I've always wanted to build a hybrid model... taking advantage of the quick build, light nature of foam, and the strenght of wood where necessary. Also my old highly modified Kadet Sr. was one of my all time flying planes. I gave it to a flying buddy in about 2002 when I switched to electric only. The thing was so darned fuel soaked, and the cost of larger electrics was WAY out of my legue. It was about 10 years old at that time. As far as I know, it's still flying.
So why not build a hybrid Kadet Sr. This one has a bolt on tail ( I always seem to knock them off/damage them on big planes) a bomb door, ailerons, and flaps.
Attached is the 3D drawing. Show hidden objects to get a better idea of the construction of the fuse.
Sure could use some help with the hatch area. I cut the parts out from the flattened drawing, but it doesn't even come close to fitting..
Also working on the wing drawing.. Actually it's all done, just want to figure out how to draw the sheeting.
Any help there would be greatly appreciated.
THANKS in advance
Dave Attached files 3DView.skp (1.9 MB)Â

 

I worked on the wing sheeting some. Still needs to be unfolded. Open in SU and copy then open your drawing and past in place.


Cheers
E-T Attached files Paste in place.skp (4.5 MB)Â

 

Oh man, that looks like it is coming along nice and delicious!

 

Hay ET. THANKS!!! for doing that. I looked at it real quick, and there are a million and one surfaces. Did you use the lofting plug in?

I can figure out how to get the surface on so to speak. It's just when I unfold and cut, it doesn't fit. For example the short curved piece behind the hatch, and the hatch. I have it built until the point where I am putting on that short piece (circled in red). It is tapered to smaller in front. The curves match up just fine. Problem is it is 5/16" too short at the front and 6/16 (3/8) too short at the back. I haven't taken measurements on the hatch cut, but it is defiantly too short also, but not by the same amount.

That's the part I'm having a hard time with. For the wing I want to pocket places to mount hard points for the hinges, but as they will take a whole sheet each (4 total) , I don't want to cut twice.
THANKS again
Dave Attached files

 

If you wanted to be ontop of the formers it would have to be 1/4 inch higher . I made this for in between them. Make sure you have view hidden gemotory on. You can even trace them so you know where they are. You might have to put a bevel on the back edge with sand paper for the slant fwd.

I left some on for fold lines maybe 30-40%





Cheers
E-T Attached files 3DView hatch.skp (2 MB)Â

 

After looking at it again when I got home. I never unhid all........so I took a nother stab at it.

This should work better.



I like to put the folds down for the srinking of the foam. small discussion about that here.

Cheers
E-T Attached files 3D hatch.skp (1.9 MB)Â

 

THANKS again E-T... After seeing the thread again that you referenced , I see I need to do the OUTSIDE of the 3D object to unfold. I'll cut your hatch to see how it fits.

Here is my first attempt that was too short. This was using the INSIDE as the piece to unfold. I just measured, and added to a new part. The new one fit like a glove

Also some pics of the construction...

Wood assembly will fit in the nose and add some much needed strength to the nose for the motor/batteries, and for the landing gear mount. Attached files

 

This is fantastic! I am so impressed with the wood cuts they really look nice.
Shes going together quick now
Thanks for sharing
Mark and Trish

 

Been working on this one a bit... Getting harder though as the weather has been nice in the evenings, and I'd rather be outside.

Attached files

 

I like that fuse jig. The build is looking good!

 

Looking great Tim
Have you decided on a paint scheme yet?
Mark and Trish
p.s. Is that the Flyers I see winning in the background