Full fuse one sheet ugly stik

[jpot1]

Well I was inspired by ViperTech's one sheet 40" thread, built it, flew it, and wanted to make further tweaks (http://forum.flitetest.com/showthre...40-inch-wingspan-1-sheet-of-foam-board-OH-YES!). I recently saw another post asking for an FT designed ugly stik. The two concepts clicked in my mind and hence the one sheet ugly stik was born. I am following ViperTech with a flat wing with kfm2 but am changing things up with a center section and then the two wing halves attached.



Started cutting, more pictures to follow. The sketch on the foam are the basic dimensions, I am then tailoring it to be more ugly stik-ish by angling the elevator and rounding corners. I will add the scallop cuts as well. Using an old pill container for the curved radius.



More to follow...

 

[ViperTech]

I am watching this one!

 

[jpot1]

I am watching this one!

ViperTech - video won't play?

 

[jpot1]

Build went quickly. Started with the fuse using standard FT methods. Remove the foam and B fold for the fuse sides. I added a piece of paint stick if I decide to add landing gear later.



I use a shortened power pod - basically the normal size one cut after the first set of tabs. Since there is really no place to put the tabs on this build I added a doubler to the top hatch and will use BBQ skewers for mounting of the pod.



Took the wing portion, 5" chord, which is the full width of a sheet of DTFB and cut it in half. Added the middle section of the wing, taped on one side and then a bead of hot glue. At 2.5" from the edge I did a 50% score cut with tape on the outside. Double bevel wider than normal and the slowly folded over to create the kfm2.



Hot glue down the bevel and also on the back of the kfm panel and I used a scrap piece of wood to fold over and hold everything down.



Used a roll of packing tape to make a template for the scalloped curve and then cut that out of the wing and elevator.

 

[jpot1]

Servos mounted. Elevator servo is in the fuse. I use dental flossers cut down for control horns. Wing dry fit to see how it looked together...not bad, definitely not scale.

 

[ViperTech]

Looking very good! Hope you can get a video of it in flight!

OH try the video again, I had it set to private should be public now.

 

[commandosqueak]

Looking good! Is that out of one piece of FB?

 

[jpot1]

Looking good! Is that out of one piece of FB?

Yep, one sheet of DTFB.

 

[commandosqueak]

Yep, one sheet of DTFB.

Im impressed, I have four sheets sat behind me. I might just make a non flying version of a plane to practice my scratch building skills.

 

[jpot1]

Added the aileron servos and attached the wing. Went ahead and added the smallest landing gear I own. Cut a hatch to mount the battery. Should balance nicely with a 1300 3s basically right at the cg- starting at 1.5" back from the LE of the wing.

 

[jpot1]

Sadly the maiden did not go well. I knew my motor / battery combo was a bit heavy but during a turn when my wings ended up in a v shape it was all over. Vipertech what motor/battery combo were you using?

 

[ViperTech]

I am using an older motor from Heads UP RC. It is a 400 slow fly motor.

Power Up 400 Slofly Specifications:Weight = 1.8 ounces (52 grams)
Diameter = 1.1 inch (28 mm)
Motor length = 1.1 inch (28 mm)
Bearing: 3.17mm x 8mm x 4mm
Shaft = 1/8 inch x 0.4 inch (3.17mm x 10 mm)
Voltage = 7.2 - 13.0
Current = maximum of 12 amps for 30 seconds
KV = 930
​

I run a 1300 or 1500 3s battery

I use a 9 x 4.7 slowfly prop.

Sadly they don't make that motor any more but with that low kv you can run a big prop and have plenty of power.

Did you put a spar in?

If you don't have a spar that's long enough you can use several bbq skewers overlapped on the ends by a couple inches.

 

[jpot1]

No spar on mine. Will definitely need one if I rebuild.