1. Instead of the more common optical systems, Steel Monkeys chose an inertial system . 2. This was in contrast to the stellar-inertial systems under development by the Navy and others. 3. The Cold War missile race spurred the development of smaller, lighter and more accurate inertial systems . 4. Weight was reduced by combining the radar power supply and processor and incorporating a Systron Donner inertial system . 5. The inertial system provides short term data, while the satellite system corrects accumulated errors of the inertial system. 6. The inertial system provides short term data, while the satellite system corrects accumulated errors of the inertial system . 7. In 2002, he took over as Director of ISRO Inertial Systems Unit ( IISU ) at Vattiyoorkavu, Thiruvananthapuram. 8. In 2002, he took over as Director, ISRO Inertial Systems Unit ( IISU ), Vattiyoorkavu, Thiruvananthapuram. 9. The ATA was less accurate than a full-fledged inertial system , but good enough for Harpoon's range. 10. The major enhancement in the Atlas E was the new all-inertial system that obviated the need for ground control facilities.