a.f.rupp(at)att.net
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 Posted: Sun Apr 19, 2009 12:08 pm Post subject: Control cable tension |
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All, for what its worth. (.02)
The date on my A&P is 6/14/47 and I have earned my living with it ever since, and Air Force before that. From J-3 to 767. Having done my share of control cable changes and checks I would say if you have to check tension between annuals something was not done properly.
If you have fairleads, as we do on the XL, and have galvanized cables and your cable direction change is less than five degrees and you have stretched the cable after making it, it will not need adjustment between annual inspections. If you have pulleys it will last longer. If your A&P does not check every inch of the cable during an annual for fraying breakege, pulley or fairlead wear you better get a new A&P. (Or yourself)
A good way to check and stretch your cable after you have made it is with a fish scale and a come along. This checks the strength and stretch.
When you check your tension cycle your controls through several throws to make sure there is not resistance on the balance or control cable. There should be no slop between control stick and control movement..
Incidently they would not give me a date for certification check.
Fly by the numbers and I think it is a good airplane as is but I expect aileron balance weights and a bobweight will be called out. Neither is a big deal to install but the engineering has to be good or we are digging a deeper hole.
Be glad there is tension between the NSTB and the FAA. Everybody in the production and flying of aircraft has an agenda abd we need balance.
Al Rupp
Lake Placid, NY
CH601 XL 6-6765 Corvair
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-------------- Original message from Juan Vega 2005(at)earthlink.net>: --------------
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all planes with cables are regularly tensioned. ASk you local A&P.
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