loran-history.info

    Home
   
Contact us

Personnel Roster
    Complete Roster
   
Search by Unit
   
Search by Last Name
    Rememberences

Guest Book
    View the Guest Book
   
Sign the Guest Book

Links of Interest
    What is a Loranimal?
   
Reminiscing
   
Amelia Earhart Project
   
Loran Health Issues

Miscellaneous
    Discussion Forum
   
Business Cards & Links'
   
Unit Awards
   
Loran-A
   
Loran-B
   
Loran-C
    CYTAC
   
Operation Tight Reign
   
ATLS Program
   
CG Documents
   
Loran Implementation, Planning, Installation, and Termination
    Omega System

Loran Stations
    Adak
   
Aguni
   
Amchitka
   
Angaur Island
   
Angissoq
   
Aquadilla
   
Atafu
   
Attu
   
Baccaro
   
Baker
   
Barrigada
   
Batan
   
Battle Harbor
   
Baudette
   
Bikati
   
Biloxi
   
Biorka
   
Bo
   
Bodie Island
   
Boise City
   
Bona Vista
   
Cameron
   
Comfort Cove 
   
Canton Island
   
Caribou
   
Cape Atholl
   
Cape Blanco
   
Cape Christian
   
Cape Hatteras
   
Cape Race
   
Cape San Blas
   
Cape San Juan
   
Cape Sarichef
   
Carolina Beach
   
Catanduanes
   
Conson
   
Dana
   
Deming
   
East Blockhouse
   
Ejde
   
Eniwetok
   
Estaca de Vares
   
Estartit
   
Fallon
   
Fenwick Island
   
Flores
   
Folly Island
   
Fox Harbour
   
Fredriksdal
   
French Frigate Shoals
   
Galveston
   
Gardner Island
   
Garths Ness
   
George
   
Gesashi
   
Gillette
   
Grand Isle
   
Grand Turk Island
   
Grangeville
   
Gray Point
   
Guam Island
   
Hachijo Jima
   
Hasaki
   
Havre
   
Hobe Sound
   
Hokkaido
   
Ichi Hanare
   
Iwo Jima
   
Jan Mayen
   
Johnston Island
   
Jupiter
   
Kargabarun
   
Kauai
   
Kodiak
   
Kure Island
   
Kutdlek
   
Kwajalein
   
Lampang
   
Lampedusa
   
Las Cruces
   
Malone
   
Mangersta
   
Marcus Island
   
Marshall Point
   
Martha's Vineyard
   
Matagorda
   
Matratin
   
Matsumae
   
Mediterranean Secton
   
Middletown
   
Miho Bay
   
Miyako Jima
   
Molokai
   
Montauk Point
   
Morotai
   
Nantucket
   
Narrow Cape
   
Naulo Point
   
Newton Point
   
Niigata
    Niihau
   
Nipisat
   
Nomaike
   
Ocean Cape
   
Okama Saki
   
Orsuiagssuaq
   
Oshima
   
Ottisi
   
Palau

   
Point Arena
   
Point Arguello
   
Point Grenville
   
Point Sur
   
Porspodor
   
Port-Aux-Basques
   
Port Clarence
   
Port Hardy
   
Port Isabel
   
Porto Santo
   
Pulo Anna
   
Pusan
   
Raymondville
   
Roguron
   
Sagres Point
   
Saipan Island
   
San Mateo Point
   
San Salvador
   
Sandur
   
Sandy Hook
   
Santa Maria
   
Sattahip
   
Searchlight
   
Sellia Marina
   
Seneca
   
Shaw
   
Shoal Cove
   
Sitkinak
   
Skuvanes
   
Spring Island
   
Spruce Cape
   
South Caicos
   
St Matthew
   
St Paul
   
Sylt
   
Talampulan
   
Tan My
   
Tarumpitao
   
Tarva
   
Tok
   
Tsushima
   
Ulithi
   
Umnak
   
Upolu Point
   
Venice
   
Vik
   
Wake Island
   
Weybourne
   
Williams Lake
   
Yap
   
Yonakuni

Monitor Stations
    Bermuda
   Cape Chiniak
   
Chatham
   
Eglin
   
Fuchu
   
Hilo
   
Kami-seya
   
Keflauik
   
Kinnakeet
   
Kodiak
   
Majuro
   
Midway
   
Oak Island
   
Ratidian Point
    Rhodes
   
Sardinia
   
Shetlands
   
St Brides
   
St George
   
Twillingate
   
Udorn
Other Monitors

Areas, and Sections
    COMLANTAREA(Atl)
   
COMPACAREA(Ptl)
   
Activities Europe
   
Far East Section
    Philippine Section
    Marianas Section
    Med Sea Section
   
SE Asia Section
    Liaison Office Northern Europe
    NAVCEN

Other Entities
    Construction Comand Unit 203
   
Construction Det "A"
   
Guam Advance Base
   
Subic Bay
   
Wildwood
   
USCGC Kukui
   

External Links
    Coast Guard Historian Loran Units 

    Jerry Proc's Hyperbolic Radio Navigation Systems Page

    Dennis McCord's Estaca de Vares website 

   CG RETIREE COUNCIL NW

 

LORAN STATION YAP ISLAND
LORAN A: 09 32 56.32 N 138 09 38.74 E (1960 Mercury Datum)
LORAN C: 09 32 45.660 N 138 09 55.230 E
Pictures:

Fact Sheet:

Site Survey:

 

Construction Date

 

Constructed by:

 

Established:

12 SEPT 1964 - commissioned
22 OCT 1964 - Station dedicated

Disestablished:

1987

Operated by:

USCG

Chain:

LORAN C:
NORTHWEST PACIFIC

Station Letter designation:

LORAN A:  2L1, 2L2: Y
LORAN C:  Z

Station code name:

LORAN C: PACE III (1962-SEASIA Chain)/Cancelled 1963

Station Unit Number:

Z40180

Station AKA:

YAP

Radio Call Sign: NRV-7
Ham - KC6BY

On-air testing date:

LORAN C:  JAN 1965

Operational date:

LORAN A: 01 FEB 1965
LORAN C: 1965

Operations Ceased:

LORAN A: 312400Z DEC 1977
LORAN C: 1987

Station Operation:

LORAN A:
Double MASTER
LORAN C:
Single SLAVE/SECONARY Z

Station pair:

LORAN A:
2L1, ANGUAR
2L2, GUAM

LORAN C:
SS-3, GESASHI, HOKKAIDO, IWO JIMA, MARCUS
9970, GESASHI, HOKKAIDO, IWO JIMA, MARCUS
7930, GESASHI, HOKKAIDO, MARCUS
9970, GESASHI, HOKKAIDO, IWO JIMA, MARCUS

Loran Rate:

LORAN A: 2L1, 2L2 
LORAN C: SS-3, 9970, 7930

On-Air:

LORAN A:
2L1, 01 FEB 1965
2L2, 01 FEB 1965

LORAN C:
SS-3, JAN 1965
9970, 25 FEB 1975
7930, 210300Z FEB 81 Chain reconfigure due to IWO twr maint
9970, 310700Z MAR 81 IWO BACK ON-AIR

Off-Air

LORAN A:
2L1, 312400Z DEC 1977
2L2, 312400Z DEC 1977

LORAN C:
SS-3, 25 FEB 1975
9970, 202300Z FEB 1981
7930, 310300Z MAR 1981
9970, 1987 YAP Ceased Loran Ops

Monitor Rate:

 

Equipment:

LORAN A:
AN/FPN-30, T325B, AM-1700 AN/FPN-3A

LORAN C:
Construction started Dec 1963 and completed Feb 1965
Twr fell 5 MAY 1964 @ a height of 780 ft
Chain reconfigured in 1964 due to Iwo and Yap tower failures\
Early Jan 1965 the 1000ft twr completed
1965: AN/FPN-45/46, 2500Kw

Antenna Type:

LORAN A:

LORAN C:
1000ft Dresser-Ideco, Model 20097 1964 05 MAY 1964
1000ft Dresser-Ideco, Model 20097 JAN 1965

Personnel Allowance:

 

Miscellaneous:

Located on Gagil-Tomil Island
4 APR 1964 Tower structurally unstable
5 MAY 1964 Tower collapse
1967: Named Change to YAP ISLAND from YAP
1971 - CO relieved for cause

Commanding Officers / Officers in Charge

LT John Ehrmann Construction OINC 1964

LORAN A/C:

CO: LT John Erhmann 1964
CO: LTJG Powers 1964 -1965
CO: LTJG Morgan 1965 -1966
CO: LTJG Jeff Bull ? - NOV 1966
CO: LTJG Walter Donaghy NOV 1966 - 1967
CO: LTJG Rutherford 1967 - 1968
CO: LTJG Marcum 1968 - 1969
CO: LTJG Callis 1969 - 1970
CO: LTJG Shattie 1970 - OCT 1971
CO: LTJG Guy Taylor NOV 1971 - NOV 1972
CO: LTJG Douglas Kroll NOV 1972 - NOV 1973
CO: LTJG Charles W. Belsky NOV 1973 - 1974
CO: LCDR Paul Hooper 1975 - 1976
CO: LT Dave Blomberg 1976 - 1977
CO: LTJG D. A. Stuart 1977 - 1978

LORAN C:
CO: LTJG Robert Zimmer 1978 - 1979
CO: LT John R Williams 1979 - 1980
CO: LTJG Fitzpatrick 1980 - 1981
CO: LT Robert Garrett 1981 - MAY 1982
CO: LTJG Jay Ellis MAY1982 - JUN 1983
CO: LTJG Will Agen JUN 1983 - 1984
CO: LTJG Rodriquez 1985 - 1986
Last CO: LT Michael Hazel 1986 - 1987

PicturesClick on picture for larger image

Loran Station Yap

Picture from google earth.

Photos below were contributed by Carl MacDonald


The main building, off in the distance the water storage tanks and the loran "C" tower and transmitter building


Electronics and engineering building, basketball court, etc


Looking back at the buildings from near the loran "C" tower

Station Patch c./1972

Two photos were taken from the 125 foot tall Loran "A" tower. 

Thanks Mac!


Station c./1976

The below photos were contributed by Walter Schroter c./1986-87


MKC Schroter and SSC Hilliard Japanese Construction Equipment


MKC Schroter Japanese Zero


A long way from home


CAT D398 ready for Log Flight


Engineering Group


Decommissioning Crew

Thanks Chief!

 

 

Photo contributed by Angus MacFeeley


c./1976

Thanks Gus! 

The below photos were contributed by Jay Ellis (CO 1982-83)
Note: Both are of small size.


L to R: SK2 Les Taylor, UNK, HS1 Glen Jones


L to R: UNK, HS1 Glen Jones, LT Jay Ellis (CO), CWO Jerry Walker (STO)

Thanks Jay!

The below photos have been contributed by Doug Kroll (CO Nov 1972 - Nov 73)


c./ 1973


Change of Command Nov 1973


Change of Command Nov 1973

 
LTJG Kroll with traditional High Chief of Yap Islands


Quarterdeck


Tradition Yapeze Dance


Loran C Station


WWII Japanese Fighter


Yap Stone Money

Thanks Doug!

Copyright 2013-2017, loran-history.info