Let's begin.

Pic. 1. Place the props down in the jig, rotate props so that the leading edges touch the 4 vertical pins and trace the curvature of the hub.

Pic. 2. Flip over and trace the back side of the hub.

Pic. 3. Lay the prop in the jig and clamp down. There's a dowel down in the prop hole going through the jig to hold it from shifting side to side while routering. The arrows indicate the direction of movement of the router tool.

Pic. 4. Get ready to router. The depth of the router must be set to half the thickness (+1/64" / -0" tollerance) of the prop blade.

Pic. 5 & 6. Saftey glasses on and router away slowly and carefully.

Pic. 7. Repeat for the back side of the other prop.

Pic. 8. Your part way their.

Stay tuned later, Gunny