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Thread: 17. When should a Direct Indicating Compass be “swung”?
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Old 27th Apr 2004, 11:29
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Cron
 
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17. When should a Direct Indicating Compass be “swung”?
When should a Direct Indicating Compass be “swung”?

I have information stating 'change of mag lat' and 'lightning strike' but would appreciate more information. Humorous reasons also welcomed. Thanks in advance.
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