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Old Oct 12, 2014, 03:17 AM
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Joined Jun 2013
40 Posts
Build Log
Tiny Wing Build

Who doesnít 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.

Richard Kline. KF airfoil!

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


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Description:

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

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 or 1000mAh, 2s-3s
Flight time: 7-10mins

I fixed Mobius cam by the side of a 2s 800mah lipo. CG right on spot.
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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.
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This tiny motor weights as less as 10g. Yet with a 5043 prop, it produces 210g thrust at 3s.
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I couldnít find a way to bend a right-sized metal plate, and drill it to make a motor mount. So I 3D-printed one.
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Description: A look of the 3d-printed motor mount

How the motor mount looks like. You can get one of this from here. Just put decent amount of hot glue to mount it.
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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.
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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!
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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 wonít 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!
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Refer to the plans below if you want to build one! (The green line is where you insert a wing spar)
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This is the way to go if you want to save some foam! Btw, I used 3mm paper-laminated foam board.
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Description: This plan saves you a lot of foam. But you have to use carbon-fiber wing spar (green line).
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Old Oct 12, 2014, 04:45 AM
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Joined Jun 2013
40 Posts
Video here:
TinyWing Showcase (3 min 54 sec)
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Old Oct 12, 2014, 09:42 AM
Using foam in moderation
newguy2012's Avatar
United States, IL, Aviston
Joined Sep 2012
668 Posts
Looks great!
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Old Oct 12, 2014, 12:40 PM
yank and bank!!
Joined May 2013
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Quote:
Originally Posted by cacomistle View Post
Who doesnít like a flying wings?

Truthfully, me.... that said, nice job on yours.
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Old Oct 13, 2014, 01:37 AM
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United States, CA, Sacramento
Joined Feb 2010
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so can i build this with the foamboard as is with the paper still on?
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Old Oct 13, 2014, 04:29 PM
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Quote:
Originally Posted by carl holtz View Post
so can i build this with the foamboard as is with the paper still on?
Yes Carl. I never peel off the paper when using this kind of foam board. But the kind of foam board I used has very-hard-to-peel-off paper. So it's easier to leave it on.
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Old Oct 13, 2014, 05:37 PM
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United States, CA, Sacramento
Joined Feb 2010
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i have been using elmers board for some builds but it seems to heavy so i got dollar tree foam board. did u find it necessary to use the packing tape afterwards? also what did u use to glue the airfoils down with? thanks car
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Old Oct 15, 2014, 01:50 AM
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Same IKEA "gear bag" here.
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Old Oct 16, 2014, 10:49 PM
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Quote:
Originally Posted by carl holtz View Post
i have been using elmers board for some builds but it seems to heavy so i got dollar tree foam board. did u find it necessary to use the packing tape afterwards? also what did u use to glue the airfoils down with? thanks car
Hi I did laminated the wing with some packing tape. For the leading edge of the wing I used wide electric tape, and I used hot glue for the layers and the fins.
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Old Oct 17, 2014, 12:04 PM
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Canada
Joined Nov 2000
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Curious about those servos fitted.
I ask because the ones I bought (experimentally) were Junk as delivered.
Prebroken due to inept factory assembly, then once I patched them, they proved sloooww and imprecise in use
Too slow/sloppy for My SEMF combat wing to be flown with any precision.
Yours prove to be any better?

Nice wing though :-)
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Old Oct 19, 2014, 11:08 AM
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Quote:
Originally Posted by Bare View Post
Curious about those servos fitted.
I ask because the ones I bought (experimentally) were Junk as delivered.
Prebroken due to inept factory assembly, then once I patched them, they proved sloooww and imprecise in use
Too slow/sloppy for My SEMF combat wing to be flown with any precision.
Yours prove to be any better?

Nice wing though :-)
I have got two of those servos, initially planned to be used in a pan/tilt mechanism. One of the servos came with a tiny crack, but both worked fine. They are not as flimsy as the black stock mini swift servos, which were widely used in many smaller hobbyking RTFs and PNFs. On this wing both worked fine, though the black servo was making some constant noise even when the stick wasn't moved.
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