Thanks to everyone of you, ballpark figures are close enough for me. And indeed, I meant the whole tail, so stabilizer and elevator. The point with momentum coefficient sounds very interesting, since I heard a couple of times about conventional RC planes generating lift at the rear end yet flying stable... IŽll try to get mental access to that ;-) But as on airliners I usually see the horizontal empennage with a profile "upside down" I assume that they do produce a reasonable amount of downforce.
Thanks again!
