Electric air position indicator
作者： William H T Holden
DOI:
关键词: Instant 、 Electrical engineering 、 Geographic coordinate system 、 Point (geometry) 、 Geodesy 、 Engineering 、 Position (vector)
摘要: This invention relates to an air position indicator for use on aircraft enabling the pilot or navigator determine at any instant latitude and longitude of his miles he has flown from specified take-off 'point. More particularly is concerned...
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