CTE

[wgalligan]

And I must say the results where nothing short of spectacular.  Lance lost his up pull line to a near mid air with Ron Barr's wing tip slicing his down pull line. He had to nurse this thing in from about 200 feet up while it was inverted.   After he realized it wasn't radio failure or interference he had to pull back to idle and let the plane settle down slowly. He could have done the same thing the happened to me at the same contest the year before (I crashed,  I lost my up pull line and on final the elevators started to flutter when the plane picked up too much speed.).  Lance finally got the plane to settle slowly in a large circle till he got about 50 feet off the ground.  He let it settle killing the engine and it floated in over the grass to a perfect two point (canopy and rudder) landing and a round of cheers from the gallery.  Only damage was a slight crushing of the c.f. canopy in one small spot that was repaired easily with a little c/a.  A repair of the pull line with some help from others that happen to have some pull cable and Lance was back in the air to complete his round.  Ron Barr didn't realize he had midaired Lance's plane till after he landed and noticed half of his wingtip was missing.  A very close call for both and some great flying by Lance to save his airplane.

Wayne G.
  ----- Original Message ----- 
  From: Lance Van Nostrand 
  To: discussion at nsrca.org 
  Sent: Thursday, November 27, 2003 8:36 PM
  Subject: Re: CTE


  Ron's right, Eddie.  40# is enough.  You have to keep in mind that if another plane passes by you at close range and its wings catch your pull pull cables, you want that cable to break, not pull your airplane apart.  Keith is also right about using different cables for each side (wish I'd done that!).  
     This sounds ridiculous, but it's happened to me!!
  --Lance

    ----- Original Message ----- 
    From: Ron Van Putte 
    To: discussion at nsrca.org 
    Sent: Tuesday, November 25, 2003 4:18 PM
    Subject: Re: CTE



    On Nov 25, 2003, at 3:42 PM, W. Eddie Batchelor wrote:


      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.
       



    I use nylon-covered steel fishing leader. I normally use 40# and I've never used stronger than 60#.

    Ron Van Putte


      ----- 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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