Gear Stop Cable Failure

[swift1b]

Re: Gear Stop Cable Failure

Rob

Thank you for your help with my photos. As to why the engine quit...
After several meetings with the FAA and my mechanic the probable cause of the engine quitting was ice or sediment in the needle/seat of the carburetor. I had the carburetor rebuilt by Aircraft Fuel Specialists and they indicated a considerable amount of fine sediment was present.

I have attached the sketch show the incorrect routing of the cable. With that being said, any routing other than than shown in the sketch will in a probability lead to gear failure when the stop cables are needed due to overload or breaking of the bungees.

Thanks again...

bob p

[TimHicks]

Re: Gear Stop Cable Failure

Bob,
Thanks for posting this information here. The education that we're collectively getting from your experience is very benefical.
I never would have thought that the cable could have cut through the steel member like that.
I also had a bungee failure upon landing a few years ago. My safety cable did its job. So all I had to do was install new bungees.

[swift1b]

Re: Gear Stop Cable Failure

I have attached a sketch that I modified showing how the cables were routed on my TCraft. With the cables routed under the two small thinwalled tubes at the top (as shown) the cable will cut through them and the gear collapse. Had my cables been routed as per the sketch I probably would not have sustained any damage.
bob price

[swift1b]

Re: Gear Stop Cable Failure

Tim

Resending attachment.. showing improper cable routing as found on my TCraft

bob price

[shipljl]

Re: Gear Stop Cable Failure

I thought I would usurp this thread a bit with a parallel subject. I wanted to make new gear stop cables since mine are rusty and have a few strands broken. I'm including a couple of pictures of the old cables. A few questions:
1. Are these originals? They appear to be wrapped and soldered on the ends
2. What length should they be? If these are originals, that answers this question.
3. I'm concerned about using Nicopress fittings that will leave sharp cable strands poking out to attack the bungies.
4. How have you handled replacement of these cables?

thanks

[Dick Smith]

Re: Gear Stop Cable Failure

This link to a thread from the past may be of some help.

http://vb.taylorcraft.org/showthread.php?9508-Safety-stop-cables&p=73813&highlight=cable#post73813

Dick

[3Dreaming]

Re: Gear Stop Cable Failure

I thought I would usurp this thread a bit with a parallel subject. I wanted to make new gear stop cables since mine are rusty and have a few strands broken. I'm including a couple of pictures of the old cables. A few questions:
1. Are these originals? They appear to be wrapped and soldered on the ends
2. What length should they be? If these are originals, that answers this question.
3. I'm concerned about using Nicopress fittings that will leave sharp cable strands poking out to attack the bungies.
4. How have you handled replacement of these cables?

thanks

Wrapped and soldered would have been original. Pre war and post war cables are different lengths. If you do the Nicopress sleeve I would put something over it like a piece of heat shrink tubing to hide the sharp cable ends.

[Hal]

Re: Gear Stop Cable Failure

Ok, the pre-war and post-war are different lengths. I found these pictures on the other thread. Are the dimensions correct for the pre-war or post-war?
Thanks,
Hal

[TimHicks]

Re: Gear Stop Cable Failure

Those dimensions are within 1/4" of the cables that came off of my '46 BC-12D. My cables had NicoPress on them so they are not original.
But based on this, I'd say that the sketch above is probably for post-war (like mine).

[Robert Lees]

Re: Gear Stop Cable Failure

Remember that the loop at each end has to be big enough to slip over the "ears" of the stubs in the fuselage.

[Hank Jarrett]

Re: Gear Stop Cable Failure

And SMALL enough not to fall off! That is why the 1 1/8" post. Don't make the loops TOO big!
Hank

[shipljl]

Re: Gear Stop Cable Failure

The cable in the picture I posted above is almost exactly the length shown in the sketch (27 3/4 inch) and mine is a 41. If this isn't the right length I want to know before I cut the cable.
Also, the previously referenced thread said it should be 3/16 inch cable. My soldered cable is 1/4 inch. Which is correct?

[shipljl]

Re: Gear Stop Cable Failure

Sorry, I spoke too soon. My cable is 3/16 inch, not 1/4.