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Hi I am building a replica of Doug Bailey's Champion JU utility boat from the 60's. It takes a Mercury Mark 5 From the early 50's. I am looking for a Michigan Wheel AJ 520 prop size 6 3/8 X 6 1/2. Any information or help would be greatly appreciated.
Thanks Dave Dms2@metrocast.net
I have had these props for a long time....I don't know what rotation you have but maybe one would work.
I saw Doug Bailey race at the 1964 Stock Nationals in Modesto California….. he was fast. If my memory is correct his boat had a unique paint job. White with various color polka dot circles. I can’t remember if Doug won that year but his closest competition was Jim Downing. I think Doug won the 1963 Nationals in Boston.Quote:
Originally Posted by oopzdoo
Have you posted on hydroracer.net? Also try Alan VanWeele at 337-304-0379 or David VanWeele at 386-295-3391. Alan also now owns the hydroracer.net web site.
I don’t think they were using three blades back then. Be sure to post pictures of your finished project.
Thanks for the quick replies. Doug won in '63&'64 as far as I remember. The prop I am looking for is a two blade, left hand. It is small only 6 3/8 diameter x 6 1/2 pitch. The bore is splined to match the propshaft in the Mark 5. Kind of a needle in a haystack. I know where the winning prop is, but it is not available. This is a dream I've for a long time to complete. When finished I plan to donate it to the N.H. Boat museum, with an interesting history to go with it. Thanks for the help.
Thanks Dave
Would it be possible to have the prop digitized and copied on a CNC machine? It’s probably is not that expensive….. just a guess.Quote:
Originally Posted by oopzdoo
Thanks for that thought Dean. I've just begun the hunt at this point. I need to find one to copy first. I signed up to hydro racer last night. Will try posting there.
Thanks again
Dave
Also, as I mentioned above get in touch with Alan and David VanWeele. Also try, Frank Erion at 269-720-1337.Quote:
Originally Posted by oopzdoo
I'm on it ! Thanks
To help with my search, I've told to search for an old JU prop and adapter. I guess I didn't know that the prop had a separate adapter. I'll stay on the hunt. Again, All leads appreciated
Thanks Dave.
To help with my search, I've told to search for an old JU prop and adapter. I guess I didn't know that the prop had a separate adapter. I'll stay on the hunt. Again, All leads appreciated
Thanks Dave.
Welcome to the forum! It sounds like you're doing some research for a project. It can be hard to know where to start sometimes, but that's why the forum community is here. We are all here to help each other out. If you can provide some more specific information about the prop and adapter, our knowledgeable members may be able to give you some helpful leads. Good luck with your search!Quote:
Originally Posted by oopzdoo
I put the specs in my original post. I found a reference to Michigan Prop "AJ 520". It is 6 3/8 x6 1/2 left hand 2 blade. The chart says it was used for J utility with a one hundred pound driver. The Merc Mark five and Super Five have a splined prop shaft , just under 1/2 inch diameter in diameter. The book talks about an adapter for the prop to fit the shaft, but I haven't found info to lead me to that. I have found some props with close to the right diameter, but way to much pitch. So I'm still looking. Thanks for your reply and any help. Dave
Certainly, digitizing and copying a propeller using CNC (Computer Numerical Control) machining is a viable option. CNC machining allows for precision and accuracy in replicating the design.Quote:
Originally Posted by DeanFHobart
Thanks for your reply. I need to find a prop to copy and so far that has been a challenge. Old outboard meets are starting soon. Seems to a good resource for info, but not an actual piece so far. I will check with my local machine shops to see who can help. Thanks for your tip. Dave
Best of luck with your search for the prop and adapter.Quote:
Originally Posted by oopzdoo