Today's Message Index:
----------------------
1. 01:22 AM - Re: Re brake master cylilnder (s) (Richard McLachlan)
2. 04:59 AM - Testing Avionics (Robert Schoenberger)
3. 05:24 AM - Re: Tesing Avionics (Kevin Kinney)
4. 05:26 AM - Re: 601 Main Gear Bungees (Phil Raker)
5. 05:41 AM - CH152? (Phil Raker)
6. 06:39 AM - Re: CH152? (Jason Ready)
7. 07:01 AM - Re: Testing Avionics (Carlos Sa)
8. 07:59 AM - Testing Avionics (Robert Schoenberger)
9. 08:21 AM - More on testing.... (Zed Smith)
10. 08:31 AM - External Jumper (James Sagerser)
11. 09:08 AM - Re: External Jumper (Jon Croke)
12. 09:08 AM - Re: External Jumper (Larry McFarland)
13. 09:08 AM - Re: External Jumper (Carlos Sa)
14. 09:17 AM - Re: External Jumper (Bryan Martin)
15. 10:51 AM - Re: More on testing.... (Gary Gower)
16. 01:45 PM - Firewall forward kit for CH-701 (Roma L. Skinner)
17. 03:43 PM - Re: Testing Avionics (Mike)
18. 05:39 PM - Wake Turbulence (gpjann@juno.com)
19. 06:14 PM - Re: External Jumper (Benford2@aol.com)
20. 06:23 PM - Re: Re: 601 Main Gear Bungees (Jeffrey Glasserow)
21. 06:41 PM - Re: CH601 HDS POH (Jeffrey Glasserow)
22. 07:26 PM - Re: External Jumper (Bob Miller)
23. 07:28 PM - torque for nylon-insert self-locking AN3 bolts/nuts (Bob Miller)
24. 07:53 PM - Re: torque for nylon-insert self-locking AN3 (Randy Stout)
25. 07:53 PM - Re: torque for nylon-insert self-locking AN3 bolts/nuts (cgalley)
26. 07:57 PM - Re: torque for nylon-insert self-locking AN3 bolts/nuts (cgalley)
27. 08:20 PM - Re: torque for nylon-insert self-locking AN3 (Jim and Lucy)
Message 1
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| Subject: | Re: Re brake master cylilnder (s) |
--> Zenith-List message posted by: "Richard McLachlan" <richard@rodsley.net>
I used to have a Rallye Club which had a nose wheel but no steering linkage.
The nosewheel was fully castoring and you had to use differential braking to
steer it. Once you got used to it, it was easy.
----- Original Message -----
From: "Gary Gower" <ggower_99@yahoo.com>
Subject: Re: Zenith-List: Re brake master cylilnder (s)
> --> Zenith-List message posted by: Gary Gower <ggower_99@yahoo.com>
>
> Roy,
>
> Turning around (180) in a narrow strip, even a "nose dragger" needs a
little help from the diferencial brakes, not to much, to stress the
firewall and with a little trottle help.
>
> Saludos
> Gary Gower
> landing in a 20 ft wide strip
> (better with a 90 degree 40 mph crosswind) :-) :-)
>
> roy vickski <rvickski@yahoo.com> wrote:
> --> Zenith-List message posted by: roy vickski
>
> Paul,
> I am using a single master cylinder from a 96 geo
> metro, mounted on outside firewall. This is possible
> because my 701 is a nose dragger and steers with the
> front wheel. Tail draggers need differential braking
> but nose draggers don,t.
> Possible food for thought.
>
> RoySzarafinski
> 701sp plans
> plumbing ect.
>
>
> __________________________________
> http://info.mail.yahoo.com/mail_250
>
>
> ---------------------------------
> Send a seasonal email greeting and help others. Do good.
>
>
Message 2
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| Subject: | Testing Avionics |
--> Zenith-List message posted by: "Robert Schoenberger" <hrs1@frontiernet.net>
I got a very cheap (and small) motorcycle battery from an auto supply store. It
has a strap handle which is handy for moving it around. I charged it a year
ago and it works fine. Robert Schoenberger 701
Message 3
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| Subject: | Re: Tesing Avionics |
--> Zenith-List message posted by: Kevin Kinney <kkinney@fuse.net>
I've got a couple ways of bench testing. For simple stuff like strobes I use a
power supply from an old PC. 12v and it's very steady.
If you want to be more exact when testing voltage indicators, you can get a 13.8v
power supply from MPJA.COM. For details on why 13.8v, check the AeroElectric
list.
Regards,
Kevin Kinney
Message 4
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| Subject: | RE: 601 Main Gear Bungees |
--> Zenith-List message posted by: Phil Raker <phadr1@yahoo.com>
Jeff,
I believe the story you are referring to, was a builder article in the
latest issue of the Zenair News. I agree, it sounds like a good idea, but will
wait until my plane is flying to try it out.
Phhil Raker N556P HDS/Stratus ~85% completed
> Subject: Zenith-List: RE: 601 Main Gear Bungees
>
>--> Zenith-List message posted by: "Jeffrey Glasserow"
<jeffglass@starband.net>
>
> I seem to remember reading about one of the members who removed one of his
> main gear bungees on each side to provide for smoother landings with a bit
> more "give". I CAN'T FIND THE POST! Whoever wrote it would you be kind
> enough to forward it to me or repost. I checked the archives and couldn't
> find it so I might have read it on someone's web site...
> Thanks in advance
> Jeff Glassserow
> CH601 HDS
> Lyc 0-235
> N6384E
>
__________________________________
http://info.mail.yahoo.com/mail_250
Message 5
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--> Zenith-List message posted by: Phil Raker <phadr1@yahoo.com>
Contrary to what some of ZAC's advertizing indicates, the 601XL was originally
designed to be a FASTER 601, NOT a plane to fit the LSA rule. The CH152 is
Chris's latest design, which is designed from the start to fit LSA. It is also
intended to be used as a primary trainer. As such, it may be a factory-built
plane, rather than an experimental. My understanding is that it is a
high-wing, which looks a lot like the Cessna 150/152, flies a lot like the
C152, performs a lot like (or better than) the C152, has STOL performance
similar to the CH601-HD or XL (w/full flaps), better cruise speed than the
CH701, so Chris (or someone) has dubbed it the CH152. It remains to be seen
whether that label will stick. Stay tuned ....
Phil Raker N556P HDS/Stratus ~85% completed
> Subject: Zenith-List: CH152?
>
> --> Zenith-List message posted by: Rmtnview@aol.com
>
> What's a CH152?
>
>rog
>
__________________________________
http://my.yahoo.com
Message 6
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--> Zenith-List message posted by: "Jason Ready" <jready@efni.com>
Does anyone know if Chris Heintz intends to develop the "CH152" into a
"CH172" eventually??
I will be building a 4 seater sometime in the not to distant future, and I
am currently heading towards the CH801. I need four seats for the family,
and want something that can go on floats.
FWIW, a CH172 would be fantastic!!
Still dreaming.
Jason
"Are you still wasting your time with spam?...
There is a solution!"
Protected by GIANT Company's Spam Inspector
The most powerful anti-spam software available.
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Message 7
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| Subject: | Re: Testing Avionics |
--> Zenith-List message posted by: Carlos Sa <carlosfsa@yahoo.com>
Mike, would that power supply output be "clean" enough to power electronic devices?
I was cautioned against that a while back, althogh it can safely power lights and
motors...
Carlos
do not archive
--- Mike <wizard-24@juno.com> wrote:
> --> Zenith-List message posted by: "Mike" <wizard-24@juno.com>
>
>
> I bought (from JC Whitney, I think) one of those portable power supply things
that are used to
> charge batteries and provide power to portable devices. You plug it in the wall,
and there are
> several different DC voltage "outs" (including 12V) which you can use to power
almost anything,
> including the electrical system on your plane. Plus, they're not very expensive.
Really comes in
> handy.
>
> Mike Fortunato
Message 8
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| Subject: | Testing Avionics |
--> Zenith-List message posted by: "Robert Schoenberger" <hrs1@frontiernet.net>
List . . . earlier today, I mentioned that I use a small 12 v. motorcycle battery
to test my avionics (just the fuel sender and strobe/wingtip lights to date).
I should have mentioned a very important point and that is to insert a fuse
in the circuit. I used a 2 amp for the fuel sender and a 4 amp for the wingtip
combo. Several have blown so it's a caution worth doing in case you short
circuit something. I have several wires with alligator clips on the ends.
In the positive lead, there is inserted a small cartridge fuse holder. Sorry
for this ommission. Robert Schoenberger 701
Message 9
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| Subject: | More on testing.... |
--> Zenith-List message posted by: Zed Smith <zsmith3rd@earthlink.net>
Just a reminder.......
Try to use a RED clip lead for Hot/Positive/"Plus", and a BLACK for the Not-Hot/Ground/Negative/"Minus"/Earth
connection, otherwise you'll be attempting to put
the smoke back into the recently-failed item under test. And our Canadian
friends will be paying more brokerage fees for replacement parts.
Happy New Year to all.
Zed/701/R912/do not archive
Message 10
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--> Zenith-List message posted by: James Sagerser <alaskajim@cox.net>
I would like to install an external plugin to jumpstart my CH 701 when
(and if) the battery is too low to start my Jabiru. Would like to find
something that is light weight and is flush with the cowling. Any
ideas? Jim
Message 11
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| Subject: | Re: External Jumper |
--> Zenith-List message posted by: "Jon Croke" <jon@joncroke.com>
Jim,
I have thought about this too, and I think what I am going to do is use a
single (not duplex) female electrical outlet, rated at 20-30 amps. This
would be perfect for charging, (not for jumping directly), lightweight and
easily mounted flush behind an access cover anywhere on the plane.
Then a simple whip cord with a male at one end , (the other end connected to
your charger) would plug into this receptacle when charging.
I am also planning on adding one of those visor shaped solar panels to my
plane to trickle charge the battery when its just sitting (very inexpensive
nowadays!). This should alleviate the low battery when the plane sits for
long periods w/o activity.
Just a thought!
Jon
(thinking deeply about getting the smoke back into devices that were
reversed-polarized.....what a novel idea!)
> --> Zenith-List message posted by: James Sagerser <alaskajim@cox.net>
>
> I would like to install an external plugin to jumpstart my CH 701 when
> (and if) the battery is too low to start my Jabiru. Would like to find
> something that is light weight and is flush with the cowling. Any
> ideas? Jim
>
>
Message 12
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| Subject: | Re: External Jumper |
--> Zenith-List message posted by: "Larry McFarland" <larrymc@qconline.com>
Jim,
Aircraft Spruce has two types of plugs that are flush mount, the more
notable
being the Piper type that has a spring loaded door. I thought it a bit
heavy,
but at Farm and Fleet, there are several plugs with doors that service
trailer connections that might be adapted. I just put a pair of cigarette
lighter
plugs on a plate, soldered them and mounted them under the belly to allow
a battery tender to be hooked up to each during long periods of winter.
These would not be suitable for starting, but do keep batteries topped off.
Pictures on the completions page of www.macsmachine.com
Larry McFarland - 601HDS
Do Not Archive
----- Original Message -----
From: "James Sagerser" <alaskajim@cox.net>
Subject: Zenith-List: External Jumper
> --> Zenith-List message posted by: James Sagerser <alaskajim@cox.net>
>
> I would like to install an external plugin to jumpstart my CH 701 when
> (and if) the battery is too low to start my Jabiru. Would like to find
> something that is light weight and is flush with the cowling. Any
> ideas? Jim
>
>
>
Message 13
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| Subject: | Re: External Jumper |
--> Zenith-List message posted by: Carlos Sa <carlosfsa@yahoo.com>
Jim, I suggest you look into Larry McFarland's web site: http://www.macsmachine.com/
I believe he did that recently. He flies a CH601-HDS, but I presume you can use
the ideas...
Carlos
--- James Sagerser <alaskajim@cox.net> wrote:
> --> Zenith-List message posted by: James Sagerser <alaskajim@cox.net>
>
> I would like to install an external plugin to jumpstart my CH 701 when
> (and if) the battery is too low to start my Jabiru. Would like to find
> something that is light weight and is flush with the cowling. Any
> ideas? Jim
Message 14
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| Subject: | Re: External Jumper |
--> Zenith-List message posted by: Bryan Martin <bryanmmartin@comcast.net>
on 12/30/04 11:26 AM, James Sagerser at alaskajim@cox.net wrote:
> --> Zenith-List message posted by: James Sagerser <alaskajim@cox.net>
>
> I would like to install an external plugin to jumpstart my CH 701 when
> (and if) the battery is too low to start my Jabiru. Would like to find
> something that is light weight and is flush with the cowling. Any
> ideas? Jim
Aircraft type:
http://www.aircraftspruce.com/nsearch.php?s=AN2552-3A
And
http://www.aircraftspruce.com/catalog/elpages/jumperplug.php
Automotive style:
http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=1616&prmenbr=3
61
Or
http://www.jegs.com/cgi-bin/ncommerce3/ProductDisplay?prrfnbr=1633&prmenbr=3
61
Here's a cheaper version of the above for up to 50 Amps:
http://shop.store.yahoo.com/hm-performance/mobaqucomi.html
Do a Google search on "battery quick connect plugs" for a bunch of
alternatives. Check Ebay motors for "Quick connect".
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
In Phase I testing.
do not archive.
Message 15
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| Subject: | Re: More on testing.... |
--> Zenith-List message posted by: Gary Gower <ggower_99@yahoo.com>
Like a related to electric/electronics joke we have here:
Every electric or electronic device has certain amount of smoke built in by the
factory...
Once the smoke comes out of the unit/part... will never be able to work again.
:-) :-)
Saludos
Gary Gower
Do not archive
Zed Smith <zsmith3rd@earthlink.net> wrote:
--> Zenith-List message posted by: Zed Smith
Just a reminder.......
Try to use a RED clip lead for Hot/Positive/"Plus", and a BLACK for the Not-Hot/Ground/Negative/"Minus"/Earth
connection, otherwise you'll be attempting to put
the smoke back into the recently-failed item under test. And our Canadian friends
will be paying more brokerage fees for replacement parts.
Happy New Year to all.
Zed/701/R912/do not archive
---------------------------------
Message 16
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| Subject: | Firewall forward kit for CH-701 |
--> Zenith-List message posted by: "Roma L. Skinner" <roma@airmail.net>
Mark
I have the Firewall forward kit with the Woodcomp prop from Skyshop on my 701,
it is very well thought out, also looks good, only use caution if you have the
912S because it will take you to VNE.
Message 17
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| Subject: | Re: Testing Avionics |
--> Zenith-List message posted by: "Mike" <wizard-24@juno.com>
> would that power supply output be "clean" enough to power electronic > devices?
I was cautioned against that a while back, althogh it can
> safely power lights and motors...
Certainly a good question, and I'm not sure of the answer. My gut feeling tells
me it's fine for short duration testing, but I'm sure there are purists out there
who would disagree. Guess I'll find out if my radio blows up!
Mike Fortunato
601XL
do not archive
Juno Gift Certificates
Give the gift of Internet access this holiday season.
http://www.juno.com/give
Message 18
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--> Zenith-List message posted by: gpjann@juno.com
I was flying an Ercoupe, in a flight of two with an Aeronca.
On one of the intermediate stops we made I took off and got hit hard from
his prop wash. Had my hands full for a couple of seconds.
Just a little reminder that turbulence can come when least expected.
GPJ
Message 19
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| Subject: | Re: External Jumper |
--> Zenith-List message posted by: Benford2@aol.com
In a message dated 12/30/2004 9:32:04 AM Mountain Standard Time,
alaskajim@cox.net writes:
>
> I would like to install an external plugin to jumpstart my CH 701 when
> (and if) the battery is too low to start my Jabiru. Would like to find
> something that is light weight and is flush with the cowling. Any
> ideas? Jim
>
I used the Cole-Hersee plug that most Pipers use. Has a nice little flap to
cover the female part of the plug and is pretty lightweight. Any auto part
store has them in stock.
Ben haas N801BH
Message 20
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| Subject: | RE: 601 Main Gear Bungees |
--> Zenith-List message posted by: "Jeffrey Glasserow" <jeffglass@starband.net>
Well, I did find the article and the member removed one 1080 HD bungee from
each main gear. He said he was a bit on the light side at 150 lbs and
never got the gross weight of the plane over 1058 lbs. He had no adverse
effects and never came close to bottoming out the gear on the wheel pants.
Now, I'm heavier, at 225lbs. and plan to fly the plane at full gross of
1200 lbs. What are the groups thoughts about going to one 1280 HD bungee
instead of a 1080 HD? Will it give me that litttle bit more support?
Anxious eyes await your responses!
Happy New Year to all!
Jeff Glasserow
CH 601 HDS
N6384E
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com]On Behalf Of Phil Raker
Subject: Zenith-List: RE: 601 Main Gear Bungees
--> Zenith-List message posted by: Phil Raker <phadr1@yahoo.com>
Jeff,
I believe the story you are referring to, was a builder article in the
latest issue of the Zenair News. I agree, it sounds like a good idea, but
will
wait until my plane is flying to try it out.
Phhil Raker N556P HDS/Stratus ~85% completed
> Subject: Zenith-List: RE: 601 Main Gear Bungees
>
>--> Zenith-List message posted by: "Jeffrey Glasserow"
<jeffglass@starband.net>
>
> I seem to remember reading about one of the members who removed one of his
> main gear bungees on each side to provide for smoother landings with a
bit
> more "give". I CAN'T FIND THE POST! Whoever wrote it would you be kind
> enough to forward it to me or repost. I checked the archives and couldn't
> find it so I might have read it on someone's web site...
> Thanks in advance
> Jeff Glassserow
> CH601 HDS
> Lyc 0-235
> N6384E
>
__________________________________
http://info.mail.yahoo.com/mail_250
Message 21
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| Subject: | RE: CH601 HDS POH |
--> Zenith-List message posted by: "Jeffrey Glasserow" <jeffglass@starband.net>
Has anyone SPECIFICALLY developed a POH for the HDS? I know there is a POH
posted for the HD but the info is all wrong for the HDS. According to the
U.S. AIM each airplane must have a POH on board at all times and is subject
to FAA ramp checks. (Ask me, I found out the hard way...) I've got all the
raw data from the test flights and the final certification, but it would
sure be easier if someone had already done this and it was just a "fill in
the blanks" situation. I'd be more than happy to collaborate with someone
more aeronautically and engineering inclined than I am to draw up the
various charts and graphs necessary to write an HDS specific POH to meet FAA
regs. My forte is automotive technical writing and I've been told I have
the ability to cut through the "chaff" pretty well. Any takers?
Best regards for the New Year!
Jeff Glasserow
CH 601 HDS
N6384E
Message 22
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| Subject: | Re: External Jumper |
--> Zenith-List message posted by: "Bob Miller" <drmiller@cvillepsychology.net>
I purchased the ACSpruce Piper Type Socket P/N 11042, but decided not to
use it. Paid $15.85 + shipping, will sell (it's new, unused) for $10 if
anybody wants it. I can throw in the reprint from Aeroelectric Connection
that tells how to adapt, wire and mount it.
Bob
Message 23
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| Subject: | torque for nylon-insert self-locking AN3 bolts/nuts |
--> Zenith-List message posted by: "Bob Miller" <drmiller@cvillepsychology.net>
I've just realized I don't know how much to torque my AN3 bolts. The tables in
in my 1998 edition AC 43.13 state 20-25 foot pounds for AN3 bolts, but that
appears to be WAY too much for the nylon insert self-locking nuts, as it strips
them.
Table 7-2 (page 7-12 ) provides torques for reusing self-locking nuts, but I cannot
find the thread size for the nuts I'm using. The table provides torques
for thread sizes 7/16 -20, 1/2-20, 9/16-20 etc for "Fine Thread Series", and
7/16-14, 1/2-13, 9/16-12 etc for "Coarse Thread Series", but I don't think
any of these would be AN-3 bolts. I've looked through the Spruce catalog for
hints as to which thread size would be the AN3, but am coming up at a loss.
It seems like it must be obvious somehow, but I can't find it. (Incidentally,
these torques for the Fine and Coarse Thread Series are given in "INCH-POUNDS"
instead of foot-pounds, which I assume is a typo error---what do you think?)
Soooo, anybody know what is the proper torque for a self-locking nylon-insert nut
for an AN3 bolt?
Thanks,
Bob
Message 24
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| Subject: | Re: torque for nylon-insert self-locking AN3 |
bolts/nuts
--> Zenith-List message posted by: Randy Stout <n282rs@earthlink.net>
20-25 Inch pounds (not FOOT pounds) would be correct. If you were to tighten it
with a nut driver or ratchet, you would probably over torque it without realizing
it.
A AN3 bolt is a 3/16-32 or fine thread.
Randy Stout
n282rs "at" earthlink.net
www.geocities.com/r5t0ut
-----Original Message-----
From: Bob Miller <drmiller@cvillepsychology.net>
Subject: Zenith-List: torque for nylon-insert self-locking AN3 bolts/nuts
--> Zenith-List message posted by: "Bob Miller" <drmiller@cvillepsychology.net>
I've just realized I don't know how much to torque my AN3 bolts. The tables in
in my 1998 edition AC 43.13 state 20-25 foot pounds for AN3 bolts, but that
appears to be WAY too much for the nylon insert self-locking nuts, as it strips
them.
Table 7-2 (page 7-12 ) provides torques for reusing self-locking nuts, but I cannot
find the thread size for the nuts I'm using. The table provides torques
for thread sizes 7/16 -20, 1/2-20, 9/16-20 etc for "Fine Thread Series", and
7/16-14, 1/2-13, 9/16-12 etc for "Coarse Thread Series", but I don't think
any of these would be AN-3 bolts. I've looked through the Spruce catalog for
hints as to which thread size would be the AN3, but am coming up at a loss.
It seems like it must be obvious somehow, but I can't find it. (Incidentally,
these torques for the Fine and Coarse Thread Series are given in "INCH-POUNDS"
instead of foot-pounds, which I assume is a typo error---what do you think?)
Soooo, anybody know what is the proper torque for a self-locking nylon-insert nut
for an AN3 bolt?
Thanks,
Bob
Message 25
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| Subject: | Re: torque for nylon-insert self-locking AN3 bolts/nuts |
--> Zenith-List message posted by: "cgalley" <cgalley@qcbc.org>
There is either typo or you have mis-read the chart. It should be
INCH-pound. so divide by 12.
Cy Galley - Chair,
AirVenture Emergency Aircraft Repair
A Service Project of Chapter 75
EAA Safety Programs Editor - TC
EAA Sport Pilot
----- Original Message -----
From: "Bob Miller" <drmiller@cvillepsychology.net>
Subject: Zenith-List: torque for nylon-insert self-locking AN3 bolts/nuts
> --> Zenith-List message posted by: "Bob Miller"
<drmiller@cvillepsychology.net>
>
> I've just realized I don't know how much to torque my AN3 bolts. The
tables in in my 1998 edition AC 43.13 state 20-25 foot pounds for AN3 bolts,
but that appears to be WAY too much for the nylon insert self-locking nuts,
as it strips them.
>
> Table 7-2 (page 7-12 ) provides torques for reusing self-locking nuts, but
I cannot find the thread size for the nuts I'm using. The table provides
torques for thread sizes 7/16 -20, 1/2-20, 9/16-20 etc for "Fine Thread
Series", and 7/16-14, 1/2-13, 9/16-12 etc for "Coarse Thread Series", but
I don't think any of these would be AN-3 bolts. I've looked through the
Spruce catalog for hints as to which thread size would be the AN3, but am
coming up at a loss. It seems like it must be obvious somehow, but I can't
find it. (Incidentally, these torques for the Fine and Coarse Thread
Series are given in "INCH-POUNDS" instead of foot-pounds, which I assume is
a typo error---what do you think?)
>
> Soooo, anybody know what is the proper torque for a self-locking
nylon-insert nut for an AN3 bolt?
>
> Thanks,
> Bob
>
>
Message 26
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| Subject: | Re: torque for nylon-insert self-locking AN3 bolts/nuts |
--> Zenith-List message posted by: "cgalley" <cgalley@qcbc.org>
Get the new AC43.13-1B Table 7-1 Recommended torque values (inch-pounds)
Cy Galley - Chair,
AirVenture Emergency Aircraft Repair
A Service Project of Chapter 75
EAA Safety Programs Editor - TC
EAA Sport Pilot
----- Original Message -----
From: "Bob Miller" <drmiller@cvillepsychology.net>
Subject: Zenith-List: torque for nylon-insert self-locking AN3 bolts/nuts
> --> Zenith-List message posted by: "Bob Miller"
<drmiller@cvillepsychology.net>
>
> I've just realized I don't know how much to torque my AN3 bolts. The
tables in in my 1998 edition AC 43.13 state 20-25 foot pounds for AN3 bolts,
but that appears to be WAY too much for the nylon insert self-locking nuts,
as it strips them.
>
> Table 7-2 (page 7-12 ) provides torques for reusing self-locking nuts, but
I cannot find the thread size for the nuts I'm using. The table provides
torques for thread sizes 7/16 -20, 1/2-20, 9/16-20 etc for "Fine Thread
Series", and 7/16-14, 1/2-13, 9/16-12 etc for "Coarse Thread Series", but
I don't think any of these would be AN-3 bolts. I've looked through the
Spruce catalog for hints as to which thread size would be the AN3, but am
coming up at a loss. It seems like it must be obvious somehow, but I can't
find it. (Incidentally, these torques for the Fine and Coarse Thread
Series are given in "INCH-POUNDS" instead of foot-pounds, which I assume is
a typo error---what do you think?)
>
> Soooo, anybody know what is the proper torque for a self-locking
nylon-insert nut for an AN3 bolt?
>
> Thanks,
> Bob
>
>
Message 27
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| Subject: | Re: torque for nylon-insert self-locking AN3 |
bolts/nuts
--> Zenith-List message posted by: Jim and Lucy <jpollard@ciaccess.com> bolts/nuts
At 10:27 PM 12/30/2004 -0500, you wrote:
>--> Zenith-List message posted by: "Bob Miller"
><drmiller@cvillepsychology.net>
>
>I've just realized I don't know how much to torque my AN3 bolts. The
>tables in in my 1998 edition AC 43.13 state 20-25 foot pounds for AN3
>bolts, but that appears to be WAY too much for the nylon insert
>self-locking nuts, as it strips them.
>
>Table 7-2 (page 7-12 ) provides torques for reusing self-locking nuts, but
>I cannot find the thread size for the nuts I'm using. The table provides
>torques for thread sizes 7/16 -20, 1/2-20, 9/16-20 etc for "Fine Thread
>Series", and 7/16-14, 1/2-13, 9/16-12 etc for "Coarse Thread
>Series", but I don't think any of these would be AN-3 bolts. I've
>looked through the Spruce catalog for hints as to which thread size would
>be the AN3, but am coming up at a loss. It seems like it must be obvious
>somehow, but I can't find it. (Incidentally, these torques for the Fine
>and Coarse Thread Series are given in "INCH-POUNDS" instead of
>foot-pounds, which I assume is a typo error---what do you think?)
>
>Soooo, anybody know what is the proper torque for a self-locking
>nylon-insert nut for an AN3 bolt?
>
>Thanks,
>Bob
My chart does not have the lock nuts under 9/16 listed seperatly like you say.
I use the chart for the regular nuts and add the difference of the drag of the
locking method.
You need to torque these to 20 - 25 inch lbs. not foot lbs.
You are putting 12 times too much force on them using foot lbs.
The skinny locknuts that are made for shear only forces on the
bolt or really light loads are to be torqued to 12-15 inch-pounds.
An an- bolt is 3/16 inches diameter. and 10-32 fine thread.
At these small torque values you may want to get a inch
lbs torque wrench. Got mine of ebay fairly cheap.
Jim Pollard
Merlin Ont
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