Paper Freeby conversion to hobby foam A radial powered

Malky

Member
I’ve flown a free paper aircraft designed by paperaircrafts.com called the…freeby. I use it in my avionics class to teach aerodynamics, C of G and to see who can follow instructions.
2CB294A2-3818-4FBF-8001-EAEBDA36FAE2.jpeg
I then made a model based on the plans on an A3 print to get a feel of the material and see how easy it is to work with.
E9100261-644C-4CB3-AF38-33C954A8DC30.jpeg
I needed to convert the triangle nose to the A Powerpack based on the P-51
B7937F8F-D14D-4230-8827-AA57ADDA946D.jpeg
And had plenty of trial and error until I went back to the theory of triangles.
FAFA183F-A3DF-4D08-9BA6-76C7761B62BA.jpeg
It’s a little bit F100 Supersaber but works.

I made a mock up
F11D6743-67C0-4E9E-98CC-3B287B099151.jpeg
And worked on the wing. Again, trying to convert a paper aircraft design into a foam aircraft using the mini P-51 as a guide for architecture and design.
02A12422-AC49-4040-B18B-B9FB89551888.jpeg 293C00DC-D6C4-4F3A-9555-4687A3C4D170.jpeg

So, I haven’t cut or constructed yet as I’ve got to this point and have gone on holiday. I live in New Zealand and it took a while to get my power pack delivered. Crazy times.
I’m also doing this project with a friend and we will make 2.
Will post more photos when I get back to Marlborough.
 

Malky

Member
Progress so far. My A power pack arrived from The States but my batteries and receivers are somewhere between Australia and New Zealand.
It's been a learning experience. Triangles leave less room for RC gear than square!

5mm foam is easy to work with.

I skipped dihedral which makes the wing easier to build but the proof will be in the flying.

20220112_163507.jpg
20220113_171341.jpg
20220113_192913.jpg
20220113_192921.jpg
20220113_193455.jpg
 

Malky

Member
273014166_2881620138804898_8019461343055653720_n.jpg

273038424_470726921411347_81810231301776731_n.jpg

273063935_374853241002482_6972506027177135656_n.jpg
272924801_927207491270271_4002752825758053668_n.jpg


Its pretty much done. C of G is 1 cm too far forward so I may find a bolt to glue to the tail.
Not flown yet, maybe next weekend.
 

ThatsALotOfPlanes

Active member
Looks like a sleek little pylon racer! Did you use DTFB or the Elmer stuff? Can't remember if you can get the real thing anywhere outside the US
 

Malky

Member
I had to google DTFB! I had a look at my stuff. I am not sure what you have in The States but this looks similar to what is used on the FT mini aircraft. I haven't tried bending curves into it but it does have the removable paper. Its about $9NZD per sheet. That would be about
5-6 $USD? It says made in Korea. Maybe it is the same stuff and DT imports it?
20220315_124428.jpg
20220315_124520.jpg
 

FlamingRCAirplanes

Elite member
I had to google DTFB! I had a look at my stuff. I am not sure what you have in The States but this looks similar to what is used on the FT mini aircraft. I haven't tried bending curves into it but it does have the removable paper. Its about $9NZD per sheet. That would be about
5-6 $USD? It says made in Korea. Maybe it is the same stuff and DT imports it?
View attachment 221648 View attachment 221649
How much does a sheet weight in grams?