For all friends of flying planks I designed a special version sized between the
Speedy Red Mini Wing https://www.thingiverse.com/thing:1117576 and the
Red Duck https://www.thingiverse.com/thing:407766
Moreover I used a different airfoil. It now comes with a wingspan of 1000 mm and the total weight is 870 grams.
Like in the “Mini Wing”, carbon rods (8mm now) pass all the way through, providing extraordinary
stability. These rods are so stiff and fit in so tightly, you don’t need to glue anything.
This makes changing a part very easy, in case it is broken or you want it in another color.
I havn’t had a chance myself to maiden it yet. But Dave already got it airborne. Watch
his success here:
Now I maiden it as well:
Recommended Print Settings
The wings are designed to print using 0.5 mm width, 0.3 mm height, 3 bottom and 3 top
layers, but one perimeter only.
Should you print thinner walls, the perimeter of the upper side will not stick well enough
to the perimeter of the inner stiffening construction.
If you apply thicker walls, the perimeters will not come out continuously in one
The layers must build up as if you were printing in spiral vase mode. Only then you get a
smooth surface on the upper side.
If unsatisfied with the results, try out 0.49 or 0.48 width in your slices settings. It
depends whether you use Cura, Slic3r, S3D or what yo have. I suggest you experiment with
some tests before printing the whole thing.
The second point is: Should you print lesser layer heights, the inner stiffening
construction will not connect well to the top and bottom layers. You will suffer a gap in
All wing parts: layer height =0,3mm, width =0.5 mm
wing: 1 perimeter, 3 bottom layers, 3 top layers, hollow
wing servo: 3 bottom layers, 3 top layers, hollow
elevon 170: 7 (!) bottom layers, spiral vase mode
elevon 167: 3 bottom layers, spiral vase mode
elevon joint: no bottom layer, spiral vase mode
fuselage parts: layer height =0,2mm, width =0.52 mm
fuselage front: 3 perimeters, 7 bottom layers, 3 top layers, 80% infill
fuselage middle: 2 perimeters, 1 bottom layer, 1 top layer, hollow
fuselage back: 2 perimeters, 3 bottom layers, 3 top layers, 40% infill
fuselage interface: 2 perimeters, width =0.4mm, no bottom/top layer, hollow
fin: 5 bottom layers, layer height =0,3mm, width =0.5mm, spiral vase mode
fin cap: 2 perimeters, 3 bottom layers, 3 top layers, layer height =0.2mm, width =0.4mm,
wing span: 1000 mm
wing chord: 200 mm
aerodynamic center: 35 mm (12%)
overall weight: 816 g
wing weight complet: 460 g
fuselage weight complet 356 g
fin weight 12 g
wing area: 20.0 dm²
wing loading: 41 g/dm²
longitudinal stability (Thies) STFs:
motor: Propdrive 28-36 1000KV
static thrust: 950 g (3S Lipo)
battery: Turnigy 1200 mAh 3S 40~50C Lipo
motor camber: tilted -4 degrees
side pull: none
propeller: Aeronaut CAM Aeronaut Carbon Classic 10 x 6"