer Orbits by GSLV.

Payload to LEO: 5,000 kg

In addition, GSLV's ability to place up to 5 tons in the Earth's Orbits increases the range of payloads from heavy satellites to many smaller satellites.

Third Stage: CUS

Developed under the Cryogenic Upper Stage Project (CUSP), CE-7.5 is India's first cryogenic engine, developed by Liquid Propulsion Systems Center. CE-7.5 has a fixed fire operation cycle.

Fuel	: LOX + LH2
Max. Thrust	: 75 kN
Burn-time	: 720 sec

Second Stage: GS2

One Vikas engine is used in the second phase of the GSLV. The stage was taken from PS2 of PSLV where the Vikas engine proved its reliability.

Engine	: Vikas
Fuel	: UDMH + N2O4
Max. Thrust	: 800 kN
Burntime	: 150 sec

First Stage: GS1

The first step of GSLV is also taken from PS1 PSLV. A solid 138-ton rocket motor was added with four strap-ons. 

Engine	: S139
Fuel	: HTPB
Max. Thrust	: 4700 kN
Burntime	: 100 sec

Strap-on Motors

The four strap-ons of the liquid engine used in the GSLV are heavy PSLV's PS2 products and use one Vikas engine per.

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

GSLV Launches Till Date

SN	Title	Launch Date	Launcher Type	Orbit	Payload	Remarks
13	GSLV-F11 / GSAT-7A Mission	Dec 19, 2018	GSLV		GSAT-7A
12	GSLV-F08/GSAT-6A Mission	Mar 29, 2018	GSLV	GSO	GSAT-6A
11	GSLV-F09 / GSAT-9	May 05, 2017	GSLV	GSO	GSAT-9
10	GSLV-F05 / INSAT-3DR	Sep 08, 2016	GSLV-MK-II	GTO	INSAT-3DR
9	GSLV-D6	Aug 27, 2015	GSLV-MK-II	GTO	GSAT-6
8	GSLV-D5/GSAT-14	Jan 05, 2014	GSLV-MK-II	GTO	GSAT-14
7	GSLV-F06 / GSAT-5P	Dec 25, 2010	GSLV-MK-II	GTO	GSAT-5P	Mission Unsuccessful
6	GSLV-D3 / GSAT-4	Apr 15, 2010	GSLV-MK-II		GSAT-4	Mission Unsuccessful
5	GSLV-F04 / INSAT-4CR	Sep 02, 2007	GSLV-MK-II	GTO	INSAT-4CR
4	GSLV-F02 / INSAT-4C	Jul 10, 2006	GSLV-MK-II	GTO	INSAT-4C	Mission Unsuccessful
3	GSLV-F01 / EDUSAT(GSAT-3)	Sep 20, 2004	GSLV-MK-II	GTO	EDUSAT
2	GSLV-D2 / GSAT-2	May 08, 2003	GSLV-MK-II	GTO	GSAT-2
1	GSLV-D1 / GSAT-1	Apr 18, 2001	GSLV-MK-II	GTO	GSAT-1

Source ISRO

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