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Bill,

 

I have heard of a Coupe being given a new “E” airworthiness certificate after doing upgrades that included the split elevator.

 

On the other hand, I’ve been told with NO doubt, by an FAA staffer from the airworthiness department (conversation at Oshkosh) that an aircraft can ONLY be really changed in its model number if that’s explicitly allowed in the type certificate.  The change from C or CD to be a D is explicitly spelled out in A-787.  No other model changes are listed.

 

By the FAA person’s statement, glen is simply flying a D with a different elevator approved (I hope) by a form 337.  I personally think that the split elevator is a no-downside improvement.  The slipstream goes through the split.

 

That’s why, when Glen did a full power stall, he got nice Coupe-like behavior.  When I was doing my high-power stall testing, I chickened out at 100 rpm less than full power cause it was getting too squirrelly (with my D and 9° up travel).

 

Glen, to check up-travel, go to

http://edburkhead.com/Ercoupe/pre-purchase.html and scroll down to section 4 about rigging.

 

Ed Burkhead

http://edburkhead.com/

ed -at- edburkheadQQQ.com   (change -at- and remove the QQQ)

 

I know you believe you understand what you think I said, but I am not sure if  you realize that what you heard is not what I meant.  (Jim, AKA Midnight Plowboy)

 

 

 

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