I did just exactly what Mathew Spencer suggested in his post, and quickly found this link. Looks like all the info you need.
http://members.cox.net/davidfee/PROPS.html With Bolly going Tango Union, and Brian Eather hanging up his spurs for a few years, it looks like we might all be having to learn a new skill. A good start is getting a nice hunk of aluminum plate drilled and reamed for a slip fit for a 1/4" dowel pin (or whatever size you want for the shaft hole). I have spoken to Tom Knoppi (former F2C team member), and he says the way to make good props is to make a mold, make a prop. Correct that prop, and use it to make a better mold. Hopefully, two molds will be all you need to make. Use the same baseplate for both, duh.
The racers and speed guys don't seem to use heat to repitch their props, and may select different resins for that reason.

Steve
Edit: Sorry, Jim Gilmore...I scrolled down as I wrote that post, to look at the previous posts, and took the name nearest the post to be the author of the post. What an obvious ploy that is! Take a look...you'll see what I mean.
