ORIGINAL: UStik
Yeah, that wing-fuse crossing makes for a nasty diffusor. The fillets may be necessary due to lower aspect ratio than the Zlin trainers have, so bigger AOAs. Might have to do with spinning as well (blanketing).
The Z-50 has symmetrical, good-natured NACA 0018 tapered to 0012, good for a strong wing. Together with the 0.8 planform taper the airfoil taper makes for a total 0.5 taper ratio - good for snaps. Obviously, the 1 degree dihedral is sufficient for the low wing position. Did you notice that both wing and stab have a decent positive incidence angle?
You mean the Z-50 M with the Czech inline engine (called Minor) and the bigger rudder. As far as i know, the stab is the same as on the L (Lycoming) versions. I wonder why you had trouble with the stab, but maybe it was due to the struts. The original is said to have a weak spot where the tail meets the fuse, kind of a structural bottleneck.
Unfortunately, I never flew one, only Z-142, so my knowledge is second-hand.
Thanks for the reply- I always confused the L and M- 50's My drawings were supposedly accurate and the M stab was larger. likely an error. In a model - that tail setup is awkward to make as a very light unit.
as for incidence - my drawings showed a lot of wing incidence -but no figures were given
All of those ZLINS, were great full scale aerobats but compared to other ligher designs with more power -they were quickly made obsolete.
years before - the Bucker bipes were considered the std for judging aerobatics and other planes which could do difficult stuffusually power maneuvers scored higher - It wasn't long before everyone went for the most powerful, lightest setup.
I still have one of the 1992TOC Buckers I designed -flown by three entrants that year-and later scaled up and flown by another flier
great fliers but power hogs.