Joes Fuentes wrote:

>>Someone had a whole Horz piece with elevator to sell me, though it 
>>occurred
to me when I went to look at the lane in more detail that I'm not familiar
with how the horz is attached?<<

Yes, the horizontal stabilizer spars are normally epoxied to  plywood 
bulkheads that also capture the vertical stabilizer spars.  It will be a 
pain to detach, and even worse will be that you'll have to get creative on 
how to get the new elevator past the aft vertical stab spar to install it. 
Unless you basically destroy the vertical stab, you'll have to make the 
elevator in two pieces and then epoxy or bolt them together to install the 
halves (less than optimal).  Not very palatable in my book, but given that 
your elevator looks like it's broken in half anyway, you are already in that 
boat.

I was going to point you to http://www.n56ml.com/misc.html (about a fourth 
of the way down) to show how I fastened my horizontal stab to the fuselage, 
rather than wood, so that's a viable method of reattaching a new h/s if you 
butcher up the spruce in the fuselage, but you've still got the elevator 
problem.

I've fretted over a lot of similar problems while building my plane, and 
what I usually found to work best is simply get out the reciprocating saw 
and cut away all offending material and start over. Leave the vertical stab 
spars in place, but everything horizontal ought to go. You could leave the 
leading edge of the vertical stab there to keep from having to reform it, 
then build a new h/s and elevator assembly and slip it into the v/s spar 
slot, fasten with aluminum angle like I did mine (or wood, if you were 
careful and didn't damage it during the surgery), reglass the vertical stab, 
and you're done.  Sounds like a real ordeal, but it has more appeal to me 
than trying to scab something on to the split h/s spar, and you're going to 
have to put a new elevator in there anyway.

While you're at it, you could make the horizontal stab/elevator a little 
longer and help with the pitch sensitivity of the KR2.  See 
http://www.n56ml.com/kht.html for an overview on how to build that assembly, 
and using the "new" NACA 63009 airfoil to improve effectiveness slightly 
(templates link on that page).  Also see http://www.n56ml.com/kvs.html for a 
lot of details on what's under the skin of the vertical stab along with some 
fabrication and integration photos and narrative..

That's what I'd do with that mess.  Just get the Sawzall out and try not to 
hurt anything you're going to keep.  I've found that a beer first helps ease 
the pain.

You're welcome to perform this operation some other way and prove me wrong, 
however...

Mark Langford
ML at N56ML.com
website at http://www.N56ML.com
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