Tour de Force, Fred!

Getting a tank to look the part is one major challenge, but getting it to function as it should is quite another. However, you took on a uniquely difficult model to make
and made it swim!.
Love the video clips you posted previously, and remain in awe of your adaptive skills

A worthy winner.
"Get your facts first, and then you can distort them as much as you please"- Mark Twain.