[FaHaD_7arB]

IRS

INERTIAL REFERENCE SYSTEM

PROVIDES ATTITUDE,HEADING(MAGNETIC AND TRUE),VERTICAL SPEED,LINER ACCELERATION,BODY ANGULAR RATE.

THE IRS USES LASER GYROS, IN PLACE OF THE ELECTRO-MECHANICAL GYRO USED IN THE INS
(INERTIAL NAV. SYSTEM)...