Foam Wonder by SP0NZ

[speedy7385]

@FlyingTyger Thanks for the reminder that hot glue is not my only option. I took your route with the wing. Hot glue on the spars and Elmer's clear on the fold scores. I don't usually have the patience to make these builds multi day projects, but I thought I'd give it a try this time.

Wing drying before final assembly:
View attachment 229045

And the fuse mocked up, not glued yet:

View attachment 229046

Next question: How to tape reinforce the firewall?

I use his standard firewall, more contact area to the side of the foam board.
https://forum.flitetest.com/index.php?resources/standard-swappable-firewall.294/

 

[luvmy40]

Day 2:

So, I finished gluing the H Stab down and looked down to se the rear fuse former lying on the floor. Doh! Oh well, it feels darn sturdy without it!

I just need to install the elevator servo and motor, then do the linkages.

I just glued the battery tray in from the bottom. The straps I have won't fit through the slots. I'll just add a strip of velcro to hold the battery and receiver.

 

[Mitchmoo5000]

Everything cut out….. now I have to figure out how to get the electronics for the twin motor installed… 🤔

 

[luvmy40]

Finished!

 

[Mitchmoo5000]

Couple photos Of the build process and test fitting the motor mounts! The Foam Wonder looks sweet as a twin motor!

 

[Spitfire76]

Doing a dry fit of the fuse doublers. Is the 3d printed battery tray in the correct position ?

 

[SP0NZ]

Doing a dry fit of the fuse doublers. Is the 3d printed battery tray in the correct position ?

It appears to be, yes.

 

[Spitfire76]

It appears to be, yes.

Thanks, I wasn't sure as I didn't see the corresponding strap holes in the foam battery tray part but I can of course easily cut them out. BTW love that battery hatch design.

 

[SP0NZ]

Thanks, I wasn't sure as I didn't see the corresponding strap holes in the foam battery tray part but I can of course easily cut them out. BTW love that battery hatch design.

The strap holes are in the plate so that you can glue in the strap with the plate (permanently attached). If you want to strap thru the foam you could add slots in the foam piece for that.

 

[SP0NZ]

I have update the links on the first post to include all 5 plan sets on the Resources page. Over the next few weeks I plan on documenting a full build thread/guide. Have a WONDERful day.

 

[JeepyJayhawk]

Couple photos Of the build process and test fitting the motor mounts! The Foam Wonder looks sweet as a twin motor! View attachment 229224 View attachment 229225 View attachment 229226

Where did you find those motor pods? I like them!

 

[Mitchmoo5000]

Where did you find those motor pods? I like them!

https://www.thingiverse.com/thing:2929666

 

[chobson303]

First, Thanks everyone here for adding photos, it helped me get started build this plane. I've been working on a different way to add and remove wings. I thought this would be a great plane to try out this idea. I've used rubber bands on removable wings, but rubber bands stretch and rot so I'm always change the bands. Using Bamboo Skewers you don't have this problems. I'll let you know how she flies. Any other ideas would be helpful.

 

[Michael9865]

First, Thanks everyone here for adding photos, it helped me get started build this plane. I've been working on a different way to add and remove wings. I thought this would be a great plane to try out this idea. I've used rubber bands on removable wings, but rubber bands stretch and rot so I'm always change the bands. Using Bamboo Skewers you don't have this problems. I'll let you know how she flies. Any other ideas would be helpful.

Looks nice. Did you add any gift card or wooden reinforcements to prevent the skewer holes from ripping out or becoming loose?

 

[chobson303]

I didn't think of adding gift cards. The fuselage is double wall so I don't think I need them there. I guess I could put them on the wing section. Thanks.

Looks nice. Did you add any gift card or wooden reinforcements to prevent the skewer holes from ripping out or becoming loose?

 

[chobson303]

Added Landing gear for the fun of it. I had a very success Maiden flight. Video will be posted soon. I used 960kv DJI brushless motor with a 10" prop I had laying around doing nothing.

 

[SP0NZ]

Added Landing gear for the fun of it. I had a very success Maiden flight. Video will be posted soon. I used 960kv DJI brushless motor with a 10" prop I had laying around doing nothing.

View attachment 231441

View attachment 231440

Nice mods. Thanks for sharing.

 

[Kiax]

I built the German version and added rudders. I will paint it before a maiden.

 

[chobson303]

I built the German version and added rudders. I will paint it before a maiden.

Nice mod. I might just try adding rudders too.

 

[Spitfire76]

I built and maiden mine back in September/October and really love the design.

• Symmetrical wing so great for aerobatics and combat.
• Enclosed battery compartment.
• Very robust construction.
• Community available free plans.

More recently I took it to my club field yesterday and it flew just great although I must admit its a rather fast plane for my piloting skills. I did install the Aura 5 Lite which helps me get out of trouble but I didn't make the best belly landing on our runway and the firewall is now a little loose but nothing some fresh hot glue won't fix. I plan on configuring flapperons on the Aura to slow it down on landing.