Today's Message Index:
----------------------
1. 08:11 AM - Re: Re: Rocket-List Digest: 1 Msgs - 03/24/03 (FLYSTEVE@aol.com)
2. 09:02 AM - Re: Prop torquing (Ron C)
3. 09:14 AM - Re: Prop torquing (Bob Japundza)
4. 09:48 AM - Re: Prop torquing (Wernerworld)
Message 1
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| Subject: | Re: Rocket-List Digest: 1 Msgs - 03/24/03 |
--> Rocket-List message posted by: FLYSTEVE@aol.com
If you have the wrench at 90 deg. to the torque wrench you don, t have to do
the math.
Stephen
Message 2
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--> Rocket-List message posted by: "Ron C" <ronc@metropolisdesign.com>
I don't think so. Try it.
-----Original Message-----
From: owner-rocket-list-server@matronics.com
[mailto:owner-rocket-list-server@matronics.com] On Behalf Of Scot
Stambaugh
Subject: RE: Rocket-List: Prop torquing
--> Rocket-List message posted by: Scot Stambaugh
--> <sstambaugh@qualcomm.com>
I think that if the Crow's Foot is on the torque wrench at a 90 degree
angle to the shaft of the wrench so that the center of the bolt would be
the same distance from the handle as the center of the square drive were
the socket would normally attach then the torque would be accurate. So
the
question is can you get the necessary clearance with the torque wrench
at a
90 to the Crow's Foot.
scot
At 02:03 PM 3/26/2003 -0700, Ron C wrote:
>--> Rocket-List message posted by: "Ron C" <ronc@metropolisdesign.com>
>
>Russ-
>
>I used a crowfoot endwrench on a regular Sears torque wrench. The crows
>foot wrench is the type that clicks onto a socket wrench- some might
>refer to them as offset end wrenches. I bought mine at Checker or
>Autozone in a six piece set for cheap. I am using a basic needle type
>sears torque wrench. These have small head on them that clears
>surrounding prop parts whereas my larger dial type torque wrench will
>not get into the hub close enough. Remember the extended effective
>length of the crows foot wrench on the torque wrench adds torque to the
>reading from the wrench. I figured it out once- I think it adds less
>than a pound of torque to the actual value being read.
>
>
>Ron Carter
>
>-----Original Message-----
>From: owner-rocket-list-server@matronics.com
>[mailto:owner-rocket-list-server@matronics.com] On Behalf Of Russ
>Werner
>To: rocket-list@matronics.com
>Subject: Rocket-List: Prop torquing
>
>
>--> Rocket-List message posted by: "Russ Werner" <russ@wernerworld.com>
>
>What are you guys using to torque the bolts on the prop? Is there a
>special, expensive tool that I have to have?!
>
>Russ
>
>
>direct advertising on the Matronics Forums.
>
>
direct advertising on the Matronics Forums.
Message 3
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--> Rocket-List message posted by: Bob Japundza <bjapundza@yahoo.com>
It is well-known that by turning the crows foot 90 degrees to the wrench that you
don't have to take into account the length of the arm of the crow's foot.
I questioned it at first too.
I cut the end off an old wrench and welded a socket to it so I could use it with
a click-type torque wrench. On you prop there should be a sticker from Hartzell
that indicates the prop bolt torque. I believe it is 60/ft lbs, but I can't
remember for certain.
Before you tighten the bolts to their final torque, be sure to run your safety
wire through the roll pins. Makes safetying the prop bolts much easier while
you can get to either side of the roll pins.
Bob Japundza, RV-6 flying, currently building an F1
Ron C <ronc@metropolisdesign.com> wrote:--> Rocket-List message posted by: "Ron
C"
I don't think so. Try it.
-----Original Message-----
From: owner-rocket-list-server@matronics.com
[mailto:owner-rocket-list-server@matronics.com] On Behalf Of Scot
Stambaugh
Subject: RE: Rocket-List: Prop torquing
--> Rocket-List message posted by: Scot Stambaugh
-->
I think that if the Crow's Foot is on the torque wrench at a 90 degree
angle to the shaft of the wrench so that the center of the bolt would be
the same distance from the handle as the center of the square drive were
the socket would normally attach then the torque would be accurate. So
the
question is can you get the necessary clearance with the torque wrench
at a
90 to the Crow's Foot.
scot
At 02:03 PM 3/26/2003 -0700, Ron C wrote:
>--> Rocket-List message posted by: "Ron C"
>
>Russ-
>
>I used a crowfoot endwrench on a regular Sears torque wrench. The crows
>foot wrench is the type that clicks onto a socket wrench- some might
>refer to them as offset end wrenches. I bought mine at Checker or
>Autozone in a six piece set for cheap. I am using a basic needle type
>sears torque wrench. These have small head on them that clears
>surrounding prop parts whereas my larger dial type torque wrench will
>not get into the hub close enough. Remember the extended effective
>length of the crows foot wrench on the torque wrench adds torque to the
>reading from the wrench. I figured it out once- I think it adds less
>than a pound of torque to the actual value being read.
>
>
>Ron Carter
>
>-----Original Message-----
>From: owner-rocket-list-server@matronics.com
>[mailto:owner-rocket-list-server@matronics.com] On Behalf Of Russ
>Werner
>To: rocket-list@matronics.com
>Subject: Rocket-List: Prop torquing
>
>
>--> Rocket-List message posted by: "Russ Werner"
>
>What are you guys using to torque the bolts on the prop? Is there a
>special, expensive tool that I have to have?!
>
>Russ
>
>
>direct advertising on the Matronics Forums.
>
>
direct advertising on the Matronics Forums.
---------------------------------
Message 4
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| Subject: | Re: Prop torquing |
--> Rocket-List message posted by: "Wernerworld" <russ@wernerworld.com>
Okay guys, thanks for all the suggestions. It seems that the torque wrench
is the proper way to do it but many are just using the "all they got" method
on the armstrong method too.
Don't forget the safety wire!
Russ
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