Dec (unit)

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The dec is an obsolete and unlawful unit of flat angle that was used to estimate another ship's course as a deviation from bank angle .

1 Dec = 90 ° / 9 = 10 °

literature

  • Peter Kurzweil: The Vieweg unit lexicon. Vieweg, Braunschweig / Wiesbaden 2000, ISBN 978-3528069872 .