Multiplex FunCub

I'm adding a new addition to the hanger that will replace what I have been using as a float plane. I've been taking my time assembling this, just working on it when the weather is the nastiest so there isn't much to show.

This is the Multiplex FunCub.



And with a paint job done and starting on the electronics.

 

Were the motor and ESC in the box?  What brand and specs to they have?

 

Here are the motor and esc. The esc is over kill for the motor amps needed but has pretty good voltage and amps on the bec and should be enough to operate the 7 micro servos, at least several at a time.

http://www.headsuprc.com/servlet/the-2064/Emax-GT2812-fdsh-10-Outrunner-Brushless/Detail
http://www.headsuprc.com/servlet/the-2496/Sky-Power--45A/Detail

 

Nice looking parts.  How many cells, what voltage, do you plan to use?

 

Three cell 2200mAh that I've had around for a long time.
The servos are, HS 55's for ailerons, 9 gram Tower Pro for flaps, HS 82MG for rudder/tail wheel, HS 65HB for elevator and a Futaba S3107 for a tow line release. No real reason behind my choices, other than every thing came out of my parts box except the Tower Pro servos.

 

The paint looks great. What do you paint your foam with? I've not had very good luck painting foam so far...

 

Thanks.
That's "Krylon Indoor/Outdoor Paint - Bauhaus Gold". Many lite coats and no ill effects to the foam.
The Elapor foam it's made of tolerates most paints but it can be pulled off pretty easily with tape.

I'm still working on it, doing a little work on the interior for a rear mount for floats before I glue the halves together. I'll have a few more photos soon. 

 

Sweet. I've never seen one look clean with yellow like that. Makes me really want to build one now.

 

Welcome to the forum brandonherring.
We're a pretty laid back group with a wide range of interests, as you have probably noticed.

 

After a couple mods I am ready finally to glue the halves together.
The photo shows the balsa/plywood mount for the rear attachment for floats. Just above that is plastic tubing to keep the RX wires out of the way and in their proper orientation.

 

Good job.  Nice clean work Bill.

 

I'm using the old floats off the retired float plane. They're a couple inches longer than stock Multiplex floats and slightly smaller around. I cut the CF tube and inserted a smaller diameter tube into the cut ends to get the wider stance I needed for this plane. Just sorting out how I'll attach them to the plane now.

 

I dun know there's something about a single engine high wing float plane I've always have enjoyed ...

Hey Bill how tough are those 'foamys' , can they take the hits?

 

Actually fairly tough wOOd and when you do break something they're pretty easily fixed. Even crushed foam from a bad hit can be expanded mostly back into shape with a dip in boiling water.
I'm still fiddling with the floats. The plane will set back a little further on the floats than shown in the photo and I'm embedding those plywood bits into the foam. Then the attachments, which need to be quick and easy but still hold tight. Still thinking about that.

 

Sound's better than 'balsa' ... I didn't know about the hot water expansion trick so ya taught be something

 

I've not tried it myself but from what I read it works pretty well. 

 

I'm not sure about the foam types that will expand in hot water either, other than the Elapore. I read that tip when trying to decide if this was the plane I wanted.

I would like to see the photos of your floats and mounts. I've not glued the plywood to the floats yet so I'm open most all options. 

 

Had a little setback on the floats. When I removed the stripes they took little bits of paint with them. The fresh yellow paint really did a job on the foam where it got under the original paint....so...had to clean up around the damaged area and spackle it in.  :
Still messing with that but I did get some mounts on them that should work pretty well.

I made some serve extensions to reach from the RX, which will be mounted inside the fuse and hard to reach, to just out side under the wing.

The extensions all plug into the servo housing made for 4 wires. Hopefully this will keep all the wire easier to get plugged in and tidy.

 

Almost done, once the filler is set and sealed over the damaged foam. Then a little more paint.
A photo of finished plane coming soon.