Next, its time to install the tailfeathers.  
First cutout the elevator and hor. stab as dimensioned here:  Cut the external dimensions first.  



Once you have the external shape cut.  Draw the  two  balance tabs, and the hinge line.  Do not cut the hinge past the balance tabs. The hinge line stops at the balance tabs.  Next, cut the balance tabs out, make 2 cuts for each tab  as close to each other
as you can get.  Then cut the hinge line between the two balance tabs.  

Once you get the elevator halves hinged, you'll need to install a torque rod between the two halves.  Due to coro being quite flexible, i use a piece of 1/8" music wire to make my torque rod out of.  
Cut out a second flute for the hinge line, one will be covered by the torque rod, the other will be the hinge.  


Here is the torque rod i made.  As you can see, its quite large, it helps to stiffen up the large elevator surfaces as well as connect them, so don't skimp on it.  
Once you bend it into shape, center it on the hinge line, and mark the spots for it to poke into the flutes.
Sharpening both ends of the wire up really makes this easier.  After its marked, i push one side in, and twist the wire side to side, kind of like its a drill bit, until i get it all the way seated.  Then i remove it, and do the same for the other side.  
Then i remove it again, and install both sides at the same time.  
Here's the torque rod installed.

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