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LORAN STATION GUAM ISLAND

COCOS ISLAND

13 13 42.1 N 144 38 40.5 E (1944)

13 13 42 N  144 38 40 E (Dec 1948 OP DATA Report)

OROTE POINT

13 26 36.03 N 144 37 22.24 E (1960 Mercury Datum)

LORAN C MONITOR

13 35 19.8 N 144 50 24.6 E (WGS-72)

Fact Sheet

Site Survey: SEP/OCT 1944

Construction Date 11 NOV 1944 – 27 NOV 1944: COCOS ISLAND

1964 - OROTE POINT
1 MAR 1945 Station commissioned turnover to 14th District

Constructed by: CONSTRUCTION DET “C” – COCOS ISLAND

Established: 1944

Disestablished: 15 FEB 1964 - COCOS Island
JAN 1978 - Orote Point

Operated by: USCG

Chain: The MARIANAS

Station Letter designation: 4H2, 4H3 “V”
2L2, 2L3 “U”

Station code name:

Station Unit Number: CG Unit 336
Navy Unit 926
Box 163, FPO, SF 96680

Radio Call Sign: NRV1

Station aka: COCOS, OROTE PT

On-air testing date: 4H2 – 27 DEC 1944 – ULITHI
4H3 – 28 NOV 1944 - SAIPAN
Operational date: 4H2 – 12 JAN 1945
4H3 – 16 DEC 1944

Operations Ceased: COCOS ISLAND – FEB 1965
OROTE PT – 31 DEC 1977

Station Operation: Double SLAVE/SECONDARY (DS)

Station pair: 4H2, 2H2, 2L2 – ULITHI
4H3, 2H3, 2L3 – SAIPAN
2L2 - YAP

Loran Rate: 4H2, 4H3, 2H2, 2H3, 2L2, 2L3

On-Air: 4H2, 12 JAN 1945 – ULITHI (POTANGERAS IS.)
4H3, 16 DEC 1944 – SAIPAN
2H2, 01 JUN 1952 - ULITHI (FALALOP IS.)
2H3, 01 JUN 1952 - SAIPAN
2L2, 01 MAY 1953 – ULITHI
2L3, 01 MAY 1953 – SAIPAN
2L2, 01 FEB 1965 - YAP

Off-Air 4H2, 1 JUN 1952 – Change of rate
4H3, 1 JUN 1952 – Change of rate
2H2, 01 MAY 1953 - Change of rate
2H3, 01 MAY 1953 - Change of rate
2L2, 31 JAN 1965 – YAP replaced ULITHI. ULITHI off air.
2L3, 312400Z DEC 1977 – Loran A phased out
2L2, 312400Z DEC 1977 – Loran A phased out

Monitor Rate: LORAN C:
NORTHWEST PACIFIC

Equipment:
Personnel Allowance: Jan 1953 – LTJG, ETC, ET2, 5 ET3, RM2, CS1, HM1, EN1, EN3, BM1, DC2, 2 SN

Miscellaneous: 17 NOV 1949 – Typhoon ALLYN destroyed station – station off-air
MAR 1950 – Station rebuilt at previous Nov 1949 location
09 MAY 1950 - Typhoon DORIS station evacuated
1954 – Typhoon – Off air for 40 minutes while the antenna was replaced
20 JUN 1962 - Non-restricted
1964 - Moved from COCOS Is to OROTE PT
25 NOV 1965 - 3 WWII Japanese soldiers walked out of the jungle
1967 – Name of station changed to GUAM ISLAND
May 1976 – Typhoon Pamala – 4 days of storm – station on-air entire time

Commanding Officers /
Officers in Charge
COCOS
1st CO: ENS David B McCoy 1944 - 1945
Temp OINC: RM3c Daniel P Sanderson ? – 25 OCT 1946
1st OINC: ETC (Z) David A Webb 25 OCT 1946 -
OINC: ETC (Z) William H Hudson 1948
OINC: ETC (Z) Fidilla Henderson ? – 5 SEP 1949
OINC: ETC (Z) James L Glass 5 SEP 1949 - ?
OINC: BMC Taplin 1960 - 1961
CO: ENS Bornstein 1964 - 1965

OROTE Point

OINC: ETC Gale ? – NOV 1968
OINC: ETC Pat Corley NOV 1968 – JUL 1969
OINC: ETC Charles Ingram JUL 1969 - 1970
OINC: ETC Ted Turner 1974 - 1975
OINC: ETC C R Barber 1977

Fred's Place Reunion Hall

Cocos:  OLD NEW
Orote Point:  OLD 

Documents:

28 OCT 1946 - CoC Ltr - pdf
16 APR 1948 - CGC KUKUI C & R Inspection Report - pdf
13 MAY 1948 - Approval relocation of station msg - pdf
10 DEC 1948 - Operational Data Report - pdf
05 SEP 1949 - CoC Ltr - pdf
17 NOV 1949 - Typhoon Damage - pdf
30 AUG 1950 - USAF request for Homing Beacon Installation - pdf

Pictures

Click on picture for larger image

Loran Stations on Guam

Loran stations on Guam: Picture from google earth

Loran Station Guam (Cocos Island)

Cocos Island: Picture from google earth

Loran Station Guam (Orote Point)

Orote Point: Picture from google earth 2002

Loran Station Guam (Orote Point)

Orote Point: Picture from google earth 2017

Loran Monitor Guam

Loran Monitor: Picture from google earth

Cocos Lagoon Boundary

Cocos Lagoon Boundary

The photos below were located at NARA Washington DC
(U.S. Coast Guard official photos)

Aerial View Cocos

Aerial View - c./1948

CGC Kukui view of station from 3 -4 miles

CGC KUKUI 3 -4 miles from station 25 APR 1950

circa 1950 reconstruction after 1949 Typhoon

c./ 1950 Reconstruction material for station after Nov 1949 Typhoon

Photos below were contributed by Jack Winslade c./1970

Orote Point Station view from main road

Station building viewed from main road

Orote Point view from access road

View of Orote Point (Guam) station building from access road.

Orote Point building view from transmitting tower

Station building as viewed from the transmitting tower

Timer room fisheye view

Timer room (fisheye view)

AN/FPN-30 Timers

AN/FPN-30 Timers

Transmitter Alley

Transmitter Alley

Cliffs of Orote Point view from antenna field

Cliffs of Orote Point, rear of antenna field

ET3 George McEwan on duty

ET3 George McEwan on duty

ET3 George McKwan on the phone

ET3 George McKwan on the phone

ETC Charlie Ingram

ETC Charlie Ingram

Chief Ingram relaxing after an intense day

ETC Charlie Ingram relaxing after a very intense workday

Guamanian Rail

Guamanian Rail

Sunset view with tower

Guamanian sunset with Orote Pt tower looking out over Orote Point

Fluorescent Bulb lit from transmitter RF

Radiation Power lights fluorescent tube

Thanks Jack!

The below photo was contributed by Mike Blaschum

Aerial View Cocos Island

Cocos Island Loran. Taken from a Navy helo that came over once a month to pay us in two dollar bills.

The boat in the foreground ia a Japanese fishing vessel long since grounded. We used it for target practice with our M-1s every two weeks or so.

Thanks Mike!