I shouldn't think it'd make much difference.  But if it were a scale Bv-141, I'd recommend hinging the left half.

You gonna have a working aft propeller?

I'd think if it was on the inboard side the plane would tend to roll that way, which would give slack lines.  Outboard side would make it roll out and tighten the lines if this theory is correct.

Outboard makes sense.  The heavy load is up elevator.  Outboard up roles the airplane out.

Thanks all!

For a level flight only model, the elevator should go on the outboard side.  If you are stunting, it probably doesn't matter as it will foul you up either on insides or outsides whichever you do. 

HOWEVER!  I had a Brodak Pee Wee with a v-tail and only elevator on one side, and it had no problems whatsoever. Not a precision stunter, of course, but would do the basic maneuvers.  I don't even recall which of the v tails had the elevator.

On a vee tail like that, yaw and roll will be opposed to each other, so it probably stunts better than a flat elevator with only half span would.  That is, up elevator rolls to the right, but yaws left and vice-versa.  The two effects kind of balance.  With a negative vee, you could get into real trouble as both yaw and roll would reinforce each other if you used the outboard only elevator.   

Drag certainly has an effect, and one I hadn't considered, but the elevator is close to the centerline and way behind the CG, so I think the yaw due to deflection will overcome the yaw due to drag.

Reality trumps theory every time, so someone should build something and test it!   

On vee tail put half elevator on inboard side only.   I speak from experience.   

When Oba StClair put lines on a free-flight.  He had working rudder and ailerons too!   

Read Charles Mackey's book, it is a great history of CL. (Available through PAMPA)   

Sorry if we hijacked your thread!  "IT" happens!