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Question 1

Maximum Latitudes for Ground Alignment of IRs ?

Answer 1

Between 73°N & 73°S

Question 2

ADIRUs with same Magnetic Variation Table…in NAV MODE, valid IR MAG HDG & TRK ANGLE provides only within ?

Answer 2

73°N & 60°S ( Latitudes Beyond are PROHIBITED) !!

Question 3

1 ADIRU has a different Magnetic Variation Table…in NAV MODE, valid IR MAG HDG & TRK ANGLE provided only within ?

Answer 3

• 60°N, between 30°W & 160°W
• 73°N & 55°S

(Latitudes Beyond are PROHIBITED) !!