[AT] Plows, was Re: Supervision

[Greg Hass]

The 720 plow was a newer version of the 450. It came as an automatic 
reset or a toggle trip (had to back up to reset bottom) .  The big thing 
about this plow, at least in our area, was that it had the best trash 
clearance of any plow around, and most were sold with 18 inch bottoms. 
They also pulled fairly easy and did a very good job of turning the 
ground. They shined best in corn stalks. Earlier they made a 710 which I 
had once; a real piece of junk, it plugged real often as it had poor 
clearance and the tail wheel ran on top of the ground instead of in the 
furrow making depth control very hard. Everything wrong with the 710 was 
corrected on the 720 and then some. If you google 450 and 720 plows they 
have some pictures of each to look at.
      Greg Hass