OMG!! that reminds me of a story. When I was in the Navy, I was TAD to a helicopter squadron, Sikorsky SH3H. To move those you attach a tow bar to the single rear wheel. And to tow them we used similar but different tow tractors, real heavy, real low geared, REAL LOW. And a ford 302 engine, with a governor . When I was in charge of the mid watch, a few of us hot rodders would get 4 or 5 tractors out on the apron, and remove the governors, and race them! now, they weren't real fast, BUT got rolling right now!! Any way, when finished put governors back on. WELL one day, a certain dick head lieutenant, was going to beat the rush and get a bird he was scheduled to fly, to the flight line early. He has no business moving the birds, AT ALL!!! He got on a tractor, one that everyone liked because it was just a little bit quicker then the rest. Hooked up the tow bar, to the rear wheel, Gunned it to take off. Well, someone forgot to put the governor back on. Off it goes, With the birds wheel firmaly attached to the tow bar, BUT no bird!! It had ripped off the wheel!!! OMG!! No more races after that!!! **** hits fan in a big way.