James and I made a Logging Arch for getting larger tree trunks out of the woods to where they can be milled. The trunk is secured to the chain, then as you drive off the chain is pulled up the diagonal pipe to lift the trunk clear of the ground; then it moves off, only dragging on the end.
I had previously knocked up a fairly spindly prototype to test out the theory. It lasted a few weeks before replacement became necessary.
So, we made a much more substantial version.
And off we go - no problem
Finally a bit of lunch.