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  #1  
Old 01-20-2021, 09:15 AM
HansLab HansLab is offline
 
Join Date: Jan 2015
Location: Netherlands
Posts: 125
Default safety wire

All articles I read in Kitplanes, all books I see: they all put pressure on safetywiring bolt on the propellor and the brakes.
Howcome my '12 doesn't obey that rule? I'm thinking of replacing the bolts by drilled ones during maintenance - will take a while though: first flight accomplished but due to regulations of the airport flight number two is still to be flown...
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  #2  
Old 01-20-2021, 09:48 AM
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rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,316
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Quote:
Originally Posted by HansLab View Post
All articles I read in Kitplanes, all books I see: they all put pressure on safetywiring bolt on the propellor and the brakes.
Howcome my '12 doesn't obey that rule? I'm thinking of replacing the bolts by drilled ones during maintenance - will take a while though: first flight accomplished but due to regulations of the airport flight number two is still to be flown...
Because the fasteners on those items use Nord-lock washers.

https://www.nord-lock.com/nord-lock/products/washers/
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  #3  
Old 01-20-2021, 10:19 AM
NinerBikes NinerBikes is offline
 
Join Date: Dec 2018
Location: Granada Hills
Posts: 1,136
Default

I did adjust my 2012 prop when I got it home in June of last year. All 6 bolts do have Nordlocks, which replace safety wire.

Since your plane is new, you'll probably be adjusting the pitch of your prop too. Ideally, you want to see 5175 to 5200 rpm at a Vy 75 kt airspeed climb rate. Anything less and your fpm climb rate suffers at the expense of cruise speed and exhaust temps climbing up.

I will also tell you you will want to use NordLocks on the 4 screws/ bolts on your gascolator too, instead of getting in there to cut out and then replace that miserable saftey wire when you do your Inspections, annually. The location of them is terrible for removal of and installing new safety wire.
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Last edited by NinerBikes : 01-20-2021 at 10:23 AM.
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  #4  
Old 01-20-2021, 11:08 AM
Mich48041 Mich48041 is offline
 
Join Date: Apr 2008
Location: Riley TWP MI
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Nord Lock washers are used in pairs. Make sure they are orientated correctly.
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