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South Korean Roundel

Last modified: 2021-08-24 by christopher oehler
Keywords: south korea | roundel | yin-yang |
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image by Klaus-Michael Schneider, 20 March 2009

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The Roundel

It is probably based on the aircraft marking of the USAF. It is a white rectangle, fimbriated blue with a red horizontal line in the middle. In the centre a roundel is superimposed, showing the Yin-Yang symbol. In this version it looks like a big red drop upon a completely blue disc.
Source: David DONALD: „Taschenhandbuch der Militärflugzeuge"; ISBN: 3-89880-122-5; p.175
Klaus-Michael Schneider, 20 March 2009

I downloaded a picture of a ROKN P-3 Orion showing the Korean roundel fimbriated black; the ying-yang fimbriated white, as you may see. It differs a little from previously reported variants.
Art, 01 February 2014

Previously reported variant

image by Željko Heimer

Purple bordered roundel of red over blue divided wavy fimbriated white set over a purple bordered white-red-white horizontal stripe.
Željko Heimer, 30 May 2001

The Han Guk Gong Gun was formed in 1948. Homepage at
An American style roundel was adopted in 1950. The Yin-Yang in red-blue (with white separation) with white bars bordered blue and red central stripe.
Military Aircraft Insignia of the World and B.C Wheeler: Aircraft Markings (1986) and FOTW show the Yin-Yang as bordered in blue, but it seems that it was white sometime in the past (maybe just a variant?). See
Following the American footsteps, a low visibility roundel was adopted as seen at
The naval air arm uses the same roundel but with white border for the Yin-Yang
Dov Gutterman, 19 June 2004