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Flight evaluation of Loran-C for general aviation area navigationThis paper reports on a flight evaluation of Loran-C which was part of a long range study of area navigation systems for general aviation. Tests involved two different Loran-C receivers, 6 different aircraft, and a variety of antennas. Uncorrected position fixes were typically accurate to one quarter mile. With measured corrections, repeatability was good to within 200 ft. Signal reliability was 99.7%. The receiver was not sensitive to atmospheric noise. The time difference grid demonstrated a long term stability of 0.3 microsecond. Vertical whip and ADF E-field antennas were found suitable for airborne use. Loran-C was found satisfactory for instrument approaches to runways at general aviation airports where published latitude-longitude coordinates were available. Accuracy was further improved by using locally measured Loran-C time difference coordinates.
Document ID
19820049514
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hollister, W. M.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Natarajan, K.
(Massachusetts Inst. of Tech. Cambridge, MA, United States)
Littlefield, J. A.
(MIT Cambridge, MA, United States)
Date Acquired
August 10, 2013
Publication Date
February 1, 1982
Publication Information
Publication: Navigation
Volume: 28
Subject Category
Aircraft Communications And Navigation
Accession Number
82A33049
Funding Number(s)
CONTRACT_GRANT: NGL-22-009-640
Distribution Limits
Public
Copyright
Other

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