Rudder cable placement help

[Wayne]

When I bought my airplane the fabric had already been removed and I have installed a new sock. Hine site is always 20 20. How do I now locate where the rudder cable exits?

Any help would be appreciated

[lktiller]

Wayne, do you have two of the little laser lights kids play with?
Mount one on the rudder control horn pointed toward the fuselage side. Tape the other at the last guide block inside the fuselage pointing backwards.
Adjust their angle until both dots meet through the fuselage side.
Cut the dot!

Doesn't matter if 1/2 inch off. The reinforcement patch will be bigger than that.

Somebody else here may have a simpler idea.

Are you working on it this Saturday? 27th. Gonna be a nice day. I might fly over for a short while.
Take measurements from mine.

[Wayne]

Rudder cable placement

I will be there working Larry. Thanks for the input. I do have to stop about noon to get ready for my grandson's b'day party.

I would be glad to meet you at the airport whenever you can get there.

[Hank Jarrett]

I hate to be a party pooper but the laser idea won't work. There are an infinite number of spots you can point the laser at from both sides. Works anywhere you can hit the fabric. You need to shine the laser from the rudder horn TO THE LAST INSIDE guide or from the last guide to the horn and that's kind of hard with the fabric in the way. The closest you are probably going to get is to measure off of another plane and make a very small hole to see how far off you are. Wish there was an easier way once the fabric is on but if there is, I haven't found it
Been there, done that, don't feel alone.
Hank

[lktiller]

Not a 'party pooper', Hank. You're SO right!. There's only one source and one target in a straight line.
I tried to write that with 'tongue-in-cheek' while looking for an excuse to get away from all those spring projects at home.

We will see how close we can get with measurements from my plane. I have one flying and one-non-flying covered fuselages and there is a third '38 model flying on the field.
We just need to pick a starting point for the measurements. (Triangulation)
Any other suggestions for double checking? Naturally we would like to make one and only one hole.

Larry

[Hank Jarrett]

Make the hole with a needle and string a piece of dental floss through between the horn and fairlead (oncew you are pretty sure you have the right spot from another plane). Pull the floss tight and see which side it pulls to. If it's too much, pull the thread through the fabric and pick a spot 1" towards the direction it was pulling and try again. Pretty soon you should be able to pul the floss tight and it won't pull on the fabric. Make your hole there and if you were careful you won't need to put a patch on the sewing holes.
Hank

[Ron Greene]

Rudder Cable

This is from CAPT Jon's web page:
Since you are using another aircraft as an example you could fabricate a jig like this that fits under the horizotal stabilizer.

Rudder Cable Jig
Have you ever wondered how you were going to locate those little holes on each side of the fuselage in your new fabric job for the rudder cables after you take off your old fabric? You could make a real mess of that perfect covering job if you put them in the wrong place! Well, here's a neat idea.......which should be done before the fabric is taken off (but could be done with a "temporary" small fabriced area). With the rudder cables installed and attached to the rudder, make a jig for each side that fits over the horizontal stabilizer fuselage attachment tube stubs marking the exact location of where the cables exit the fabric. Voila!! As they say, one picture is worth a thousand words, so here are two pics!

[Ron Greene]

rudder cable

Here is the second picture

[robbie]

rudder cables

If it's any help my 46 BC12D holes are located
24" from the backtail member,
6 3/4" up from the bottom.

[Wayne]

rudder cable placement

Thanks to each of you, Larry, Hank, Ron, and Robbie. As always you can count on this group for some ideas. I am hoping to fly this bird this summer so I am sure there will be more questions.

I posted a message about a windshield and didn't get a reply. Do any of you have any words of wisdom on that subject?

Thanks Again!

[Robert Lees]

Robbie,

Is that from the respective tube centrelines, or the "outside" edge of each tube?

Rob

[robbie]

Thats from the out side edge of the tubing