CTE

[Amir Neshati]

100 lbs. is just a tiny bit over kill ;-)....you just have surpass the servo's torque a bit, really....I've used
40 lbs. and 20 lbs. coated fishing lines just because I had them around. The major thing to avoid
is chafing. As long as you don't tear the line by chafing it on the glass fuselage at the exit point, the 
servo wheel attachment, or the control surface attachment methods, any coated fishing line in the
 20ish lbs. range should be fine for  the pattern ships...

I like using eye bolts before the clevis, as they are rounded without any sharp edges where the 
cable loops back and will not cut the cable. And easy to adjust if needed.

Amir




  I see a reference to 40# Kevlar, which triggers a question. 
  What strength Kevlar is needed. The airplane pull-pull system I've seen state 100#. I've read you can use Spiderwire fishing Kevlar but the strongest I've seen in that is 65#.

  This may be a dumb question, but I'm attempting to setup elevator pull-pull for the 1st time & don't want to creat a problem with line that's too small.

  thanks Eddie
    ----- Original Message ----- 
    From: Amir Neshati 
    To: discussion at nsrca.org 
    Sent: Tuesday, November 25, 2003 2:18 PM
    Subject: Re: CTE





    I weighed a carbon pushrod once that was ready to install and weighed around 1.5 ounces and I believe the 
    40 lbs. coated fishing line stuff weighed only a few grams...Kevlar would probably weigh only a couple of grams.

    Have fun,
    Amir

    ----- Original Message -----
          From: Nat Penton
          To: discussion at nsrca.org
          Sent: Monday, November 24, 2003 7:24 PM
          Subject: CTE
           Gray what is the CTI for balsa ? I have carbon push rods / balsa fuse and my elev trim moves around considerably. I suppose it is because of humidity variation between the shop and outdoors ?? The pushrods are 50" long.      NatPenton   
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