1950s Bombardier B-12 snowcat.
https://s3-us-west-1.amazonaws.com/h...ardier_b12.jpg
2:08 video:
https://www.youtube.com/watch?v=IFhUS3a8Xis
Previously:
https://www.homemadetools.net/forum/...610#post128369
https://www.homemadetools.net/forum/...294#post126875
https://www.homemadetools.net/forum/...5715#post82392
