Re: Drag/Anti-Drag Wires

[james chybicki]

'Hi All

During the inspection of our wings, we read a passage in the Structual Repair Manual 01-115CA-3 page 21 Item 9 d. "Rigging of Drag and Anti-Drag Wires reads: The Following rigging tensions, as determined by a tensiometer, are recomended for drag and anti-drag wires:
First Bay from Butt
anti-drag wire--------82 pounds
drag wire-------------62 pounds
Second Bay from Butt
anti-drag wire--------62 pounds
drag wire-------------82 pounds
Third Bay from Butt
anti-drag wire--------32 pounds
drag wire-------------32 pounds
Fourth Bay from Butt
anti-drag wire--------22 pounds
drag wire-------------22 pounds

Although the above tensions are recomended, a variation of two punds less will be satisfactory.

Here is my question: HOW do you verify these tensions? Is there a special tool that can be used desided a cable tensionometer?

Any help will be greatly appreciated!
Jim Chybicki
N2FM UC-61K 43-14964/HB690'

[Frank]

'This is interesting as I have the same problem but as I have plenty of other tasks I put the tensions on the'Back Burner' for the time being.
However I did some research and found these guys

http://www.radialengine.com/index.html

They make Flying wire tensionmeters (as stocked by A/C Spruce) which have much higher tensions than our drag wires. I called them and explained the requirement. They could Calibrate a 'One off' for $250.00 provided we could give them the wire dimentions which would be easy. I did not follow up immediately as 'Funds' were low and There was a lot to keep me busy in the meanwhile.

I would be interested in a share of such a 'One task' tool if anyone else would join in unless there is already one in existance that could be rented - Anybody got one?

Frank Cox
G-BCBL S/N 43-15025 Argus (UK)

--- In fairchildclub@yahoogroups.com, james chybicki wrote:
>
> Hi All
>
> During the inspection of our wings, we read a passage in the Structual Repair Manual 01-115CA-3 page 21 Item 9 d. "Rigging of Drag and Anti-Drag Wires reads: The Following rigging tensions, as determined by a tensiometer, are recomended for drag and anti-drag wires:
> First Bay from Butt
> anti-drag wire--------82 pounds
> drag wire-------------62 pounds
> Second Bay from Butt
> anti-drag wire--------62 pounds
> drag wire-------------82 pounds
> Third Bay from Butt
> anti-drag wire--------32 pounds
> drag wire-------------32 pounds
> Fourth Bay from Butt
> anti-drag wire--------22 pounds
> drag wire-------------22 pounds
>
> Although the above tensions are recomended, a variation of two punds less will be satisfactory.
>
> Here is my question: HOW do you verify these tensions? Is there a special tool that can be used desided a cable tensionometer?
>
> Any help will be greatly appreciated!
> Jim Chybicki
> N2FM UC-61K 43-14964/HB690
>

'