Attēls:New York Harbor Nautical Chart.jpg

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Nautical chart including LORAN TD lines for ocean approaches to New York Harbor.

The chart shows TD lines, apparently for LORAN-A, which would make it the Nantucket-Chatam-Montuck-Sandy Hook-Fenwick-Bodie Is-Cape Hatteras chain. Note that the printed TD lines do not extend into inland waterway areas, as LORAN propagates poorly over land.

The green 1000 lines curve heavily in this area. Note the "LORAN TR" mark at the tip of Sandy Hook near the focus of the curves. This would be Station "J" (3H5). The ochre 4000 lines (3H4) would correspond to the TD between the master and Station "H" at Cape Hatteras. The master station of this chain was at Sankaty Head on Nantucket, Massachussets. [1]

The sharp angle between these sets of TD rings, especially to the east and north, would make it a poor pair for precise navigation.

This is a detail of the original at:

Datums 2004. gada 18. decembris (original upload date)
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Perry-Castañeda Map Collection, University of Texas at Austin - Original URL (detail) - Copyright statement

Originally uploaded on en.wikipedia; the description page was written by User:KeithTyler, and imported from here.
Autors NezināmsUnknown author
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(Šī faila izmantošana citur)		 PD-LAYOUT; PD-USGOV.

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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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tagadējais2007. gada 14. jūlijs, plkst. 13.122007. gada 14. jūlijs, plkst. 13.12 versijas sīktēls906 × 595 (172 KB)Massimiliano Lincetto{{Information |Description=Nautical chart including en:LORAN TD lines for ocean approaches to New York Harbor. The chart shows TD lines, apparently for LORAN-A, which would make it the NANTUCKET-CHATHAM-MONTUCK-SANDY HOOK-FENWICK-BODIE IS-CAPE HATTE

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