From: rmowery42@charter.net   
      
   In article , fos@sdf.org says...   
   >   
   > I have an old Ariens front tine tiller, late 70's / early 80's vintage   
   > and the tines are 10 inches diameter. 6 hp w/ reverse. Was given to me by   
   > someone too old to wrestle with it anymore. I'm 60ish and still have a   
   > whole lot of beast left in me. :) The shield over the tines is 12 inches   
   > from the ground. Doing several passes I can dig 15-18 inches with it.   
   >   
   >   
   >   
      
   Maybe that is how they  calculace the depth.  One pass for the Yardmax   
   and several passes for the DR.   
      
   Just truth by one company and trickery 'truth' by another.   
      
   I have a front tine tiller and never measured the depth but can go deep   
   with several passes. Guess that the height of the shield on the rear   
   tine unit is the real limit as how deep one can go with multi passes.   
      
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