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LORAN STATION YAP ISLAND

Station Information

Site Survey: JAN - FEB 1963 Site Survey Report
Construction Date: DEC 1963 - FEB 1965
 
Constructed by: Dillingham Corp.
Beasley Construction Company (2nd Tower) 
Established:
Commissioned:
12 SEP 1964
02 OCT 1964 - Dedication

Decommissioned:
Disestablished:


171400 (Local) JUL 1987
30 SEP 1987 
Operated by:

USCG
Station Project code name: 1962: SEASIA Chain PACE III 1963 Cancelled
1963: Materials and equipment were on hand - it was decided to construct the station as part of the WING Project Northwest Pacific
Station Unit Identifier:

14-40180
Mail address: 1963: CO, LTS, USCG Drop Box___, Navy 926, c/o FPO, S.F. CA
1966: USCG Code 7, Box 76, FPO, San Francisco 96337
 
AKA: YAP
HAM Call sign:

KC6BY/KC6CG

Personnel Allowance: 1964 2 Officers, 30 Enlisted, 4 civilians
1966 2 Officers, 30 Enlisted, 4 civilians
1967 2 Officers, 29 Enlisted, 4 civilians
1972 2 Officers, 34 Enlisted, 2 civilians
1973 2 Officers, 35 Enlisted, 2 civilians
1979 2 Officers, 17 Enlisted, 2 civilians
1981 2 Officers, 22 Enlisted, 2 civilians

Station Mascot: 1967: Yap, Blue, Blackdog, Boots

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: 1963 - 1965 LT John Ehrmann Construction OINC (DEC - FEB)

1964 - 1965 LTJG Stanley F. Powers (12 SEP - JUL)
1965 - 1966 LTJG Stewart B. Morgan (JUL - JUL)
1966 - 1966 LTJG Phillip J. Bull (JUL - NOV)
1966 - 1967 LTJG Walter E. Donaghy (NOV - ?)
1967 - 1968 LTJG David K. Rutheford
1968 - 1969 LTJG Marc L. Marker
1969 - 1970 LTJG Roland W. Callis
1970 - 1971 LTJG Shattie (? - OCT)
1971 - 1972 LTJG Guy Taylor (NOV - NOV)
1972 - 1973 LTJG Douglas D. Kroll (NOV - NOV)
1973 - 1974 LTJG Charles W. Belsky (NOV - ?)
1974 - 1975
1975 - 1976 LCDR Paul L. Hooper
1976 - 1977 LTJG David M. Blomberg
1977 - 1978 LTJG Dennis A. Stuart
1978 - 1979 LTJG Robert N. Zimmer (? - JUN)
1979 - 1980 LT John R. Williams (JUN - JUN)
1980 - 1981 LTJG Gregory S. Fitzpatrick (JUN - JUN)
1981 - 1982 LTJG Robert E. Garrett (JUN - 09 JUN)
1982 - 1983 LT Jay C. Ellis (09 JUN - JUN)
1983 - 1984 LTJG Will D. Agen (JUN - ?)
1984 - 1985
1985 - 1986 LTJG Joseph F. Rodriquez (? - 02 AUG)
1986 - 1987 LTJG Michael D. Hazel (02 AUG - ?) Decomm CO

Station Operations

LORAN-A

09 32 56.32 N 138 09 38.74 E (1960 Mercury Datum)

Chain: MARIANAS 
Station Letter designation: "Y"
 
Radio Call Sign:
 
Declared Operational date: 01 FEB 1965
 
Operations Ceased: 312400Z DEC 1977
 
Station Operation: Double MASTER (DM) 
 
Station pair:
Loran rate:
Coding delay:
Baseline:

Station pair:
Loran rate:
Coding delay:
Baseline:

Station pair:
Loran rate:
Coding delay:
Baseline:


YAP (M) - ANGAUR (S)
2L1
N/A
Approx. 286 Nautical miles

YAP (M) - COCOS ISLAND (S)
2L2
N/A
Approx. 442 Nautical Miles

YAP (M) - OROTE POINT (S)
2L2
N/A
Approx. 446 Nautical miles
On-air testing date:  
 
On-Air: 2L1: 01 FEB 1965
2L2: 01 FEB 1965
2L2: 01 FEB 1966
 
Off-Air: 2L1: 312400Z DEC 1977 Service terminated
2L2: 01 FEB 1966 Operations relocated to Orote Point
2L2: 312400Z DEC 1977 Service terminated
 
Monitor Rate: Cross rate monitoring 
 
Equipment: 1964: AN/FPN-30 Timer; T-325B Transmitter; AM-1700 Amplifier; AN/FPN-3A Switching 
 
Radiator: 120ft AS-1088-TRN
 

LORAN-C

09 32 45.789 N 138 09 54.970 E (WGS 1972)

Chain: NORTHWEST PACIFIC
Radio Call sign:
NRV-7
 
Operational date:
Declared Operation:
JAN 1965


Operations Ceased:

JUL 1987
 
Station Operation:

Single SLAVE/SECONDARY (SS)
Loran rate:
Function:
Baseline:


SS-3; 9970; 7930
"Z"
M-Z Approx. 930 Nautical miles
On-air testing date: 09 JAN 1965
 
On-Air: SS-3 (Z) 09 JAN 1965
9970 (Z) 25 FEB 1975
7930 (Z) 210300Z FEB 1981 Chain reconfigured due to Iwo Tower Maintenance
9970 (Z) 310700Z MAR 1981 Chain reconfigured to original operational status
 
Off-Air:

SS-3 (Z) 25 FEB 1975 Changed Identification of GRI
9970 (Z) 202300Z FEB 1981 Chain reconfigured due to Iwo Tower Maintenance
7930 (Z) 310300Z MAR 1981 Chain reconfigured to original operational status
9970 (Z) JUL 1987 Service terminated
Equipment: 29 JUN 1964: AN/FPN45/46 sn: 12 installed
28 SEP 1964: AN/FPN-45/46 sn: 11 installed
11 MAR 1976: LRE installed
Radiator: 07 MAY 1964: 1000 ft TLM - Dresser-Ideco 20097 structural failure
JAN 1965 - 011017 (Local) SEP 1987 Dresser-Ideco 20097 razed
 

Fred's Place Reunion Hall: OLD NEW

Awards:

Coast Guard Restricted Duty Ribbon

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General Information Books:

1964 U.S. Administrator Welcome Aboard Information Book -pdf

1966 General Information Book - pdf

1972 General Information Book - pdf

1973 General Information Book - pdf

1976 General Information Book - pdf

Documents:

1963 Yap Mooring Buoy -pdf

24 SEP 1964 OPCO 27-65 -pdf

09 NOV 1964 Coast Guard News Release - pdf

1973 External relations on Yap - pdf

1975 Yap Between Flights written by Carl Heine - pdf not complete

29 APR 1981 Relocation of Yap to Guam proposal - pdf

11 FEB 1983 District inspection report - pdf

16 JUN 1986 District 14 (dpl) Attorney Report of Title - pdf

1987 Closure Discussion of the LORSTA - pdf

17 JUL 1987 Closing Invitation - pdf

030451Z AUG 87 HC-130 Decomm Logisitics Support - pdf

010120Z SEP 87 Report of tower razed - pdf

26 SEP 2008 Loran Station Health Consulation - pdf

Pictures:

Coast Guard Official Photos

John Goodlett 1970 photo collection

Doug Kroll 1972-73 photo collection

Carl MacDonald 1974 photo collection

Jay Ellis 1982-83 photo collection

Chief Schroter 1986-87 photo collection

Station Patches

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c./1972-73
Contributed by Doug Kroll (CO 1972-73) & Carl MacDonald

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c./1973
Contributed by Doug Kroll (CO 1972-73)

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c./1976
Contributed by Gus MacFeeley

 

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