Quote:
Originally Posted by oldE
Hey Bugs! I appreciate your response. I noticed in one set of images there were small wing fences near the trailing edges of one of the EZs. Would those be to address a yaw situation? I didn't note them on other airframes in the series of images.
Thanks
Les
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No problemo there Les,
Trailing edge fences help with slow speed performance as do leading edge vortalons and in our case on our VariEZ, leading edge wing cuffs.
The trailing edge fences keep the air flow moving more over the ailerons which improves the effectiveness at slow speeds such as landing. These are modifications and some have done, and some not. TE fences is a must for us. Due to our wing design, I need all the added aileron authority I can muster since responsiveness can get mushy if your not on top of the numbers when landing. Starting at about the point where the engine cowling begins, the angle of the airflow over the wings begins to increase as the speed drops, essentially reducing the effectiveness of control input. The TE fences redirect the airflow to keep it inline and keeping authority.
Hope this makes sense.
Leading edge wing cuffs
If you want to see the starting procedures as designed by Burt Rutan, check out this video. Yes, it’s an hour long and shows methods of construction, however you can watch the first 2.5 minute to get the idea.
Cheers
Bugs
https://youtu.be/qtSndkKXP3c