Razorback props - comments wanted

As I understand it, there are three types of propellers used by the Jugs, the Hamilton Standard, the Curtiss Electric and the Curtiss asymetrical type.

This is just my observation based on photos I've seen: Hamilton Standard with 'bulb' spinner. Curtiss Electric and Curtiss asymetrical type with conical spinner. However, not very sure on this because the quality of the photos are not good, there are Hamilton Standard propellers with cuff that use the conical spinner( the blades look like Hamilton but definitely they have cuffs) on Bubbletop P-47s.

For Razorbacks, it is definitely 'bulb' spinner for Hamiltons and conical for the Curtiss type. Hope this helps.

Did a little research since I posted. Come to find out, yes, there were 3 different props. The original Curtis prop and then the Hamilton and a paddle blade Curtis Electric, which was fitted to later models. Depending on where the jug was produced, either Evansville or Farmingdale, determined which prop they would get -- for a while. Eventually, they all had the Curtis paddle blade (including the "N"). My references show D-22 aircraft with the Hamilton prop, so that is the way I'll finish it. Apparently, this is not a very interesting topic as only one member has responded. Thanks for that response, I appreciate it.

There were actually four props used on the P-47D-M series. The Hamilton Standard only used the one type prop boss on the P-47 Thunderbolt, however. Hope this helps.