The systems used by the defence forces, be it in water, on land or in air must be extremely robust and reliable to withstand the services needs. The reliability testing of each of the sub-assembly and the integration of these systems require test rigs with repeatable results to ensure the desired performance while in use. On the other hand there are many currently installed test rigs that are hard to maintain due to non-availability of parts consequent to the rapid change in technology. SST has sound competence and experience in electronics, hydraulics and pneumatics to develop, replace and modernise such test rigs.