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Posted by vincent123 | Yesterday @ 06:48 AM | 756 Views
Webbing ... boring job .... nevertheless ... has to be done !
Wing is pretty stiff, torsional stiffness will end up fine after sheeting.

Test mounted the wing .. so far so good.
Posted by vincent123 | Jan 24, 2016 @ 12:26 PM | 1,318 Views
First wing ready to glue.
Posted by vincent123 | Jan 17, 2016 @ 02:15 AM | 1,310 Views
Figured it out.
The gear hatch is fixed fixed with 2screws, on the inside of the hull.

The battery hatch with 4 magnets.
Posted by vincent123 | Jan 15, 2016 @ 01:39 PM | 1,400 Views
Hatch and nose done.
Still to figure out how to fix the hatch to reach the battery
Posted by vincent123 | Jan 10, 2016 @ 11:59 AM | 848 Views
Battery and landing gear hatch cut out.
Posted by vincent123 | Jan 03, 2016 @ 04:10 AM | 1,476 Views
Fuselage outer planking ready.
Next I ll cut the hatches for battery and landing gear.
Posted by vincent123 | Jan 01, 2016 @ 02:39 PM | 3,209 Views
Feet cut and sanded.
Posted by vincent123 | Dec 30, 2015 @ 06:16 AM | 4,856 Views
Time to cut his feet!
Posted by vincent123 | Dec 29, 2015 @ 02:18 AM | 2,317 Views
Top side finished planking.
Made myself a cup holder for the airframe to reach to bottom end.
Posted by vincent123 | Dec 27, 2015 @ 08:35 AM | 2,117 Views
Left side finished and looks pretty good.
For a first time that I plank a fuselage, I m realy happy it turns out fine!
Posted by vincent123 | Dec 27, 2015 @ 03:36 AM | 2,333 Views
Some progress...
Posted by vincent123 | Dec 24, 2015 @ 07:14 AM | 1,800 Views
View from the inside.
EDF fits OK in the duct.

I ll plank the fuselage while the EDF sits there, so that all is nicely aligned and glued.
Then I ll cut a hatch to get the EDF out again in order to surface finish the duct.

Still not sure how to finish the surface. Just with a colorless sealer?
Or covering it with oracover?
Or painting it?

The fuselage itself will be covered, I think, to save weight..

Posted by vincent123 | Dec 22, 2015 @ 03:58 PM | 2,137 Views
Duct oulet tube kind of ready.
Still the EDF hatch to cut out.
Posted by vincent123 | Dec 21, 2015 @ 09:40 AM | 1,680 Views
Planks out of Rhino work fine, after sanding the surface looks smooth and flush. Till now, I did not need much sanding to make the planks fit to eachother.

It s a messy process nevertheless (there goes my clean build approach): glue everywhere, switching between CA and classic UHU hart glue. The latter is nice, since is leaves no color differences and sands perfect.

Cutting balsa with a router is an experience. I learned that balsa wood lacks structure to be cut by a router without proper support. This forced me to alter the routing process, so that the planks are still connected with little 2mm pieces (just as a kit would be delivered).

Planking is doable, load off my chest!

Posted by vincent123 | Dec 20, 2015 @ 04:26 AM | 1,867 Views
Planking the inlet duct is not easy, the high curvature doesn t help here.

No idea the result is any good, anxious to finish the duct and start sanding.

The precut planks seem to work OK, but then again, I got no reference.

Posted by vincent123 | Dec 19, 2015 @ 08:41 AM | 1,707 Views
Almost time for planking the fuselage.

First the duct will be planked.
In Rhino, I managed to quickly design planks, which I can route out, i'm curious. First time I'll plank something ..
Posted by vincent123 | Dec 19, 2015 @ 05:40 AM | 1,750 Views
Perfomance testing an EDF is not something I like to do. A lot of power, high resolutions, screaming noise...

First test soon resulted in a broken fan, it came loose at around 800gram push, my bad. I didn't tighten the bolt enough.

The new fan arrived yesterday, finally I could retest my setup.

It pretty resulted in what I hoped for:
2kg at 68A and 1280Watt at 23V
2,1kg at 74A and 1400Watt at 21V (almost empty batery)

Looking good so far!

Posted by vincent123 | Dec 13, 2015 @ 08:31 AM | 1,830 Views
EDF installed in the frame.
An EDF hatch is incorporated in the design.
But, I'm thinking to plank the fuselage without cutting the hatch opening, as long as it is not needed. So, I'll be burying the EDF !

The bolt is cemented with epoxy.

Before planking,; let me first check the performance, EDF testbench just being designed. Jippy now router it !

Posted by vincent123 | Dec 06, 2015 @ 04:01 PM | 1,947 Views
A lot of firsts for me with this build.
First time I use a cnc machine for routing the formers and so on.
I ll try to route also the planks for the fuselage...

First time I make a round fuselage..

First time I will plank a fuselage.

First time I use CA glue (instead of Uhu hart), cause all pieces fit as a glove, there is no gap to apply glue...

First time I make an EDF flying wing (never flew an EDF whatsoever, even my MIG15 is till waiting for its maiden).

Nevertheless, so far so good.
Also the carbon formers came out strong (at a steep cost).

Next step is edf test installation and wiring.

Posted by vincent123 | Dec 06, 2015 @ 02:59 AM | 2,188 Views
OK, happy me, I started with the build, Finally!

The Stepcraft machine is pretty good, accuracy is fine, deviation is about 0,1mm (backlash), which is OK for my purposes.

Final weight Auw will be about 1,7kg.
I m looking for an EDF push of around 1,8-2kg, should be OK?

More pictures soon, whoppy!