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Welcome to Loran-History.info

 These pages remember the Coast Guardsmen, who served aboard Loran-A, Loran-C stations, and other Loran billets worldwide. These dedicated Coasties are but a few who provided radio navigation signals to millions of navigators. These pages wouldn't exist except through the efforts of MCPO Bill Dietz, USCG(ret). Bill has spent numerous hours for over a decade collecting the information you find here.

  If you wish to add your information to the database, just fill out the Contact us form. Bill or I will update the list.

  We are looking for pictures and stories.  If you wish to contribute, please Contact Us.



Station Christmas/Season Greeting Cards


SE Asia Loran-Chain

Loran Station GIS, a zipped google earth file with Loran Stations Locations by Michael Greene

Received this study (pdf) for distribution.

LORAN-C Legacy: The End of an Era
Social History and Operations of LORAN-C
United States Coast Guard

FYI - Site Maintenance underway. 

For the next few months we are conducting an audit of the html pages to ensure compliance with the current standards.  There is extraneous html code on some pages and it needs to be brought up to date.  I am doing each letter of the alphabet as a group before moving on to the next grouping.  If you sent something to Bill that belongs in the portion of the alphabet I'm currently working, it won't appear as timely as others.  Please bear with me during this process.   I hope to make the site more friendly for the mobile users (tablets and smart phones) as well as faster for the wired users.

-- Joe

Received notice via an All Coast Guard message that Bill and I had received the Foundation for Coast Guard History's recipients of the Multimedia Award for this site.  We are humbled by this recognition and thank the Foundation for the Multimedia Award.


Some highlights of the recent research trip is a better understanding of the MIT research team and the different types of LORAN and the test being conducted during late 1944 through 1946. I previous read that MIT researchers requested to use the transmitters at the East Coast on air stations (MF) for testing. The Coast Guard gave approval to installed a second set of equipment (timers/transmitters) at the East Coast Stations (Nantucket, Bodie, Folly Beach and possibility Hobe Sound) plus the test stations Montuak, Fenwick and Assateague. There were monitor stations located in Bermuda, Carlyle, IL, Assateague, Fenwick, Memphis, and Chatham. From my understanding from a fast read there were three LORAN frequencies LF (180kc); MF (1.75 - 2.0mc - this was standard loran) and HF (10.585). I will have a better understanding once I have read and disgested all the facts. All this will be posted to the site as time permits.

Other interesting items is the coordinators of the SE Asia chain. There were approxiately 14 monitor sites with UDORN being the control station. More to come...

Many photos and other interesting information that will be posted at time permits.

A possible LORAN convention is being planned for 2020. The CG Combat Vets are hosting a convention in Charleston, SC April 2019. More information is below.

As mentioned above the site is undergoing a major revamp. I am working on sorting the files and renaming to a standard format along with posting new material. We do welocme all your input, photos, names, rosters or anything else you would to share with others. Please continue sending.

Ray is going a great job of hosting this and we support him temendously however the loran-history site and the Facebook group are two independent identities. If you would like to post something on either site the material should be sent to that site.


Thanks to Ray Rebmann Fred's Place Reunion Hall will be posted on each station page. 

Completed: Adak, Angaur, Atafu, Attu, Barrigada, Batan, Biorka, Cape Atholl, Cape Christian, Cape Sarichef, Canton, Catanduanes, Eniwetok, Estaca de Vares,  Estartit, French Frigate Shoals, Gesashi, Guam, Hokkaido, Ichi Hanare, Iwo Jima, Johnston Island, Kargabarun, Kauai, Kure Island, Kwajalein, Lampang, Lampedusa, LMS Kami Seya, LMS Keflauik, LMS Kodiak, LMS Rhodes, LMS Sardinia, LMS Shetlands, LMS Udorn, Marcus, Matratin, Matsumae, Miho, Miyako Jima, Molokai, Narrow Cape, Naulo Point, Niigata, Niihau, Nomaike, Ocean Cape, Oshima, Port Clarence, Pusan, Roguron, Saipan, Sattahip, Sellia Marina, Shoal Cove, Sitkinak, Spruce Cape, St Paul, Sylt, Upolu Point, USCGC KUKUI, Wildwood

Ray Rebmann asked to pass this info:

small loranimal

Loranimal patches are available.  Visit this page to contact Ray.  The actual patch is depicted on the contact page as well as the history behind the patch.

Facebook pages for Loran Veterans


Coast Guard Foundation for History

Coast Guard Combat Veterans Association

The Coast Guard Combat Veterans will be having their 2019 Convention in North Charleston, SC on 15-18 April 2019. While all COMSEASEC veterans are always invited, they have offered us the opportunity to have a separate day/session for a COMSEASEC reunion. It's been some time since we have gotten together. If you have an interest in joining us at this event, please send an email to COMSEASEC@gmail.com.

Final Report on Loran Transmitter X-Ray Exposure (pdf file)

"The View From the Top" - By CDR Carl Burkhart USCG (Ret) - pdf 
(This article was published in CGA Alumni "The Bulletin",Vol 72, No 5


MIT Radiation Lab - Loran was Division 11

MIT Radiation Lab
MIT - Radiation Laboratory Series - Vol 4 - LORAN
Pierce, McKenzie, Woodward

What's new

09 DEC 18 - Updated personnel roster.
04 DEC 18 - Updated personnel roster.
26 NOV 18 - Updated Havre fact sheet and added numerous documents.
25 NOV 18 - Updated Personnel Roster
17 NOV 18 - Updated Personnel Roster; Fact Sheets: Angaur; Attu; Baudette; Boise City; Cape San Juan; Caribou; Ejde; Estartit; Fallon; Gillette; Grangeville; Havre; Ichi Banare; Iwo Jima; Johnston; Jupiter; Kodiak; Kwajalein; Las Cruces; Malone; Miyako; Nantucket; Port Clarence; Raymondville; Seachlight; Seneca; Shoal Cove; Tarumpitao; Tok; Wake Island; Yap - Added documents to Loran A GOA Chain.
16 NOV 18 - Point Grenville - updated Fact Sheet; added photos and documentation
09 NOV 18 - South Caicos - updated Fact Sheet; added 1965 and 1969 Organization/General Information Book, photos from BMCM Bobby Hill (c./1972) and Chuck Bliley (c./1968) plus other documents.
02 NOV 18 - San Salvador - updated Fact Sheet; added 1965 and 1968 GIBs; photos of WALDO 1 and construction of permanent.
24 OCT 18 - added photos to Operation Tight Reign; Ejde photos tower dismantling; San Salvador photos
14 OCT 18 - updated personnel roster
11 OCT 18 - ADAK - added 1949 - 1975 photos; Updated Fact Sheet for: Adak, Attu, Cape Sarichef, Port Clarence, SEAsia Section, Tan My
09 OCT 18 - Adak - added 09 JUL 1956 Loran Transmitting Station Survey; plus 1956 photos
08 OCT 18 - Adak - added 31 JUL 1968 Personnel Roster
03 OCT 18 - SEAsia - MAR 75 ITT Proposal for Operation and Maintenance of the Thailand stations Sattahip: 1969 GIB
2 OCT 18 - created SE Asia Chain page and banner above. Marshall Point: updated fact sheet; added HQs and D1 implementation correspondence and 20 SEP 1971 Dedication Cememony Panphlet
28 SEP 18 - SEAsia Loran C Calibration Report 09 MAY 1966 News Release; Updated USCGC KUKUI fact sheet
27 SEP 18 - Angissog 1967 General Information Book; Bikati; Biorka Fact Sheets; LORAN C Manuals/Brochures: 26 MAY 1972 LORAN C and D Systems of Navigation; ITT AN/ARN-85 Receiver panphlet; SEAsia stations Lat/Long updated; 05 MAY 1969 Vietnam Airboure Cal Test; 06 MAY 1966 News Release
26 SEP 18 - Conson: Updated fact sheet; 30 DEC 1968 and 1969 General Information Books added plus 1967 photos
22 SEP 18 - Kwajalein: Updated fact sheet; 1965 and 1975 General Information Books added plus much more.
16 SEP 18 - Matratin: added 1967 General Information Book
15 SEP 18 - Ocean Cape: added Ken Cochran photos, files and the 01 DEC 1967 General Information Book
10 SEP 18 - Added Tom Shubback Miho photos
09 SEP 18 - Updated Personnel Roster
07 SEP 18 - Added photos to Hobe Sound
03 SEP 18 - Added LMS Ratidian 1945 station photos
30 AUG 18 - Updated Kauai - 1944 construction photos, 1969 General Information Book
27 AUG 18 - Saipan 1971 General Information Book; Updated facts sheets: Eniwetok, Guam, LMS Ratidian Point, Saipan, San Salvador, Sattahip, Ulithi
26 AUG 18 - LORAN A AN/FPN-30 Tech Manual, Updated fact sheets: Lampedusa, Malone, Saipan
26 JUL 18 - LORAN A CU-277/URT and T-325B/FPN Tech manuals have been located, scanned and posted. The AN/FPN-30 tech manual soon to be posted. A very special thanks to Dwight Grimes for the loan of the manuals.
25 JUL 18 - Updated Personnel Roster
06 JUN 18 - Updated fact sheets for: Angaur, Batan, Cape Christian, Cape San Juan, COMFESEC, COMMARSEC, COMPHILSEC, Eniwetik, FFS, Grand Turk, Guam, Ichi Banare, Iwo Jima, Johnston, Kauki, Kwajalein, Matsumae, Miho, Miyako Jima, Molokai, Nomaike, O'Shima, Pusan, Saipan, Talampulan, Tarumpitao, Ulithi, Wake Island
04 JUN 18 - updated personnel roster
16 MAY 18 - Biloxi, LMS Udorn - added photos and updated Fact Sheet; Grangeville - added photos
15 MAY 18 - Updated personnel roster. 28 APR 18 - added videos to Wildwood and Johnton Island pages.
11 APR 18 - Updated Fact Sheets: Angaur; Cape Atholl; Cape Christain; Folly Island; Hokkaido; Iwo Jima; Kodiak; Marcus; Naulo Point; OShima; Ottisi; Philippine Section; Point Grenville; Port Clarence; Port Isabel; Port-aux-Basques; Saipan; San Salvador; Sitkinak; Skuvanes; South Caicos; Spring Island; Spruce Cape; St. Paul; Talampulan; Tan My; Tarumpitao; Added photos to Attu of CWO John Flewelling; Cape Hatteras 1949 Antenna; Gesashi 1976 aerial view; SEAsia Patch; updated personnel roster.
09 APR 18 - Battle Harbor - updated Fact sheet and added 1948 Operational Data Report; 26 FEB 1950 Station Fire Corrsepondence plus other material
06 APR 18 - Sellia Marina - updated Fact Sheet, added 1967 General Information Book; Board of Survey; COMDT OFCO; ACTEUR OPORD
01 APR 18 - Cape Atholl - added NOV 1961 General Information Book; Cape Atholl/Christian OFCO 50-75
25 MAR 18 - Atafu - uploaded Roger Kelm photos and Roger Kelm World War Two LORAN Service
08 MAR 18 - Kure - added SS1 Steve Phifer photos
07 MAR 18 - LMS Eglin - added USAF Support Agreement, LMS Warner-Robbins to Eglin; Kure: added photos from Dave Hill; Updated Fact Sheets: Narrow Cape; Niigata; Nomaike; Ocean Cape; Okama Saki;
04 MAR 18 - LMS Eglin - added documentation; Updated Fact Sheet: LMS Keflavik; LMS Kodiak; LMS Ratidian; LMS Shetland
01 MAR 18 - LMS Eglin - added Destin Monitor Site correspondence
26 FEB 18 - Updated LMS Majuro Fact Sheet and added photos
24 FEB 18 - Updated LMS Fuchu Fact Sheet; added 1969 General Info Book plus other documents;
21 FEB 18 - Estaca de Vares added 1967 General Info Book; Fact Sheets updates: LMS Eglin; LMS Fuchu
19 FEB 18 - Attu added 07 NOV 1969 LORAN C Free Running Mode; Updated Port Clarence and Sitkinak Fact sheets; LMS Bermuda: added 1966-67 Personnel Allowance; 1978-79 Disestablishment Correspondence; Air Station History; updated the Fact Sheet
18 FEB 18 - Attu: added 302242Z DEC 64 LORAN A Operating Mode this includes all D17 LORAN A Stations; LMS Bermuda: added JUL 1969 General Information Book and updated fact sheet
14 FEB 18 - Updated LMS Bermuda Fact Sheet and added 1967 Station Info Book; OPCO 30-79;
13 FEB 18 - Updated Fact Sheets: Grangeville; LMS Bermuda; Marcus: added Don Johnson photos; Attu: added Establishment of Air Force/Army facility correspondence
12 FEB 18 - Attu-added Change of Command Documentation; Fact Sheet updates: Malone; Marcus
11 FEB 18 - Updated Fact Sheets for Iwo Jima; Jan Mayen; Jupiter; Kargabarun; Kodiak; Lampedusa; LMS Shetland;
10 FEB 18 - Updated Kure Fact Sheet and added documents
09 FEB 18 - Added Attu-Ochi-Ishi Feasibility Link Correspondence; Kure - added Bill Ferrary 1970's photos; Fact sheets: Guam; Hasaki; Hokkaido; Ichi Banare;
07 FEB 18 - Updated Fact Sheets: Galveston; Gesashi; Grand Isle; Grangeville;
05 FEB 18 - Updated Fact Sheets: Cape Blanco; Cape San Blas; Cape Sarichef; Caribou; Carolina Beach; Catanduanes; Conson; Ejde; Eniwetok; Estaca de Vares; Estartit; Fallon; FESEC; Folly Island; FFS;
01 FEB 18 - Updated Attu Fact Sheet and added 1968 General Information Book plus other documents
28 JAN 18 - Updated Adak Fact Sheet and added 1968 & 1976 General Information Books plus other documents
25 JAN 18 - Updated LMS Sardina Fact Sheet and added 1967 Station Information Book plus other documents
24 JAN 18 - Updated Batan Fact Sheet and added 1969 Station Information Book
23 JAN 18 - Updated Upolu Point Fact Sheet and 1978 Station Information Book; Water Issues; Wake: Geography Map of Atoll; Yap added OPCO-27-63; Feb 1983 DI; Nov 1964 D14 News Release; Yap Report of Title;
22 JAN 18 - Updated Fact Sheet Attu; Barrigada; Batan; Battle Harbor; Biloxi; Biorka; Bo; Cape Atholl; Upolu Point; added to Upolu Point 1947 Life Aboard and 1969 Station Information Book
09 JAN 18 - Updated Yap and Barrigada - D14 OPORDER; Yap Report of Title; Fact Sheet: Karabarun, Upolu Point
29 DEC 17 - Updated Yap - added 1987 Closure Discussion plus other information; Fact Sheets for Williams Lake; Wake Island; Venice; Cape San Blas; Biloxi
28 DEC 17 - Updated personnel Roster
20 DEC 17 - Updated Yap - fact sheet and added General Information Book (year unk); Montauk Point factsheet and included a photo what is to be believe the station in Sep 1945.
19 DEC 17 - updated Sylt - fact sheet and added 1967 General Information Book
18 DEC 17 - updated LORAN-C 10 Oct - 19 Nov 1974 NORPAC OOT Investigation - LORAN B Purchase description of Station Sets; Contract Specs for Receiving Set; Final Evaluation of System; Yap - fact sheet, 1963 Site Survey; 1964 Welcome Aboard; 1973 General Information Book; 1976 General Information Book; 1981 Relocation to Guam
04 DEC 17 - updated Adak and Angaur
29 NOV 17 - upgraded LORAN B system and receiver specs contract; Pusan
28 NOV 17 - updated Batan, Christmas Cards, LORAN C NORPAC OOT 10 Oct - 19 Nov 1974 Investigation, Matsumae
12 NOV 17 - updated personnel roster
22 SEP 17 - updated personnel roster
17 SEP 17 - updated LMS Shetland, ST Paul
07 SEP 17 - updated personnel roster
04 SEP 17 - updated Lampang, LMS Kodiak, Ocean Cape, SE-Asia-Section, Spring Island, Spruce Cape