Satellite Launch Vehicle

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This article is about the Indian launch vehicle. For the term "Satellite launch vehicle", see Launch vehicle.
Satellite Launch Vehicle
Satellite Launch Vehicle
Function Small launch vehicle
Manufacturer ISRO
Country of origin India
Height 22 metres (72 ft)
Diameter 1 metre (3.3 ft)
Mass 17,000 kilograms (37,000 lb)
Payload to 400km LEO 40 kilograms (88 lb)
Associated rockets
Derivatives ASLV, PSLV
Launch history
Status Retired
Launch sites Sriharikota
Total launches 4
Successes 2
Failures 1
Partial failures 1
First flight 10 August 1979
Last flight 17 April 1983
Notable payloads Rohini
First stage
Engines 1 solid
Thrust 502.6 kilonewtons (113,000 lbf)
Specific impulse 253 sec
Burn time 49 seconds
Fuel Solid
Second stage
Engines 1 solid
Thrust 267 kilonewtons (60,000 lbf)
Specific impulse 267 sec
Burn time 40 seconds
Fuel Solid
Third stage
Engines 1 solid
Thrust 90.7 kilonewtons (20,400 lbf)
Specific impulse 277 sec
Burn time 45 seconds
Fuel Solid
Fourth stage
Engines 1 solid
Thrust 26.83 kilonewtons (6,030 lbf)
Specific impulse 283 sec
Burn time 33 seconds
Fuel Solid

The Satellite Launch Vehicle (Hindi: उपग्रह प्रक्षेपण यान), or SLV was a project started in the early 1970s by the Indian Space Research Organisation to develop the technology needed to launch satellites. The project was headed by APJ Abdul Kalam. SLV was intended to reach a height of 400 km and carry a payload of 40 kg.[1][needs update]The first experimental flight of SLV-3, in August 1979, was a failure.[2]

It was a four-stage rocket with all solid-propellant motors.[2]

The first launch of the SLV took place in Sriharikota on 10 August 1979. The fourth and final launch of the SLV took place on 17 April 1983.

Launch History[edit]

All four SLV launches occurred from the SLV Launch Pad at the Sriharikota High Altitude Range.

Flight Launch date/time (UTC) Launch pad Payload Payload mass Result
E1 10 August 1979 SLV Launch Pad Rohini Technology Payload[3] 35 kg Failure

Faulty valve caused vehicle to crash into the Bay of Bengal 317 seconds after launch [4] [5]

E2 18 July 1980
SLV Launch Pad Rohini RS-1 35 kg Success

[5] [4]

D1 31 May 1981 SLV Launch Pad Rohini RS-D1 38 kg Failure

Placed into an unusable low orbit, decayed after 9 days[4] [clarification needed] [5]

D2 17 April 1983 SLV Launch Pad Rohini RS-D2 41.5 kg Success

[clarification needed] [5]

A fifth flight of the SLV coming more than 33 years after its last flight will occur on May 23, 2016. A modified version of the launcher consisting of its first stage will loft the HEX-1 Reusable Launch Vehicle technology demonstrator on a 10-minute mission to 70 kilometers in altitude.

See also[edit]


  1. ^ "Launch Vehicles". Department of Space, Government of India. Retrieved 19 January 2014. 
  2. ^ a b "SLV". Retrieved 2015-09-05. 
  3. ^ "Rohini Technology Payload". Retrieved 28 December 2014. 
  4. ^ a b c Subramanium, T. S. "New Horizons". Frontline. Retrieved 19 January 2014. 
  5. ^ a b c d "SHAR Milestones". Satish Dhawan Space Center, ISRO. Retrieved 19 January 2014.