8040, 42 or 43 ???

How to keep the Cessna 170 flying and airworthy.

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DoubleOught
Posts: 34
Joined: Wed Feb 09, 2011 9:52 pm

8040, 42 or 43 ???

Post by DoubleOught »

Just sold a scooter and want to buy a climb prop, I've read the pros vs cons. I have a 1400 ft strip with 30 ft obstacles on each end so I want every advantage I can muster. I'm running an O-300 with a 7652 prop now. I have a 170 B with a Sportsman STOL kit and VG's . Which one is best in the 80" swing 40, 42, or 43" ??? OOW
There are old pilots & There are bold pilots, But there are no old bold pilots !!!
2010 Team Tandem Airbike N700XX
1953 Cessna 170-B N3401C
First plane Cessna 175A N7000E
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Joe Moilanen
Posts: 600
Joined: Sun Dec 28, 2003 5:45 am

Re: 8040, 42 or 43 ???

Post by Joe Moilanen »

I fly out of a 650' strip with trees at both ends and my 8043 works wonders.

Joe
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pdb
Posts: 466
Joined: Tue Apr 23, 2002 3:39 am

Re: 8040, 42 or 43 ???

Post by pdb »

My prop started out life as an 8040 and the former owner repitched to 8042 which I still have. He reported almost no increase in cruise (still slow) and negligible difference in climb (still the best you can hope for in a 170.)
Last edited by pdb on Sat Apr 19, 2014 4:18 pm, edited 1 time in total.
Pete Brown
Anchorage, Alaska
N4563C 1953 170B
http://farm3.staticflickr.com/2366/2527 ... 4e43_b.jpg
counsellj
Posts: 420
Joined: Sat Apr 30, 2005 2:58 pm

Re: 8040, 42 or 43 ???

Post by counsellj »

I run an 80/42. Still able to see 95Kts cruise, but increased climb by 30%. If you are making it in and out with your 76, Then I think you would be happy with the 80/42. 80/40 might be too far to go for you.
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Showboatsix
Posts: 113
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Re: 8040, 42 or 43 ???

Post by Showboatsix »

Hi guys where you get TSTC propeller from?
What are the approximate costs?
UAO, Aurora Oregon
Hanger 26
56' C-172, With Conventional Gear Conversion
S/N 28963
N6863A
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pdb
Posts: 466
Joined: Tue Apr 23, 2002 3:39 am

Re: 8040, 42 or 43 ???

Post by pdb »

The STC for the 80/40 prop is available from Kenmore Air Harbor in Seattle.

http://www.kenmoreairharbor.com/stcs.html

The prop is a McCauley available through their dealers and probably from the usual suspects like Aircraft Spruce.
Pete Brown
Anchorage, Alaska
N4563C 1953 170B
http://farm3.staticflickr.com/2366/2527 ... 4e43_b.jpg
robw56
Posts: 87
Joined: Fri Oct 29, 2010 12:45 am

Re: 8040, 42 or 43 ???

Post by robw56 »

I installed an 80/42 on my 170 a couple years ago. I believe the STC from Kenmore was $200.
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