</font><font color="blue" class="small">( I have done some work on the geometry of the grapple arm and cylinder pivot locations. I wrote a simple spreadsheet to allow me to plug in placement values and it will compute my cylinder stroke. )</font>
WhiteRock,
Jim said in a previous post that he "envys people with a work shop". I envy people like yourself that have brains to figure out problems. I'm no dummy but I do most of my projects by the old trial and error method. I do appreciate your offer on the spreadsheet perhaps I can make future changes that would benefit me. I'll PM you my email address. As far as the number of cylinders, I'm using one and I did think of mounting 2 outside the arms as you suggest, but I would of had to make my grapple wider and I really didn't want the extra weight.