"Martin R. Howell" wrote in message
ink.net...
I followed the instructions given in the same article with my 12.5 inch
Starfinder and had NO problems. The 5 exhaust holes are about an inch
in diameter and spaced perhaps a wee bit more than an inch from each
other.


As indicated in my other response... I have 8 holes, 2 and a half inches
apart. ;-)