Full size heat shield of a PSLV ( Chamber for keeping satellite):
- Heat shield is the uppermost stage of Polar Satellite Launch Vehicle (PSLV).
- It is made in to two halves, out of thin walled intricately machined Aluminium Alloy panels and sheets and weighs about 1200 Kgs.
- The main purpose of the heat shield is to house satellite, which is to be launched in to space orbit. It provides an aerodynamic shape to the launch vehicle.
- It protects the satellite while passing through the Earth’s dense atmosphere.
- The special separation mechanism which joins both halves of the heat shield is fitted with an explosive chord.
- When the PSLV reaches about 110 Kms this chord is made to explode causing the two halves to separate and fall off.
- The PSLV can carry satellite up to total weight of 1000 Kgs.
- The satellites are put in to an orbit of about 900 Kms. height.
Interior construction of PSLV heat shield:
Video of PSLV heat shield: