Yes, There was a THUDD theTraveller Highly Unofficial Democratic
Design Derby. It's up (partly) on Archive.org.

https://web.archive.org/web/20010331050251/http://thuddd.homepage.com/

I'm not sure how much of this is here. but it might give you search
criteria for the TML archives.

On Fri, Jan 23, 2026 at 7:17 PM Charles McKnight - chuckmcknight at
gmail.com (via tml list) <xxxxxx@simplelists.com> wrote:
>
> Hi All,
>
> I seem to remember a ship/vehicle/etc. design ‘competition’ that ran on the TML in its early days. I *think* it was called THUDD but I may be misremembering.
>
> Does anyone have those archives or could point me to where I could relocate that material?
>
> Thanks!
>
> Chuck
>
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Thomas Jones-Low
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