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LORAN STATION IWO JIMA
LORAN A: 24 48 34.29 N 141 19 25.85 E (1960 Mercury Datum)
LORAN C: 24 48 04.100 N 141 19 28.999 E

Pictures

Documents

Fact Sheet

Site Survey:

 

Construction Date

 

Constructed by:

 

Established:

LORAN A: MAY 1945
LORAN C: 1963

Disestablished:

LORAN A: 31 DEC 1977
LORAN C: 1993

Operated by:

USCG

Chain:

LORAN A: JAPAN
LORAN C: NORTHWEST PACIFIC

Station Letter designation:

LORAN A:

4H4/4H5/2H6, “K”

2H7, “Y”

LORAN C: MASTER (M)

Station code name:

 

Station Unit Number:

348

14-Z40155

Station nickname:

 

On-air testing date:

LORAN A:

16 MAY 1945 – 4H4
1 DEC 1945 – 4H5

LORAN C:

25 JUL 1963 – SS-3

21 DEC 1964 – SS-3 Replacement tower completed

Operational date:

LORAN A: 10 JUN 1945 – 4H4
LORAN C: 21 JAN 1964

Operations Ceased:

LORAN A: 312400Z DEC 1977
LORAN C: 29 SEP 1993

Station Operation:

LORAN A: Double MASTER
LORAN C: MASTER

Station pair:

LORAN A:
4H4, 4H7 - ICHI HANARE
4H5, 4H6, 2H7 – OSHIMA
2H6 – GESASHI
2H7 - HACHIJO JIMA

LORAN C:
SS-3, 9970, GESASHI, HOKKAIDO, MARCUS, YAP
9970, GESASHI, HOKKAIDO, MARCUS, YAP*, BARRIGADA

Loran Rate:

LORAN A: 2H6, 2H7, 4H4, 4H6, 4H7

On-Air:

LORAN A:
4H4, 10 JUN 1945 – ICHI HANARE
4H5, 25 DEC 1945 – OSHIMA
4H6, 1 FEB 1950 – OSHIMA
4H7, 1 FEB 1950 – ICHI HANARE
2H7, 1964 OSHIMA
2H6, 1964 – GESASHI
2H7, 1967 - HACHIJO JIMA

LORAN C:
SS-3, 21 JAN 1964
SS-3, 1 JAN 1965
9970, 25 FEB 1975
9970, 310700 MAR 1981

Off-Air

LORAN A:
4H4, 31 JAN 1950 – ICHI HANARE
4H5, 31 JAN 1950 – OSHIMA
4H6, 1964 – OSHIMA
4H7, 1964 – ICHI HANARE
2H7, APR 1966 – OSHIMA
2H6, 312400Z DEC 1977 – GESASHI
2H7, 312400Z DEC 1977 – HACHIJO JIMA

LORAN C:
SS-3, MAR 1964 – TOWER FELL
SS-3, 25 FEB 1975
9970, 202300Z FEB 1981 – OFF AIR-TWR MAINTENANCE
9970, 29 SEP 1994

Monitor Rate:

 

Equipment:

Loran A:
Equip replaced 1963

Loran C:
1964 - FPN-45/46, 1350ft Twr,1.8mW

Personnel Allowance:

 

Miscellaneous:

1st Station located on KANGOKU IWO 45-49 until moved onto the
main island - KITANO POINT
27JUN50-27JUL54: Koran War Service medal
CO: LT Jim Woodle 64/65- created savings time for USCG portion of island to frustrate local AF command.
Loran C Twr fell Mar 1964, killed 6
Chain reconfigured in 1964 due to Iwo and Yap tower failures
Loran C: FEB - MAR 1981 Off Air for Tower maintenance
Clarinet Pilgrim installed 1968
XFER to JAPAN SEPT 1994
Japanese closed sta – moved Master to NII JIMA

Commanding Officers / Officers in Charge

LORAN A:
1st CO: LTJG Reginald O Falk 45-46
CO: LT Fagan 1947-48
CO: LT Harold Parker 1955
CO: LT Chuck Leddy 1958-59
CO: LT Arnold Beran 1961
CO: LT Fritz Melsheimer 1962 – 63
CO: LT Chuck Kelly 1963-64

LORAN A/C:
CO: LTJG Cecil Gray 64 – 9/64
CO: LT Jim Woodle 9/64 - 8/65
CO: LTJG Dan White 8/65 – 66
CO: LT Donnie Green 1968 – 69
CO: LT Stash 70-10/71
CO: LT Tom Sheeman 10/71 - 10/72
CO: LT Stan Lehman 10/72-10/73
CO: LT Verne Bennett 10/73-10/74
CO: LT William Pitt 10/74-10/75
CO: LT Mahar 10/75 - 10/76
CO: LT Alex LeGault 10/76-5/77

LORAN C:
CO: LT Gabriel Kinney 80-81
CO: LT Jon Allen 1984-85
CO: LT LaRochelle 1987-88
CO: LT Douglas Premoe 1988-89
Last CO: LT M.D. Dausses 1993

OTHERS – YEAR UNKNOWN
CO: LT Chuck Kelly
CO: LT Edward E Page
CO: LT Meyer

 

Pictures  Click on picture for larger image

Google Earth - Loran Station Iwo Jima

Picture from google earth.

Loran Station Iwo Jima, circa 1950

 

Loran-C Timer Room, circa 1969

Loran Station Iwo Jima Radio Room, circa 1969

Iwo Jima Air Base

Stone carving on Iwo Jima

Documents

1955 Letter from Iwo Jima to CCGD14 concerning a War Game exercise.  [pdf file]

 

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