Those numbers are a time/date stamp that ive used for years. Its far more accurate than the forums. Its formatted with time in 24hr format then month day year
i have been loving the military builds, especially the Huskies. I have seen you have been using FantomWorks in your builds, but that isn't updated. There is a revamped version of the mod, named Eskandare Aerospace.
Thanks man! Yeah I've updated to Eskandare! I've got a side KSP project for the time being, but once that is done I'll go back to military/aircraft builds
I don't think he wants to be bothered about this by random people, since he requested both of the forum threads for those mods to be closed in March 2019.