Reminds me very much of this https://en.wikipedia.org/wiki/Tri-star_(wheel_arrangement) https://en.wikipedia.org/wiki/Tri-star_(wheel_arrangement) which was use

Reminds me very much of this https://en.wikipedia.org/wiki/Tri-star_(wheel_arrangement) https://en.wikipedia.org/wiki/Tri-star_(wheel_arrangement) which was used in the movie Damnation Alley for their Landmaster https://en.wikipedia.org/wiki/Landmaster https://en.wikipedia.org/wiki/Landmaster which was quite functional considering it was custom built for the movie. While long, This video https://youtu.be/ZZYT2nYd46o https://youtu.be/ZZYT2nYd46o shows the gang rotate near 40 seconds and at end you can see it used in water (6:33) Being the scenes on its construction https://youtu.be/26n3RsXNyKE https://youtu.be/26n3RsXNyKE and it still exists as of 2016