rtfm
Well-Known Member
Hi,
I'm busy choosing an optimum airfoil for my vertical tail. I need one which has been designed specifically to incorporate a rudder. In my search, I found the WORTMANN FX-L-142-25 airfoil. It has extremely low drag - much better than the NACA 0012 for example.
This is a symmetrical airfoil, which seems to have a slight "kink" or depression at about the 60% chord - and if I remember correctly, one of the books I've been reading (can't remember which) recommended this as a good way to go for surfaces which needed a hinged elevator/rudder.
<added later>
I have found other airfoils, all of which seem even better than the "traditional" NACA 0012 (etc) series. I've attached a screenshot of their polars.
Does anyone know either:
Duncan
I'm busy choosing an optimum airfoil for my vertical tail. I need one which has been designed specifically to incorporate a rudder. In my search, I found the WORTMANN FX-L-142-25 airfoil. It has extremely low drag - much better than the NACA 0012 for example.
This is a symmetrical airfoil, which seems to have a slight "kink" or depression at about the 60% chord - and if I remember correctly, one of the books I've been reading (can't remember which) recommended this as a good way to go for surfaces which needed a hinged elevator/rudder.
<added later>
I have found other airfoils, all of which seem even better than the "traditional" NACA 0012 (etc) series. I've attached a screenshot of their polars.
Does anyone know either:
- Are any of these a good airfoil for my v-tail or not
- If not, what other airfoil should I be looking at?
Duncan
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