After consulting with the Corvaircraft community, I decided to drill four new holes in my sprinner back plate, meaning I only needed to enlarge two existing holes. The 3rd picture below is from Jay Bannister to illustrate the concept. Thanks, Jay. After that, it was just a matter of lining up the right length bolts (AN6-36A in my case) and putting the prop sandwich together. Because this is a temporary installation, I didn't set the pitch on the prop. Additionally, I only torqued the bolts to 15 foot pounds and did not install the four 1/8" bolts toward the ends of the Warp Drive hub. This was primarily to make sure all parts mated properly and to get the kick of seeing the big fan up front! Unless it gets too awkard working around it, I'll probably leave it on at least through the end of the year.
