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iPhone / iPad
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A Hold Entry Calculator for use by instrument pilots and students alike. Enter your inbound heading to the fix, plus the radial specified to hold on, and direction of the hold. View the sector the aircraft lies in indicating the correct entry into the hold. Use it in flight to foolproof holding entries. Use the training mode to practice visualizing hold entries. Impress your flight instructor by never botching a hold again! A great learning tool for new instrument students.