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Legal Control Yokes

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06 Apr 2024 13:51 #7 by Nate D'Anna
Replied by Nate D'Anna on topic Legal Control Yokes
Thanks Larry. Got it---Pretzel yokes--not kidneys. Pretzels is my preference anyway as they go better with beer rather than kidney beans. This is just one reason why I joined EOC---to learn everything about Ercoupes after having owned a Piper Cherokee 140, a Grumman AA1A and 3 Bonanzas through the years.
As a side note, I see you're a banjo player. I have a Gibson 5 string Mastertone that my dad bought for me in the 1960's. Beautiful instrument and used it on many gigs. Thanks again for the help.

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05 Apr 2024 21:55 #8 by Ronald Raty
Replied by Ronald Raty on topic Legal Control Yokes
Don't let record keeping keep you from becoming an Ercoupe owner. Legal is whatever someone with authority will sign off. Since you have access to an IA looking at potential Ercoupes, ask him what it would take to correct modifications that might technically make the plane unairworthy due to improper documentation. Every classic plane you look at will have a skeleton or two in the closet. It might be as simple as him filing a 337 form so he is comfortable signing your annual. If the yokes are from a Forney or Mooney, then legality should not be an issue since those planes were designed/manufactured under the same Type Certificate. It is just a matter of making sure they were installed correctly, and record keeping.
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05 Apr 2024 20:56 #9 by Brooks McNew
Replied by Brooks McNew on topic Legal Control Yokes
Larry and Super are correct.

The previous owner had installed a pair of Mooney yokes in my 415C - there was no 337 *but* he was a DAR so he basically signed of on whatever he felt like doing. However, it didn't have the shorter control shafts and were very uncomfortable to pull fully aft. Fortunately the old pretzel control wheels were in the parts bin so I switched back to original.
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05 Apr 2024 20:16 #10 by Super User
Replied by Super User on topic Legal Control Yokes
When Alon was formed, they obviously brought they Beech-style "rams-horn" yoke with them. I think it looks fine in my ALon. Not sure I'd like it in an earlier model.

But, you're spot on - there has to be some paperwork to modify the controls of the aircraft. I'm 99% sure that's a major modification.
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05 Apr 2024 20:13 #11 by Larry Snyder
Replied by Larry Snyder on topic Legal Control Yokes
I’m no A&P, but I’ve seen many Ercoupes with ram’s horn yokes. I think they require different shafts than the original pretzel yokes (please, not kidney). If someone makes the new shafts, they must be l legal one way of the other. I like the pretzel yokes. I’ve seen planes where they’re installed upside down. That would not be comfortable. Somehow ram’s horns just look wrong in an Ercoupe…

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05 Apr 2024 17:37 #12 by Nate D'Anna
Legal Control Yokes was created by Nate D'Anna
Hi. Have been flying for 53 years in most makes & models but 0 hours in Ercoupes.
In my quest to buy an Ercoupe, my IA has expressed concern that many of the Coupes I've considered do not have the standard kidney shaped control yokes but rather many varieties of different yokes.
His concern is that many of the sellers cannot produce the legal documentation/logbook entries (STC, Field Approval, 337 etc.) to confirm that the non-kidney shaped yokes as installed are legal. As a result, my question is, what are the legal requirements concerning nonstandard yokes especially since the approved kidney shaped yokes are available from Univair? Thanks for your responses to this newbie and it's great to be on board!    

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