1/12th Scale Edf Concorde
#1
Thread Starter

Would a model of this scale and calibre being a edf model be allowed in this section of the site?
Length 17 Feet
Wingspan 7 Feet
Power: 4 x 90MM Freewing edfs with 1750KV motors
Expected weight: 25lbs-27lbs
Scale features: Lights, drooping nose with retractable visor, operating thrust reverser's, wheel brakes
Landing gear: Electric retracts with scratch built or modified from commercially available struts.
I started to work on this model 2 years ago, time went so fast!, it feels like i started it 6 months ago!. Model is being built from original factory drawings from Angelo French in France. Fuselage was scanned into 3d cad program and was made into 3d model n then into pdf files, I then made my own plans for it. Used foamcore as main base of the fuselage structure by making templates first and then cutting parts into sections. Wings are built from the original drawings with changes to thickness of the wing root ribs, other then that its from the original drawings.
Wing structure is built up from 3/32" balsa sheets, there will be spars that will be copulated with CF to take loads on the 3 main hard points. Trailing edge spars and 2 spars that will pick up nacelles will be made from 1/8" lite plywood. Few ribs and spars had to be generated as they were lacking on the drawing version i got. No big deal.
I do plan on making molds of this model post it's maiden flight and then make and sell short kits in future.
"I can't upload any pictures as every night i get these stupid "500 Internal server error." when i try to upload them, ill try later"
Length 17 Feet
Wingspan 7 Feet
Power: 4 x 90MM Freewing edfs with 1750KV motors
Expected weight: 25lbs-27lbs
Scale features: Lights, drooping nose with retractable visor, operating thrust reverser's, wheel brakes
Landing gear: Electric retracts with scratch built or modified from commercially available struts.
I started to work on this model 2 years ago, time went so fast!, it feels like i started it 6 months ago!. Model is being built from original factory drawings from Angelo French in France. Fuselage was scanned into 3d cad program and was made into 3d model n then into pdf files, I then made my own plans for it. Used foamcore as main base of the fuselage structure by making templates first and then cutting parts into sections. Wings are built from the original drawings with changes to thickness of the wing root ribs, other then that its from the original drawings.
Wing structure is built up from 3/32" balsa sheets, there will be spars that will be copulated with CF to take loads on the 3 main hard points. Trailing edge spars and 2 spars that will pick up nacelles will be made from 1/8" lite plywood. Few ribs and spars had to be generated as they were lacking on the drawing version i got. No big deal.
I do plan on making molds of this model post it's maiden flight and then make and sell short kits in future.
"I can't upload any pictures as every night i get these stupid "500 Internal server error." when i try to upload them, ill try later"
#5
Thread Starter

[b]Left wing's build commenced tonight!...[/b]
Started building the left wing, for this wing i have used 1/8" lite plywood for wing's root rib. I want to see how this ply rib
will hold in comparison to 3/32" balsa rib on the right wing. If this lite ply served the purpose, then i will make another ply rib to replace root rib of right wing. I will be making lightening holes in the ribs of both inboard wings, i'm sure once these holes are made, wing's weight will reduce significantly yet "Zero" compromise of the strength of the structure.
#7
Thread Starter

Left wing is now dry assembled structurally..
About 1-3/4hr ago left wing's dry assembly got completed. I started at 530pm and by 7pm is had notched made on all spars and root wing rib. Then i had another car modeler over to talk about rc aircraft towing tug i'm going to make by modifying SCX-10 Hancho crawler truck, so by 820pm i was back building the wing. I don't know how time went by then, when i was done assembling this wing it was 2am!
I had few issues with interlocking notches and couple of spar's alignment was off that took some time to fix, it's all done now and wing has taken it's shape.
Tomorrow i'll get 2 2x4s about 9ft in length, clamp both root wing ribs to them and then will do all the alignment of wing droops and twist properly as how it's suppose to be. I'm also going to add spar support stems on all the spars so they all stay at right positions off the flat table's surface. I'm also planning to make stub wing out of balsa and ply but i'm considering adding lite ply cross beams through the fuselage's belly area where wings are to be mounted on it's sides and then attach the wings to the cross beams.
OR
Add 3 aluminium wing tubes at strategic load bearing points in the inner wing's structure, it also might be good ides to add wing tubes through fuselage instead of the cross beams and then join wings to the fuselage.
AGAIN SITE's PICTURE UPLOADING IS GIVING ERRORS!!!, WHEN WILL WE GET BACK OUR SITE SMOOTH RUNNING!!!
About 1-3/4hr ago left wing's dry assembly got completed. I started at 530pm and by 7pm is had notched made on all spars and root wing rib. Then i had another car modeler over to talk about rc aircraft towing tug i'm going to make by modifying SCX-10 Hancho crawler truck, so by 820pm i was back building the wing. I don't know how time went by then, when i was done assembling this wing it was 2am!
I had few issues with interlocking notches and couple of spar's alignment was off that took some time to fix, it's all done now and wing has taken it's shape.
Tomorrow i'll get 2 2x4s about 9ft in length, clamp both root wing ribs to them and then will do all the alignment of wing droops and twist properly as how it's suppose to be. I'm also going to add spar support stems on all the spars so they all stay at right positions off the flat table's surface. I'm also planning to make stub wing out of balsa and ply but i'm considering adding lite ply cross beams through the fuselage's belly area where wings are to be mounted on it's sides and then attach the wings to the cross beams.
OR
Add 3 aluminium wing tubes at strategic load bearing points in the inner wing's structure, it also might be good ides to add wing tubes through fuselage instead of the cross beams and then join wings to the fuselage.
AGAIN SITE's PICTURE UPLOADING IS GIVING ERRORS!!!, WHEN WILL WE GET BACK OUR SITE SMOOTH RUNNING!!!
#8
Thread Starter

Lets try now, its morning time....lol
Site's picture uploading is MESSED UPP!!!!!, ANYONE AMONG ADMINS OR MODERATORS LISTENING!!!!!
"Server Error
500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed."
Site's picture uploading is MESSED UPP!!!!!, ANYONE AMONG ADMINS OR MODERATORS LISTENING!!!!!
"Server Error
500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed."
#11
Thread Starter

It looks like there is next to nill interest in EDF Concorde model that i'm building, so therefore i will not post more on this thread.
#12
Banned
Joined: Apr 2012
Posts: 346
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From: , , UNITED KINGDOM
Yes there is interest. Many people just look rather than comment. I think this is a very good project and would ask you to continue to post.
#15

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Joined: Jun 2004
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From: Sailing in the Eastern Caribbean
On behalf of RCU I apologise for the pic loading problem. The webmaster is aware of this and other problems and things are improving.
BTW GREAT project. Not just another Chinese ARF!
BTW GREAT project. Not just another Chinese ARF!
#18
Thread Starter

OK guys accepted and i will continue to do build in here but all i ask, that just don't view it, make comment, ask questions, basically if you don't post how will i know ur guys are liking it or want it here or not...I hope you see my point of view.
#19
Thread Starter

Fibreglass wing skin tests....
I'm taking a different route to skin these wings, this time i'll be skinning them with my own self made fibreglass sheeting. Couple years ago i learned this technique how to make fibreglass sheets and now i will use it on this model. (Flaps on my S Constellation are also made from these sheets with wood and carbon fibre spars and fibreglass ribs...)
Since i have Concorde's Aerodynamic 3 view loft drawings, i will make 2 panels per each side for top and bottom of the wing, one panel here that i tested it on different parts of the wing to see it's flexibility to conform around this wing's droops and twists, worked really well. This piece is 2 layer made from laminating two 4oz fibreglass weave cloth pieces together with Pacer's Z-poxy laminating resin.
Presently not sure what glue i will use to stick these panels on tops of ribs and spars but by when that time will come, i'm sure i will figure that out too.
I'm taking a different route to skin these wings, this time i'll be skinning them with my own self made fibreglass sheeting. Couple years ago i learned this technique how to make fibreglass sheets and now i will use it on this model. (Flaps on my S Constellation are also made from these sheets with wood and carbon fibre spars and fibreglass ribs...)
Since i have Concorde's Aerodynamic 3 view loft drawings, i will make 2 panels per each side for top and bottom of the wing, one panel here that i tested it on different parts of the wing to see it's flexibility to conform around this wing's droops and twists, worked really well. This piece is 2 layer made from laminating two 4oz fibreglass weave cloth pieces together with Pacer's Z-poxy laminating resin.
Presently not sure what glue i will use to stick these panels on tops of ribs and spars but by when that time will come, i'm sure i will figure that out too.
#21
Thread Starter

ORIGINAL: TimWatson
Is that fiberglass sheeting similar to Pro Skin ?
Is that fiberglass sheeting similar to Pro Skin ?
#25
Thread Starter

ORIGINAL: invertmast
I hope you use something other than pacer finishing resin for the actual wing skins, like a real laminating resin that is designed for structural bonds
I hope you use something other than pacer finishing resin for the actual wing skins, like a real laminating resin that is designed for structural bonds



