It only says that the cables have not been subjected to the required testing. I doubt that they stretch every piece the comes off the line anyhow! AvWeb is always trying to incite something, especially against the FAA, and the New York times and the rest of the fools are always looking for an unapproved parts story. Is AvWeb suggesting that they should have made an AD affecting every airplane that has had cable installed in the past year? They would have been mad about that if the FAA had done it! The FAA can't win! If cable is made right then I would expect that there is really no doubt about the strength. If you look at the strengths that cables are rated for, it is so much more than what they are subjected to as to be an non-issue. Glen Ward -----Original Message----- From: Mi Vida Loca <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: Tuesday, June 20, 2000 7:24 PM Subject: Re: [COUPERS] FAA is here to insure safety once again
>Dick, >I think you are missing the point here, I actually have little concern that >the cables are not strong enough. What does concern me is that a large >percentage of GA aircraft have cable operated controls. When one breaks it >is not just a matter that the given control no longer works but that it is >now free to move in any direction and at any speed. In other words this >would be essentially the same as flutter. The concern here to me and >apparently the writer from AV web is that the FAA does not seem to identify >this as a lethal situation. Not too long back someone on this list lost the >cable to their trim tab and had a less than pleasant ride home. I'd like to >hear his opinion on how benign he feels it would have been if it had been >the elevator and not the trim tab. Tell you what,,, just as an experiment >why don't you try unhooking (to simulate a broken cable) one of the control >cables in your Coupe and do a high speed taxi test down the runway at 60 >mph. Come back tell us if you still feel a broken cable is as benign as you >and the FAA think it is. I suspect you will spend extra time doing the >laundry if you were to try it. But let us or have someone who is still able >to send an E-mail know the results of the experiment. It's the FAA's >thinking that a broken cable is insignificant, not the real issue of >strength of an uncertified that is going on here. Bottom line here is I >personally, and quite a few others out there do not feel that FAA is always >the best judge of safety. If you blindly believe in the FAA to protect you, >then you might want to invest in a plastic dashboard Jesus too. Oh BTW >good luck! >Dave > > >At 01:49 PM 6/20/00 -0700, you wrote: >>Well, to some extent that is true. In a Cessna, for example, the elevator, >>ailerons and rudder all operate from cable. The rudder and ailerons are >>virutally rendundant as are the elevator and trim. In other words, the >>failure of one of these cables does not immediately result in a forced >>landing or crash. I have used 1/8 cable to hold up radio towers up to 125 >>feet. My recollection is that it has a strength of 5000 lb. The reason for >>the use of such cable is not strength in my opinion, it is the multiplicity >>of filaments so it accommodates the bending with a minimum of fatigue and >>eventual breakage. Frankly, I would be perfectly comfortable with such >>cables. >>Dick >>-----Original Message----- >>From: Mi Vida Loca <[EMAIL PROTECTED]> >>To: Dick Chevalier <[EMAIL PROTECTED]> >>Date: Tuesday, June 20, 2000 2:16 PM >>Subject: Re: [COUPERS] FAA is here to insure safety once again >> >> >>>this is the real issue (reported in AVweb) >>> "the FAA told the New York Times, the agency does not believe that the >>>cables serve a "critical" function. The Times reported that the FAA, >>>"...believed that because pilots could continue flying the plane if a cable >>>broke, it was not a >>>crucial part." >> >> >>________________________________________________________________________ __ _ >_____ >>To unsubscribe from this list please send >mailto:[EMAIL PROTECTED] >>________________________________________________________________________ >>Start an Email List For Free at Topica. http://www.topica.com/register >> >> > >_________________________________________________________________________ __ _____ >To unsubscribe from this list please send mailto:[EMAIL PROTECTED] >________________________________________________________________________ >Start an Email List For Free at Topica. http://www.topica.com/register __________________________________________________________________________ ______ To unsubscribe from this list please send mailto:[EMAIL PROTECTED] ___________________________________________________________ T O P I C A The Email You Want. http://www.topica.com/t/16 Newsletters, Tips and Discussions on Your Favorite Topics
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