Borer prop?

N419A · Post by **N419A** » Fri Jul 23, 2004 8:19 am

I'm looking into a climb prop. I see a lot of the Alaskans talk highly of the McCauley 8043. Is this the 1A175DM? I've talked with a few folks at some of the dealer and there dosen't seem to be a 43 there is a 8042 is this what people are buying and repitch to 43 or am missing something? I have also seen the 1A170 is this a nouther possiblity for a 80 in flat prop? What are you guys buying for a (Borer) prop. for a 170b with the O-300 w/ 8 bolt?

Thanks any info. is appreciated,
Paul K.
FAI, AK

spiro · Post by **spiro** » Fri Jul 23, 2004 9:47 pm

I stuck a new 1A175 DM 8042 on mine a few years ago. I love it, have never considered putting the 76" back on. From what I gathered the 40 pitch doesn't buy much in t/o performance but is noticably slower in cruise.

A "Borer" prop is a misnomer. Roger Borer got the STC for big (82"?) props on Cubs a long time ago and so all long Cub props came to be called "Borers". In time, folks not understanding this origin started calling long props even on Cessnas "Borers".

Paul S.

zero.one.victor · Post by **zero.one.victor** » Sat Jul 24, 2004 12:25 am

I thought the "borer" name got hung on those props due to the way their owners bragged on & on about the increased performance!

N419A · Post by **N419A** » Sat Jul 24, 2004 7:03 am

Thanks, spiro that what i was looking for.

N3243A · Post by **N3243A** » Sat Jul 24, 2004 9:45 pm

I agree with Spiro. I put an 80-42 on 4 years ago and have never wanted to put the 76-53 back on. If I was to fly outside I might do it but otherwise the performance gains (except cruise, you will lose 10-15mph) are worth it. If you intend to use your plane on skis, you will definetely want one also, as in deep or sticky snow, a 170 needs all the pull you can get.

Bruce

N2830C · Post by **N2830C** » Mon Jul 26, 2004 5:33 am

Whats the difference between the McCauley 1A175-DM(STC by Kenmore Air) and McCauley 1A1757DM80(STC by Alaska Propeller Specialists), if any.

spiro · Post by **spiro** » Mon Jul 26, 2004 11:04 am

you can find Kenmore.

alaskan99669 · Post by **alaskan99669** » Thu Feb 09, 2006 11:41 pm

I just got off the phone with Kenmore Air (800) 423-5526 and they will sell a copy of their STC #SA111NW for $100. That will make the 1A175-DM McCauley 8042 prop that's been hanging on the front of my plane since '99 legal (once an A&P checks it out and files the forms).