National Aeronca Association Bulletin Board

I got an e-mail from PropWorks, Inc today and the $2575 price includes a bolt kit. They state that the 74/43 is a "standard" prop and that McCauley does not offer a 74/41. So----it appears that the 74/43 is standard and that one would have to have it twisted to something less for a climb p...

Mike, thanks, I have heard too many good things about the 74/43. That is what I will get. Nathan, I read your experiences with the new prop a few mos back. Hope all worked out with the extra holes, etc. I got my quote from PropWorksInc. I got two other quotes and they were in the $2600 range. I will...

Nathan,
Thanks, I got the picture. Maybe McCauley dosen't have a stock off the shelf series any more. I get a quote of $2500, plus freight, for a new 74/43. Appreciate the help.

ike, Thanks for sharing your experience. I am currently using a wood prop 72CK42. That is a lot less to turn than the 74/43. I have good performance now. About 75-80 cruse, but the climb part is most important because of the high heat in the summer. The engine is fresh and good compression. I have r...

Jerry,
That was my reply above. Iwasn't signed in; goes to show that I don't know how to use the forum correctly. Any comments appreciated.

Need a McCauley 1B90CM74/43 or 74/41 for a 7AC 65hp flange type. New or used.
Contact G. Ellisor "scrap@academicplanet.com" Thanks.

I read all the discussion regarding props, especially recent dicussion from Nathan. I plan to buy a McCauley 1B90CM74/43 for my 65hp. Only question is whether I should buy a 74/41 or the 74/43. I am a little confused here. I orginally thought the 43 was a climb prop, but it may be standard. Confused...

The prop was made to specs for the 7ac and has the sign off of an FAA official. Not just an IA.

Here is the deal on the Falcon Propellers. They are a small manufacturer located at Route 1, Box 262, Washington, Ok. 73093. Phone (405) 288-6778. The prop was manufactured in accordance with FAA approved design data and airworthiness. It was signed of by the FAA and all logs, paperwork, and install...

Yep, the metal face plate is there. New hup, prop and all, looks proper. The prop is made by Falcon. I could not find a web site regarding their product. I viewed the Sensenich site and it has good info; however, I am unsure about the bolt size and if all wood props would be considered the same. Bel...

Having trouble finding the torque specifications for a wood prop on a 7ac 65 hp. What are they and are they the same for all brands of wood props? Thanks for help & suggestions.