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Jack- Republic of Korea

Last modified: 2014-05-01 by zoltán horváth
Keywords: korea | jack |
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[Korea Jack]
image by Željko Heimer

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Two basic version of the jack (designated often as Naval Ensign, too) are found in vex-literature. As Armand explained, the correct version is the one "without hooks" on anchors, and as Armand du Payrat also explained the flag in question is indeed the jack and not the naval ensign. The ROK Navy vessels use the national flag as the naval ensign.
Željko Heimer, 1 June 2001

I have official information on the Naval Jack (unfortunately dated in Korean) which contains usage guidelines and a specification diagram. Our illustration is essentially correct (with the canton an one-quarter the flag) except that the yin-yang should be one-half the canton in width (sited in the exact centre of that canton), that the emblem should begin one-eighth the flag below the top of the canton and end approx one-twentieth the flag from the bottom, and there is no white border around the yin-yang.
The info also gives five standard sizes and usage (fortunately translated into English) as follows:
1) 200 x 300cm
    a) ...on the bow of a large warship and
    b) special places.
2) 140 x 200cm (7:10?) ...on the bow of a medium-size vessel.
3) 90 x 135cm
    a) ...on the bow of the commander's office.
    b) Other occasions,
    c) On the bow of a small vessel and d) On the land.
4) 60 x 100 cm On a small boat.
5) a) ...on the conference table and
    b) ...on the office table.
Christopher Southworth, 04 March 2010

I made a nice picture of naval jack of South Korea at Jeju island:
The ROK Navy vessel used the national flag as the naval ensign.
Jan-Patrick Fischer, 19 October 2010