This image is based on a Jes Goodwin sketch for the Imperial Navy insignias. I intend no copyright on the image and release it for anyone who has any interest in using the image for any purpose.
Dakka Thread: https://www.dakkadakka.com/ dakkaforum/posts/list/750972.page
(you have to remove the space in the link)
PSD file: http://notforhire.org/files/fighter%20wing.psd
I have the same concept art, the "I" is the generic Imperial symbol, the wheel is a ship's wheel and then various other markings for other branches of the navy.