Bother .
Youve got a fairly wide Stab. chord .
Ive run 3/32 incidance on 4 in chord , which is a degree . If im not mistaken . Same as 2 m.m.
on Airfoild Stab , Nearly Always use a bit with vertcal seperation of centrelines . Avoids the old
elevators set flat on bottom face trick .
Flown a few clockwise circulateing A/C , one on Saturday ! .
Being a Aerobatic floatplane , its to keep the lines tight on takeoff .
It walks OUTWARD .
Line tension is more even . But we all know that .
Cant see its other than mirror image to yours .
Fin / Rudder offset less needed . Rudder / Tourque counter rather than cumulative .
so think issues seperate to that .
Theres reasons some of us have dusty models .
A mixture of kerosene, clay powder, and DayGlo™ pigment is applied to the model surface with the wind off. When the wind is turned on it causes the kerosene to evaporate, leaving streaks of clay powder in the form of the flow pattern.
Advantages : Easiest method to setup and apply. Provides lasting flow pattern on the model for photos when the wind is off. Clearly shows flow pattern; shows flow separation well.
Old Hillbillies have been known to know the aerodynamic characteristics of their vehicals , from the airflow patterns from the dirt roads in the damp leaveing trails & traces on the bodywork .
Aiflow peculiarities at limits of things .
Site ( Its on winglets , in fact . )
http://fluidsengineering.asmedigitalcollection.asme.org/article.aspx?articleid=1438747&journalid=122Drivle on Downwash .
http://www.aerospaceweb.org/question/conspiracy/q0274.shtmllong & short of it ; dusting the rear fuse with say Blue Builders stringline Chalk Powder , will let you see the inviable tracks . If it sticks a bit .
Thanks for putting the picture on . Even if its not a pusher .
Disadvantages : Cannot vary model position during flow visualization. Model must be a dark color, preferably flat black, for contrasting the powder against the model surface. Pressure taps must be protected to prevent clogging.