Scratchbuilt Scale Fokker Eindecker E.III
11-12-2017, 08:23 AM
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Scratchbuilt Scale Fokker Eindecker E.III
Hello guys...
First of all, sorry for my eventual gramar mistakes, english is not my first language, so please be kind guys...
Well, I'd like to share with you my last project.
It's not finished yet, but is almost there...
It's a scratchbuilt Fokker Eindecker E.III.
The History
For a unknown reason, I have always been in love with this airplane and decided it was the perfect time to start building one myself.
As usual, i always start a project by performing a deep research and collecting all the pictures and docs i can find on the web about the specific model.
For my surprise, i couldn't find as much detailed pictures and documentation of this model, so i couldn't keep myself loyal to a specific version, instead, i used some details from a given model, another from other models and so on.
I had to do that in order to have all the parts together as i exptected it to be.
I have been collecting pictures and all the kind of materials for the last 4 or 6 months.
Project's parameters
I not only wanted to build a fully detailed model, but i also decided it would be interesting to make thinks even harder.
How?
What if we scaled it down to a 60cm wing span?
Not hard enough yet, what if we keep the original wing warping mechanism for rolling?
Well, wing warping in a 60cm wing span model?
Yes, we're getting there.
With all those initial parameters it was time to start planning and setting a few goals:
1. Weight should be around 160 grams
2. It should allow me to use a 1811-2000kv brushless i have had for the last 13 years and haven't ever used
3. It should allow me to use a 2s 450mah Lipo i have had for the last 13 years and also haven't ever used
4. It should allow me to use a two micro servos i have had for the last 13 years and also haven't ever used
5. It should have as much scale details as possible
6. It should have wing warping for rolling
7. It should be covered with craft tissue (not esaki)
8. It should be painted, aged and wheathered in order to look as much as the real thing as possible
9. It should use pull-pull for all the control surfaces
10. It should have a low wing loading
11. It should be able to fly outdoos
12. It shoud have functional front and rear suspensions like the real thing
13. I should not follow any plan, instead, i should project it in 3D in a CAD program (Rhino in my case) and use the 3D model to simulate and plan everything before start building it.
14. It should have an alluminium cowl and panels like the real thing
15. It should fly slow
16. Most of the electronic components should be hidden in the fuselage
Model data
Wingspan: 60cm
Wing chord: 10.5cm
AUW: 160 grams
Wing Area: 5,75 dm²
Wing Loading: 27~35 grams/dm²
Color: Aged light brown
Motor: 1811-2000 kv micro brushless
Propeller: 6x3 ou 7x3 (depending on the final weight)
Static thrust: 130~160 grams depending on the choosen propeller
Battery: Turnigy nanotech 2s 450mah Lipo
Servos: 2x 2.5g Turnigy S0251 micro servo for tail control and 1x 9x metal gear Tower Pro for wing warping mechanism
Receiver: Radiolink R6D
Esc: Turnig Plush 6A ESC
Bulding materials: Balsa, plywood, craft tissue, artist acrylic paint, thin and medium CA, carbon rods, barbecue wood sticks, and other stuffs available in the shop.
That's it, in the following posts i will be posting the pictures i already have and as the construction progresses i'll keep taking pictures and posting them here.
Fell free to interact with me, ask questions, suggest anything, etc....
First of all, sorry for my eventual gramar mistakes, english is not my first language, so please be kind guys...
Well, I'd like to share with you my last project.
It's not finished yet, but is almost there...
It's a scratchbuilt Fokker Eindecker E.III.
The History
For a unknown reason, I have always been in love with this airplane and decided it was the perfect time to start building one myself.
As usual, i always start a project by performing a deep research and collecting all the pictures and docs i can find on the web about the specific model.
For my surprise, i couldn't find as much detailed pictures and documentation of this model, so i couldn't keep myself loyal to a specific version, instead, i used some details from a given model, another from other models and so on.
I had to do that in order to have all the parts together as i exptected it to be.
I have been collecting pictures and all the kind of materials for the last 4 or 6 months.
Project's parameters
I not only wanted to build a fully detailed model, but i also decided it would be interesting to make thinks even harder.
How?
What if we scaled it down to a 60cm wing span?
Not hard enough yet, what if we keep the original wing warping mechanism for rolling?
Well, wing warping in a 60cm wing span model?
Yes, we're getting there.
With all those initial parameters it was time to start planning and setting a few goals:
1. Weight should be around 160 grams
2. It should allow me to use a 1811-2000kv brushless i have had for the last 13 years and haven't ever used
3. It should allow me to use a 2s 450mah Lipo i have had for the last 13 years and also haven't ever used
4. It should allow me to use a two micro servos i have had for the last 13 years and also haven't ever used
5. It should have as much scale details as possible
6. It should have wing warping for rolling
7. It should be covered with craft tissue (not esaki)
8. It should be painted, aged and wheathered in order to look as much as the real thing as possible
9. It should use pull-pull for all the control surfaces
10. It should have a low wing loading
11. It should be able to fly outdoos
12. It shoud have functional front and rear suspensions like the real thing
13. I should not follow any plan, instead, i should project it in 3D in a CAD program (Rhino in my case) and use the 3D model to simulate and plan everything before start building it.
14. It should have an alluminium cowl and panels like the real thing
15. It should fly slow
16. Most of the electronic components should be hidden in the fuselage
Model data
Wingspan: 60cm
Wing chord: 10.5cm
AUW: 160 grams
Wing Area: 5,75 dm²
Wing Loading: 27~35 grams/dm²
Color: Aged light brown
Motor: 1811-2000 kv micro brushless
Propeller: 6x3 ou 7x3 (depending on the final weight)
Static thrust: 130~160 grams depending on the choosen propeller
Battery: Turnigy nanotech 2s 450mah Lipo
Servos: 2x 2.5g Turnigy S0251 micro servo for tail control and 1x 9x metal gear Tower Pro for wing warping mechanism
Receiver: Radiolink R6D
Esc: Turnig Plush 6A ESC
Bulding materials: Balsa, plywood, craft tissue, artist acrylic paint, thin and medium CA, carbon rods, barbecue wood sticks, and other stuffs available in the shop.
That's it, in the following posts i will be posting the pictures i already have and as the construction progresses i'll keep taking pictures and posting them here.
Fell free to interact with me, ask questions, suggest anything, etc....
11-12-2017, 08:30 AM
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In order to have the wing warping mechanism working i had to have a very flexible wing
The strings and stripes are just scale details and have no function at all.
The strings and stripes are just scale details and have no function at all.
11-12-2017, 08:31 AM
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Cowl and metal panels done.
The cowl was spun in the lathe.
I have no experince with metal spinning so i had to learn it and i have to say: It was a pain in the ass.
I used 0.5mms roof alluminium sheet and it almost impossible to deform it without screwing things up.
I had to try 18 times untill i finally got a usable cowl.
The cowl was spun in the lathe.
I have no experince with metal spinning so i had to learn it and i have to say: It was a pain in the ass.
I used 0.5mms roof alluminium sheet and it almost impossible to deform it without screwing things up.
I had to try 18 times untill i finally got a usable cowl.
11-12-2017, 08:33 AM
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Decided to work on a few details on the metal parts...
Made some experiments with the metal finished used at that age, don't remember the name, and it was impossible to reproduce in these very thin metal sheets.
I didn't want to leave it raw, so with a dremel and a few set of tools i made a similiar effect.
Made some experiments with the metal finished used at that age, don't remember the name, and it was impossible to reproduce in these very thin metal sheets.
I didn't want to leave it raw, so with a dremel and a few set of tools i made a similiar effect.
11-12-2017, 08:35 AM
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Wing cables support.
I made it with plastic tubes filled with barbecue sticks.
Glued them together, some aluminium on the tip, functional pulley for the two cables that will be used for warping the wing and it's done.
The pulley was turned in my lathe with a scrap piece of plastic i had laying around in the shop.
I made it with plastic tubes filled with barbecue sticks.
Glued them together, some aluminium on the tip, functional pulley for the two cables that will be used for warping the wing and it's done.
The pulley was turned in my lathe with a scrap piece of plastic i had laying around in the shop.
11-12-2017, 08:40 AM
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Obviouslly i wouldn't let the brushless motor in the nose without a dummy engine covering it...
Once again, coming from the 3D project to the real world i casted some polyester resin inside a tube and used it to machine the cylinders and the engine body.
The dummy motor will be splited in two parts.
The back part (backplate) will be used to mount the brushless motor and also will be screwed to the firewall, then, the front part of the dummy engine will cover it all and be kept in place just by press fit on the back plate.
Once again, coming from the 3D project to the real world i casted some polyester resin inside a tube and used it to machine the cylinders and the engine body.
The dummy motor will be splited in two parts.
The back part (backplate) will be used to mount the brushless motor and also will be screwed to the firewall, then, the front part of the dummy engine will cover it all and be kept in place just by press fit on the back plate.