Speed of advance

Speed of advance (SOA) is used to indicate the speed to be made along the intended track.[1] The intended (anticipated, desired) speed along the track with respect to the earth, taking into consideration the effect of known or predicted current; speed along the track. SOA is also used to designate the average speed that must be made good to arrive at a destination at a specified time.[2]

References
  • Bowditch, Nathaniel (2013). The American Practical Navigation. National Geospatial Intelligence Agency. p. 5. ISBN 978-1-62087-796-8.
  • Maloney, Elbert S. (1985). Dutton's Navigation and Piloting. Naval Institute Press. p. 178. ISBN 0-87021-157-9.
  1. Bowditch, The American Practical Navigation, National Geospatial-Intelligence Agency, 2013, p.5
  2. Maloney, Elbert S., Dutton's Navigation and Piloting, Naval Institute Press, 1985, p.178
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