41748549078781_page_191

41748549078781 | page 191 | https://thedailydialectics.com/pdfs/FIOA/41748549078781/41748549078781.pdf

REF ID:A56914 CONFIDENTIAL- ty intornat -172- movements, had to be recognized without delay and reported immediately. As the initial step in setting up operations, the D/F evaluation section had to provide the teams with data taken from the chart of mag=- netic declination. These corrective factors…