Thought I would share one of my recent projects. I am designing an ultra stick style UAV platform designed to carry a 3 axis mini 3D pro brushless gimbal for smooth fpv video while the aicraft carries out an autonomous mission.
The construction uses lasercut balsa and lightply so it will be extremely cheap and easy to make, while the wing is hotwire cut out of eps and then skinned with a sheet of 1mm balsa for stiffness.
I designed the wing using a constant airfoil section (NACA2414) with washout towards the tip so wing produces an elliptical lift distribution which will greatly improve stall characteristics.
The wing is designed to fly at 16m/s (around 60km/h) if the airframe is kept at 2kg. so things need to be kept light.
Let me know what you think!
Comments
Just a suggestion for future Blog Posts, put the primary picture at very top or no more than one sentence down so it will show up on the main Blog page.
Your tapered wing is a great concept, but as Vladimir says, straight chord is actually much better especially for a plane designed to fly relatively slowly as this one is.
The additional lift counts a lot more than wing tip turbulence. (Which could still be mitigated with vortex generators or spoilers if it was worth while. (probably not).
(And it's a lot easier to build).
Weight is issue...Believe me :))
That thing is awesome!! I was thinking of giving autonomous landings a go and was worried that a built up wing like that might take some damage if landings don't go smoothly. Maybe I will build two sets of wings, one being like this once the aircraft is tuned nicely
And...When you think about weight - build a construction, not a foam and balsa. :)
Hey there, thanks for the advice! I enjoyed the challenge of designing my own wing, but I think I might regret it when I it comes to actually building it.
Much better to use NAСA2412 and not think about taking an elliptical distribution. I have built 6 or 7 or similar aircraft, from 1.4 to 4 meters span :)
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