Indian Satellite Launch Vehicle

Satellite Launch Vehicle

Satellite Launch Vehicle
Function	Small launch vehicle
Manufacturer	ISRO
Country of origin	India
Size
Height	22 metres (72 ft)
Diameter	1 metre (3.3 ft)
Mass	17,000 kilograms (37,000 lb)
Capacity
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.The first experimental flight of SLV-3, in August 1979, was a failure.

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

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.

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

Faulty valve caused vehicle to crash into the Bay of Bengal 317 seconds after launch

Placed into an unusable low orbit, decayed after 9 days

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.