Tri Gear Yaw Stability

Discussion for builders, pilots, owners, and those interested in building or owning a Sonex.

Re: Tri Gear Yaw Stability

Postby daleandee » Thu Feb 01, 2018 11:30 pm

Onex107 wrote:My theory is the gap was killing the air flow on the right side of the rudder and letting the tail wag that direction. I can't prove anything but the tail looks better and it stays in line better. I also closed the gaps on the elevators and saw a change in the trim setting, telling me that the same thing was happening there.


Can't say how any of that would effect the Onex but I remember a number of years ago John Davis (founder of ASA) did the same thing on his Jabiru 3300 tail wheel Sonex. I asked if he noticed any performance change or handling differences. He told me that there was none he could tell. I believe he used clear Lexan in his experiments.

FWIW, I've never had anyone ask about the offset rudder but I myself was curious about it the first time I seen it ...

Dale Williams
N319WF @ 6J2
Myunn - "daughter of Cleanex"
120 HP - 3.0 Corvair
Tail Wheel - Center Stick
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