NASA NTRS · 19780023124
Computing LORAN time differences with an HP-25 hand calculator
Abstract
A program for an HP-25 or HP-25C hand calculator that will calculate accurate LORAN-C time differences is described and presented. The program is most useful when checking the accuracy of a LORAN-C receiver at a known latitude and longitude without the aid of an expensive computer. It can thus be used to compute time differences for known landmarks or waypoints to predict in advance the approximate readings during a navigation mission.
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Jones, E. D.. 1978-08-01. Computing LORAN time differences with an HP-25 hand calculator. https://ntrs.nasa.gov/citations/19780023124
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