FDM FMX-4 DTFB version by FoamyDM (original by Barnaby Wainfan)

[FoamyDM]

I happen to be perusing homebuilt aircraft pages such as these and thought to myself this is a VERY simple, quickbuilding and interesting Aircraft worth making DTFB RC.
So I started off. and quickly got to these plans: (ALPHA PLAN Set)

There is a Peanut scale balsa Version. Highlighted here by Joshua Finn's video (J&H Aerospace)

Here is one flying :

BuildLog:
the link below is a link to the EAA chapter 292's Build of this plane. What I notice
http://www.hainesengineering.com/rhaines/aircraft/facetmobile.htm
5/17

5/19

Glide Test:

Maiden Flight:

Take-aways:

 

[FoamyDM]

This is stupid quick.

 

[FoamyDM]

I need a hot minute to get the swappable pod cradle set correctly

 

[FoamyDM]

Dry fitting the body top on

Looks like I have the swappable pods setup
The fit looks good, ready for glueing down.

I did a bedroom glide test and it did well but was fast.i want to try a front lawn filmed test next.

 

[FoamyDM]

http://www.facetmobile.com/
FMX-7:

https://www.facebook.com/video.php?v=2310391745713422

 

[Baron VonHelton]

So.......A bloated stealth fighter with 2 rudders?

 

[FoamyDM]

That is the v4 of it, yup. apparently it has very forgiving tendencies and allows generally high usable payload. (pilot weight). I suppose I should get back to it, huh.

 

[Baron VonHelton]

That is the v4 of it, yup. apparently it has very forgiving tendencies and allows generally high usable payload. (pilot weight). I suppose I should get back to it, huh.

LOL! Yes, I reckon.

 

[Matthewdupreez]

Yes please I'm interested in this odd un

 

[FoamyDM]

link to Joshua Finn's Peanut scale model flying in post #1 (visible below here)

 

[L Edge]

If you keep it light, you should be able to fly it in your front yard. It will fly real slow in a high alpha config. Mine is a delta version like yours where I adapted it to an EDF.

 

[FoamyDM]

Here is the glide test:

I will add it to post #1

@L Edge based on the glide, I can see it! It should be fun. It is a 24" L x 19" W.

I will be placing the servos on the bottom. Along with the battery hatch. This should be easy to get batteries in.

 

[L Edge]

Are you doing landing grear? If not, don't do servos on bottom, will tear out on landing if you hit an object.

 

[FoamyDM]

Are you doing landing grear? If not, don't do servos on bottom, will tear out on landing if you hit an object.

good point. Thank you for that.
I was planning on adding some pre built jobbers on there. I might 3d print some wheels though and use Landscaping wire.
While I get ready for the Maiden I may decide to get a FMX-7 versioni designed out.

 

[FoamyDM]

I just put the electronics in this model and setup a profile in the Tx.

I have to install rear landing gear.

 

[FoamyDM]

today. Finished up the landing gear. Then I took it out to the field and gave it it's maiden flight:

 

[lienmeat]

This is so cool. I just learned about the facetmobile a few months ago and was looking to see if anyone had built one about this size. Do you think without landing gear (weight) it would fly with a FT power pack A motor (1806 2280kv) with a 6x4.5 prop and a 850mah 3s battery?

I was thinking with a smaller battery, a smaller motor and prop might be enough, but I'd love to get your opinion before I try.

 

[FoamyDM]

It might be enough, but just barely. The F pack - likely. it is worth trying.
The build is incredibly simple.

 

[lienmeat]

Where is the CG on this thing? I'm getting close to having one ready to maiden.

 

[FoamyDM]

The cg in mine is Right in front of the vertical interal... Spar? where the pilot sits in the real one. but it may be more like 3/8" in front of it.

in most tricycle geared planes, the cg is a tire width in front of the rear main gear. in a tail dragger, it's the opposite.