I just did a search on DL-50 template in Yahoo and got a bunch of links. The one I used I believe was from DL of Australia. I'll be right back to post the link. As always, make sure you measure it to make sure it printed out to actual size and is accurate. I found that my actual engine stand off's were a mm less than the template showed. So I marked the holes .5 mm inward on the template and for the first time an engine template worked with no re-drilling and filing.

Ok that was easy, here it is:

http://www.rcaerobats.net/GAS_ENGINE...lltemplate.pdf

Even though the template says 80mm wide, and actually measured exactly that....my stand off's measured only 79mm apart.