TinyWing! [Updated Video]

by cacomistle | August 26, 2014 | (9) Posted in Projects

Who doesn’t like a flying wings? They are robust, efficient and fun! I built this 600mm (24.6 inches) wing to fight wind, annoy birds, and buzzing around.

First I will give credit to a bunch of people:

FPVTrond. I like how he build the wings. They significantly reduced the build time of the wings in general. This tiny wing is based entirely on his They significantly reduced the build time of the wings in general. This tiny wing is based entirely on his FPV49 V1.

FlightTest. Your VersaWing is my first build, and it’s very easy to fly. This plane is also inspired by your FT Delta Wing.

Richard Kline. KF airfoil!

ExperimentalAirlines. You must learn from him how to laminate a foam board with packing tape!

[I have already maidened it. It flew like a dart! For got my GoPro to make a video though. Will upload after next flight!]

Here is how it compares to the size of Taranis. And it fits nicely in my 'gear bag'.


Wing span: 600mm
Weight (wing): 140g
Weight (all-up): 200g
CG: 120mm from nose
Motor: 1811-2900kv
Servo: 3.7g - 5g (I used this)
ESC: Turnigy Plush 6A
Battery: 800-1000mAh, 2s-3s
Flight time: 7-10mins

I fixed Mobius cam by the side of a 2s 800mah lipo. CG right on spot.

One reason you should love a wing - it requires so few to fly! On the right I used an old servo from a crashed MiniSwift.

This tiny motor weights as less as 10g. Yet with a 5043 prop, it produces 210g thrust at 3s.

I couldn’t find a way to bend a right sized metal plate, and drill it to make a motor mount. So I 3D-printed one.

How the motor mount looks like. You can get one of this from here. Just put decent amount of hot glue to mount it.

Almost all control horn from HobbyKing requires you to put at least 2 screws through it. It adds weight that is too significant for a small wing as this. So just take a gift card, cut it, bend it, drill it. Bang! You have a perfect light and strong control horn. Featuring Starbucks Mermaid. ;)

A close-up on the KFm-2 wing foil. And one word about the 3-layered foam pad that support the motor mount - cut two strips of gift card, glue them in-between the 3 layer of foam board, it would survive almost any crash!

You can see also a tiny part of carbon fiber strip that supports the whole wing. Personally I would think for such a small wing, you won’t need this spar if you cut each layer in one piece (I glued two halves together to save foam.), and have the layers glued properly.

Next step? FPV it!

Refer to the plans below if you want to build one!

Note: In the 2nd drawing, accross the centeral line the number is 38.40mm. You can round it up to 40mm with no problem.

Inserting a carbon spar (green line) makes it difficult to create dihedral, but you won't need the dihedral because as long as the wing is balanced right on the CG spot, it will fly very nicely. Dihedral stops you from making perfect roles in the air too.

This is the way to go if you want to save some foam! Btw, I used 3mm paperlaminated foam board.


vontugboat on December 14, 2014
Built one, still have to get the electronics mounted. Using a different motor and battery to avoid buying more :) Totally easy build, can't wait to fly it!

Motor: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=71612
Battery (3S): http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=58532
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vontugboat on December 24, 2014
I printed a motor mount for my motor (has 3 mounting holes, not 4) and posted the file online for anyone who wants to print one. Linked back to this page and gave credit to Cacomistle for such a fun aircraft! Keep up the great work, man!

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cacomistle on April 15, 2015
Excellent work @vontugboat! Sorry I didn't see your request. Maybe there's a problem with my account's notification. :(
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Bellows on November 26, 2014
One last question now that you have flown it awhile, I see the motor is rated for 7.4 Volts (2S). Is it holding up using 3S batteries?
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cacomistle on December 2, 2014
Hi Bruce,
Yes 3S is not a problem with my setup. I actually went ahead using 3S 1000mAh batteries for some of my fights. It can vertical very easily. But I don't do much aerobatics, so my ESC was not ever burned.
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vontugboat on December 13, 2014
Caco, can you post the .stl file for the motor mount for those of us who have 3D printers? :) Please? :) :)
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raydar on November 24, 2014
Thank you for updating with video, that was worth a thousand words of flight description!
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cacomistle on November 25, 2014
Thanks man! Have fun flying!
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Bellows on November 26, 2014
WOW, very nice build. I want to build one. Is there any dihedral or is it flat? Why on the middle drawing in the motor mount section is one dimension 38 on the left and 40 on the right?
Thanks for showing us this,
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cacomistle on December 2, 2014
It's actually 38.4mm ;D But it doesn't matter if you round it up to 40mm.
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flip_side on November 27, 2014
There is a dot between 38.40 hidden in the vertical line ;) I was wondering about that too
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cacomistle on December 2, 2014
Hi! 38.40 is the width of the motor mount base. Check the above pictures, it's the part where the ESC was velcroed on.
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LetsFlyRC on November 25, 2014
This plane looks like it flies really well. I will have to build one. Thanks for the plans, and flight video to go along with your experience. A lot of scratch builds that come in the articles don't have a flight video, so we don't know how they flew. Great job.
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cacomistle on December 2, 2014
Thanks man! Go build it! :D
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ohitstarik on November 23, 2014
Nice build! You really went all out with the control linkages.
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cacomistle on November 25, 2014
Haha I would need more starbucks mermaids. ;)
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NathanStephenisboss on August 7, 2015
Great job I just ordered a versa wing so i will be trying out wings for the first time they look awesome. Especially this one :)
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cuwid on December 4, 2016
Hi cacomistle,
i try to build one of this, based on your design. i use this part:
Motor : Turnigy 1811-2900kv
ESC : Turnigy Plush 6A
Servo : HXT500
Prop : 5043
Battery : Zippy 800mAh 2S
Don't know the total weight (no cam), and i put the battery and receiver around the CG. On this config, my TinyWing won't fly. I think not enough thrust, so it won't go for vertical take off. But on your video, it fly nicely. I don't know what's wrong. If you don't mind, please give advice. I just a beginner, and would learn much from the expert
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TinyWing! [Updated Video]