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LORAN STATION POINT GRENVILLE

Station Information

Site Survey:
 
Construction Date: 1945: Mobile Unit "G"
1946: Permanent buildings constructed
1954: Station rebuilt
 
Constructed by: 1945: Mobile Detachment "G"
 
Established:
Commissioned:
JUN 1945: Mobile Unit


Disestablished: 31 MAR 1980
 
Operated by:

USCG
Project code name:



Unit Identifier:

1940's: CG Unit 445
1970's: 13-40145

Mail address: 1948: Loran Radio Sta, Point Grenville, Moclips, Washington
1969: P.O. Box 68, Moclips, WA 98562
 
AKA:

MOCLIPS

HAM Call sign:

N/A

Personnel Allowance: OCT 1948: 1 Officer, 19 Enlisted
JAN 1953: 11 Enlisted
JAN 1967: 10 Enlisted
1976: 6 Enlisted - LRE reduction of personnel

Station Mascot:

Miscellaneous: On commercial power

Officer in Charge: 1945 - 1946
1946 - 1947
1947 - 1948
1948 - 1949
1949 - 1950
1950 - 1951
1951 - 1952
1952 - 1953
1953 - 1954
1954 - 1955
1955 - 1956
1956 - 1957
1957 - 1958
1958 - 1959 ETC Harold O. Stockman
1959 - 1960 ETC William Hiller
1960 - 1961 ETC Thomas Maxwell
1961 - 1962
1962 - 1963
1963 - 1964
1964 - 1965
1965 - 1966
1966 - 1967
1967 - 1968
1968 - 1969
1969 - 1970 ETC James L. Brummett
1970 - 1971
1971 - 1972
1972 - 1973
1973 - 1974
1974 - 1975 ETC William G. Weisheit
1975 - 1976
1976 - 1977 ETC Jerry W. Glasscock
1977 * 1980 ETCM Robert D. Paul


Note: Believe to be a family unit and the OICs had a longer tour however no supporting documentation at this time.

Station Operations

LORAN-A

47 18 20.6 N 124 16 34.8 W (1948 OP Data Report)
47 18 19.48 N 124 16 39.87 W (1960 Mercury Datum)

Chain: U. S. WEST COAST
 
Station Letter designation: 1L0/1L1 "W"
 
Radio Call Sign: N/A
 
Declared Operational date: 2H4: 15 JUL 1945
2H5: OCT 1945

Operations Ceased: 1L1: 30 OCT 1977
1L0: 312400Z DEC 1979
 
Station Operation: Double MASTER (DM)
 
Station pair:
Loran rate:
Coding delay:
Baseline:

Station pair:
Loran rate:
Coding delay:
Baseline:

PT. GRENVILLE (M) - CAPE BLANCO (S)
2H4; 1L0
1000us
Approx. 268.5 Nautical miles

PT. GRENVILLE (M) - SPRING ISLAND (S)
2H5; 1L1
1000us
Approx. 204 Nautical miles
On-air testing date: 2H4: 05 JUN 1945
2H5:
 
On-Air: 2H4: 15 JUL 1945
2H5: OCT 1945
1L0: 1970
1L1: 1970
 
Off-Air: 2H4: 1970 Change of rate
2H5: 1970 Change of rate
1L0: 312400Z DEC 1979 Service termination
1L1: 30 OCT 1977 Service termination

 
Monitor Rate: Cross rate monitoring
 
Equipment: 1945: Mobile unit: Model C timers; TDP-1 transmitters

1952: 2H4: UE-1 timers, T-325A/T-138 unmodified cosine squared pulse transmitter/amplifier, UM Unit Switch Amplifier Combo, 300ft tower

1952: 2H5: UE-1 timers, T-325A/T-138 modified for squared wave output transmitter/amplifier, UM Unit Switch Amplifier Combo, "T" antenna (Spring Island ulitizing older equipment)

1976: Installation of LRE
 
Antenna: 1945 - 1950: "T"
1950: 300ft Wind Turbine and "T"
 

Documents:

11 OCT 1948 Operational Data Report - pdf

01 JUL 1969 Machinery Equipment Report - pdf

17 DEC 1979 D13 OPODR 17-79 Disestablishment of Loran Station - pdf

Pictures:

img

photo from google earth

img
(courtesy U.S. Coast Guard c./1974)

img
(courtesy U.S. Coast Guard c./1974)

 

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