Fire Extinguishers and Xmitter springs

[Wayne Galligan]

I like sweating....  makes my flying more manly.....aruuuughhh! It is kinda "Creepy" when your stick feels like its falling out.

So is this creep thing a long term thing then?
Should I go in for regular checkups?
Replace my gimbals on a regular schedule?
Or is major surgery due in the near future?

WG

  ----- Original Message ----- 
  From: Gray E Fowler 
  To: discussion at nsrca.org 
  Sent: Thursday, June 03, 2004 8:04 AM
  Subject: Re: Fire Extinguishers and Xmitter springs



  Wayne 

  How did all that sunlight UV get inside your transmitter? The plastic will only get brittle with time IF there is a plasticizer in it which in this case there is not...but what does happen is a problem called "creep"....(no offense). Creep is the "flowing" of the plastic when it is under a load, and those hooks are under a load 24/7 even worse when you have heavy duty springs. Eventually that hook will fail. 
  I flew Lances set up and hated those triple tight springs...seemed ridiculous to break a sweat to move the sticks.



  Gray Fowler
  Principal Chemical Engineer
  Composites Engineering 


       "Wayne Galligan" <wgalligan at goodsonacura.com> 
        Sent by: discussion-request at nsrca.org 
        06/03/2004 07:18 AM 
        Please respond to discussion 

               
                To:        <discussion at nsrca.org> 
                cc:         
                Subject:        Re: Fire Extinguishers and Xmitter springs 



  OHH yesss.... just had that happen this last weekend.  I lost the rudder spring during a stall turn.  Then I had to land in 20 mph crosswind.  Very touchy with no feeling on the stick.  Had the aileron ones go out too about one month ago.   I think it has more to do with the age of the unit. My 8UA is about 8yrs old.  Plastic gets brittle with age and especially if it is expose to UV(sunlight).  All thought these little parts are shielded from the sun somewhat  I am sure there is still some exposure when left to Mother Nature. 
  AND of course they seem to break at the most inconvenient time...like 4 days before a contest.  I guess that's better then during a good round in a contest. 
    
  Wayne G.. 
  ----- Original Message ----- 
  From: Lance Van Nostrand 
  To: discussion at nsrca.org 
  Sent: Wednesday, June 02, 2004 11:34 PM 
  Subject: Re: Fire Extinguishers and Xmitter springs 

  A comment about those new springs:  I've now seen 3 transmitters break the plastic hook that holds the spring to the gimbal.  On gimbal broke twice!! first time on the plastic hook and the second on the gimbal side. Those plastic parts are nit designed for the load of the heavy duty springs.  My transmitter was one of these.  I now believe that they are a nice idea but an impractical one. 
  Be warned and be ready to land with no spring center. 
  --Lance 
    
  ----- Original Message ----- 
  From: Pattrnflyr at aol.com 
  To: discussion at nsrca.org 
  Sent: Wednesday, June 02, 2004 2:25 PM 
  Subject: Fire Extinguishers and Xmitter springs 

  Since all this talk about Li-Poly's and such, I was wondering what type and size fire extinguisher you guys would recommend for your shop. 
    
  Second question.  I recently replaced my gimbal springs with the Radio South heavy duty springs.  The stock springs had grease on them.  Anybody know what type grease you should use on your transmitter springs? 
    
  Thanks, 
    
  Bruce 

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