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Old 01-16-2012, 09:26 PM
David Paule David Paule is offline
Join Date: Dec 2009
Location: Boulder, CO
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Nope, you nailed it.

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Old 01-17-2012, 06:31 AM
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Rick6a Rick6a is offline
Join Date: Jan 2005
Location: Lake St. Louis, MO.
Posts: 2,346

Originally Posted by miyu1975 View Post
Does any one have a good photo of their safety wired prop. This is on my to do list and I am wanting to make sure I do it correctly. Also, what gauge wire is recommended for this..thanks in advance.
Sorry, I don't have a picture of the prop bolt nuts on the Hartzell. At the time, I did not realize those nuts are supposed to be safetied and only did that after finding out. I do remember they were a major pain to access and I wired them in pairs. Here is a view of the front of the Hartzell prop where access is far easier. Even so, with little talent for deftly manipulating safety wire pliers like the pros do, using .40, this is the result of my effort after at least six failed attempts.

Rick Galati
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Old 01-17-2012, 06:42 AM
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GLPalinkas GLPalinkas is offline
Join Date: Jan 2005
Location: Venice, Fl
Posts: 1,022
Default Sensenich Prop Safety Wired

Here is a photo of my Sensenich prop safety wired using .040.

Gary Palinkas - Gman.... VAF #161
Venice, Fl
RV-6 "Sassy" Flying 400 hrs since Oct 2011
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Old 01-17-2012, 07:25 AM
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AlexPeterson AlexPeterson is offline
Join Date: Sep 2005
Location: Ottertail, MN
Posts: 2,458
Default C/S prop

I'll be impressed with anyone who can finish a C/S prop mounting bolt safety wiring session and use only three pieces of wire! I usually have a fairly large pile of scrap wire chunks by the time I'm done. I use .032 for the prop.
Alex Peterson
RV6A N66AP 1750+ hours
KADC, Wadena, MN
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Old 02-25-2018, 01:37 PM
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Plummit Plummit is offline
Join Date: Apr 2010
Location: SoCal
Posts: 1,389

Those look really easy! I want to see someone do a Constant Speed McCauley hub prop - With .041 wire!

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Old 02-25-2018, 02:10 PM
lr172 lr172 is offline
Join Date: Oct 2013
Location: Schaumburg, IL
Posts: 6,686

Originally Posted by frazitl View Post
Look awfully loose to me. The bolts can turn ccw quite a bit before the wire does any good. The run between one bolt or nut and the next should be as tight as you can get it.
+1. Craig Catto has a good write up on this. He suggests very tight safety wire on his props (tight like guitar strings - he even suggests twanging them and listening) It only takes a few degrees of loosening to allow fretting between the prop and hub, which produce high heat and very fast wear. For most uses of safety wire, those would be fine, but not for the prop bolts on an FP.

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Last edited by lr172 : 02-25-2018 at 02:16 PM.
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Old 02-27-2018, 04:17 PM
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n82rb n82rb is offline
Join Date: Jan 2007
Location: fort myers fl
Posts: 1,088

people do tend to over twist safety wire. max on .032 to .041 is 12 twists per inch.

bob burns
Rv-4 n82RB
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Old 02-27-2018, 04:24 PM
Bavafa Bavafa is offline
Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,639

My suggestion or at least what I did that I think worked out well for the man prop bolt as they are harder to reach. Torque all the bolts to the spec and check to see which pairs line up well for the safety wire, mark them. Then you can start the wiring if they are lining up well or at least those that do line up. Then you can back out those that don't just to get the wire thru the hole and then re-torque to the specified value.
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