Kevin,

on an older mac with a single mouse button, hold the Ctrl key down while clicking. It is equivalent to a right click. Then select "save link as" using a regular click (no key modifier). If you have never used contextual menus on a mac (typically accessed via right click), you're in for a pleasant surprise! Right clicking is very useful on computers.

Newer macs today come with "location sensitive" mice meaning that if you click on the right side of the mouse you get a "right click". The mice themselves actually have no "buttons" per se whatsoever.

Perhaps the attached JPG will help while you figure out the PDF download. As you can see, the CG as on the LE of the fixed landing gear block. Since the plan is not to scale, I can't tell you X many inches from the LE.

Actually, if you tell me what the exact wing span is tip-to-tip, I can scale the plans back up to full size and re-post them. Those plans will be a little more useful if you need them for making any repairs on the model.

David.