danny_galaga Posted February 7, 2021 Posted February 7, 2021 Particularly in SE Queensland but I guess anywhere in Australia.
IBob Posted February 7, 2021 Posted February 7, 2021 I can't speak for Australia, but in NZ all the hotrod guys use it, so it's readily available through the various outlets that cater to petrolheads.........) 1
danny_galaga Posted February 8, 2021 Author Posted February 8, 2021 Ah, it's also called lockwire. Now I can see it on eBay. Is Mallin brand ok?
IBob Posted February 8, 2021 Posted February 8, 2021 (edited) Can't comment on brand. You may want to take advice from others here on appropriate gauge etc. In fact, I'd like to know myself: I originally was loaned wire and lockwire pliers from a motorcycling mate. I don't know what the gauge of his wire was, but it seemed to me a bit light. So when I bought my own wire and pliers I got a heavier gauge, which is quite thick: the container says .032" diameter, which I see is 20 gauge. Mine also says SST 302/304 (it can't be both?) ANN (annealed?) ASTM-A-580 which is the spec. I'd have to say it doesn't seem to me to be overly strong. Or perhaps it's severely weakened when overtwisted, which I have learned to try and avoid. Later: just looked at Aircraft Spruce, and this is the stuff I have, so looks like I'm at least in the ballpark: https://www.aircraftspruce.com/catalog/appages/safetywire.php?clickkey=4386 Edited February 8, 2021 by IBob
Thruster88 Posted February 8, 2021 Posted February 8, 2021 5 hours ago, danny_galaga said: Ah, it's also called lockwire. Now I can see it on eBay. Is Mallin brand ok? Yes, Mallin is used on VH aircraft. 0.032 is the common size. 2
Blueadventures Posted February 8, 2021 Posted February 8, 2021 9 hours ago, danny_galaga said: Particularly in SE Queensland but I guess anywhere in Australia. All fastening / engineering supply stores sell it, try a phone around. 1
Blueadventures Posted February 8, 2021 Posted February 8, 2021 3 hours ago, Thruster88 said: Yes, Mallin is used on VH aircraft. 0.032 is the common size. 0.040 is the size for any turnbuckles in a control system.
danny_galaga Posted February 8, 2021 Author Posted February 8, 2021 All I know is I was using .82mm, which was recommended by the kit manual. I had a roll of it, but I've gone and lost the stupid thing! 1
Thruster88 Posted February 8, 2021 Posted February 8, 2021 9 hours ago, Blueadventures said: 0.040 is the size for any turnbuckles in a control system. I have worked at a maintenance org, cessna piper airtractor etc, for a couple of years now and have never seen 0.040 used on a control turnbuckle. If however the manufacturer calls for 0.040 then that should be used. It would be a struggle to get 0.040 on to some of the more inaccessible turnbuckles🤔 2
Blueadventures Posted February 8, 2021 Posted February 8, 2021 22 minutes ago, danny_galaga said: All I know is I was using .82mm, which was recommended by the kit manual. I had a roll of it, but I've gone and lost the stupid thing! Ok then 0.032 is 0.82mm. Try Skyshop in Brisbane he should have some also.
Blueadventures Posted February 8, 2021 Posted February 8, 2021 11 minutes ago, Thruster88 said: I have worked at a maintenance org, cessna piper airtractor etc, for a couple of years now and have never seen 0.040 used on a control turnbuckle. If however the manufacturer calls for 0.040 then that should be used. It would be a struggle to get 0.040 on to some of the more inaccessible turnbuckles🤔 At my final inspection I had to redo all safety on control system turnbuckles with 0.040. I had done then with 0.032. I did read later that they did need to be 0.040 in my situation. These are wire for aileron, rudder and elevator control. I’ll look into it a bit more now. Yes the thicker wire takes some care and effort. Thanks. 1
Admin Posted February 8, 2021 Posted February 8, 2021 I don't understand why some of you guys don't support our own pilot supplies shop Clear Prop, it's in the menu...it is also what helps to pay the costs of providing this site for you 2
Blueadventures Posted February 8, 2021 Posted February 8, 2021 Ian I took it that he wanted it the same day and could drive over and purchase. Cheers.
Blueadventures Posted February 8, 2021 Posted February 8, 2021 1 hour ago, Thruster88 said: I have worked at a maintenance org, cessna piper airtractor etc, for a couple of years now and have never seen 0.040 used on a control turnbuckle. If however the manufacturer calls for 0.040 then that should be used. It would be a struggle to get 0.040 on to some of the more inaccessible turnbuckles🤔 Just looked up AC43.13-1B in 7-182 table 7-8 guide says cable 1/8” double or single wrap of 0.040. 1
danny_galaga Posted February 9, 2021 Author Posted February 9, 2021 4 hours ago, Admin said: I don't understand why some of you guys don't support our own pilot supplies shop Clear Prop, it's in the menu...it is also what helps to pay the costs of providing this site for you I will get it from you then! I've glanced at the shop in the past but got the impression it was more for accessories like headsets etc
aro Posted February 9, 2021 Posted February 9, 2021 On 08/02/2021 at 3:02 PM, IBob said: I'd have to say it doesn't seem to me to be overly strong. Or perhaps it's severely weakened when overtwisted, which I have learned to try and avoid. It's only supposed to be twisted 6-8 turns per inch, according to the manuals 1
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