oducts ISDU CG1136AC20 Inertial Sensor Display 1 $8,873 MSU CG1227AC01 Mode Select Unit 1 $6,283 IRU HG1075AE03 Inertial Reference Unit 3 $30,905 Weather Radar & Radio Altimeter RT-300 7001840-922 Radio Altimeter Receiver Transmitter 2 $9,073 WC-874 7006921.415 P-870 Weather Radar Controller 2 $3,748 WU-870 7012640-902 P-8