Hello,

I am trying to create wings for a UAV project I am doing and have limited knowledge of airfoil design.  I have attached some renderings and line drawings of my design that is in progress and wanted to know if someone out there had some advice on if this would work or not.

Thanks for any help,

Will




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1) I would base the airfoil off of an existing airfoil. From the looks of your airfoil you will have a lot of lift at slow speeds, but also a ton of drag and large moment. There are many tools you can use to come up with the wing design (x-foil is a personal favorite) or you can do the sizing by hand since all of the equations are very simple and easy to find online.

2) You'll want to make the hinge line of your flaps straight.
For the sake of simple construction since you dont' have a lot of experience I would recommend the Clark-Y Airfoil

You can get some idea here

Also move your aileron further out to the tip of the wing and just give it a straight taper is good enough.

R
Ryan is right, the location of the ailerons is too far inboard (more suited to flaps) and the aileron taper is inefficient.

As your control surface moves, the outboard portion separates from the main wing and looses any authority at all and only induces more drag.

Most UAVs designs try for better loiter capability than heavy-lift-VTOL design (as represented by your very aggressive airfoil)
I recommend the WORTMANN FX 60-126
Attachments:
Thanks a ton for the input. The Clark-Y design looks like something that I should use. Is the Clark-Y design more suited for slow flying and simple maneuverability? Also, should I use elevators instead of ailerons? Im looking to do mostly loitering as it will hopefully be in the air for awhile and be easily flown so it will integrate with the autopilot easier.

What effect does the lower camber have? More lift but slower speed? The design I used was an existing airfoil and I just didnt know which airfoil characteristics affect which flying traits, so maybe a less aggressive shape will go a long way for my purpose
Also, Here is the fuselage Im working on. Still have alot of refining to do with the shape and also need to add the elevators. It will be lasercut out of some light material for the frame and then covered with a composite such as fiberglass or carbon fiber.

Nice looking rendering! What program are you using?
Thanks alot, I built it in Rhino and rendered in Keyshot2
Are you looking to just build a flying wing?

That changes everything!
No, Im looking to build the fuselage as well. A rendering of my design is below
Yes, but just a flying wing without horizontal stablizer right?
The model that is rendered is not totally finished, I still need to add the horizontal stabilizer and make the nose a bit more aerodynamic. You cant tell by the rendering but there is also a rudder on the vertical stabilizer

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