Coordinating with the town fire department is an excellent idea. They may even be interested in the possibility of using your burn piles as a training exercise. They will definitely have advice as to the size of the burn piles and the clearance to nearby combustibles. :fing32:
Depending on the size of the thorn bush, an appropriately sized tracked excavator might be a better option than rubber tired tractors. Tear it down, bust it up, scrape it into a burn pile all its own and dig a deep hole to rake into for the remains, including any thorns left on the ground in the area. The rubber tired tractors could backfill the hole later without worries of thorn induced flat tires.
If the ground is level and has no major humps and bumps, a LT should have no problem with a water filled 48" roller. It's rolling weight as opposed to dragging weight. I have pulled my 17 cu-ft trailer, on 2 16x6.50-8 tires, full of dirt (about 2000 lb) on lawns with no problem. A 48" roller has almost 4 times the footprint and half the weight, and is larger in diameter besides.
Depending on the size of the thorn bush, an appropriately sized tracked excavator might be a better option than rubber tired tractors. Tear it down, bust it up, scrape it into a burn pile all its own and dig a deep hole to rake into for the remains, including any thorns left on the ground in the area. The rubber tired tractors could backfill the hole later without worries of thorn induced flat tires.
If the ground is level and has no major humps and bumps, a LT should have no problem with a water filled 48" roller. It's rolling weight as opposed to dragging weight. I have pulled my 17 cu-ft trailer, on 2 16x6.50-8 tires, full of dirt (about 2000 lb) on lawns with no problem. A 48" roller has almost 4 times the footprint and half the weight, and is larger in diameter besides.