easy to build EF-2000 Eurofighter - RC Groups
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Mar 20, 2005, 06:21 AM
registered foam addict
chara's Avatar

easy to build EF-2000 Eurofighter

I nearly finished my flat-Depron built Eurofighter
and I thought I share some pics with you.

My design objecives were:
- as scale as possible (concerning dimensions of wing, fin and fuselage)
- thrust to weight ratio of 1.2 (just like the original )
- good handling qualities esp. at low speed
- low cost, simple design, easy to build
- small enough to be easily transported and stored

I thought, I'd try out some unconventional propulsion design and place the motor on the aircrafts back. Helps saving your props during landing.


Weight: 271g (315g with speed 480 motor)
Thrust: 325g GWS 8x4"(355g with speed 480/ 4blade 6x3")
Thrust/Weight: 1.2
Length: 71 cm
Wing span: 51 cm
Motor: speed 300 3:1 gear
Battery: Kokam 7.4V 1250mAh, 15C
Misc.: 25A ESC, 2x8g servos
Control via Flaperons and (!) moving foreplanes

I did not test fly it yet since the weather is quite bad and I might have to redesign in order to shift the CG a little more up to reduce pitching moment due to thrust.
Hope to inspire some of you to rebuild and probably to refine the design. I'm realy looking forward for your feedback
(pics of the design process will follow soon)
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Mar 21, 2005, 09:23 AM
“There’s no place like Foam”
gpw's Avatar
We don't get to see much of ther euro (cept with all the tourists shopping ) ...nice plane , and good looking models ... best of luck on the maidens !!!!! let us know how it flies , OK?
Mar 21, 2005, 10:10 AM
Registered User
Magic840's Avatar
Great looking plane. Cant wait to hear how it flys, just might have to make one of my own.

Mar 21, 2005, 11:06 AM
Krued Up
snolord1's Avatar
i second that those are some nice planes,i would probably make some mods.....EDF....CDROM.... .
Let us know what happens.thnx

Mar 21, 2005, 11:34 AM
3 Blades to the Wind
Shaun Hendricks's Avatar
I see you linked the elevons to the canard, separating the canard halves. I'm very curious to hear how this works out for you. I had wondered about doing something like this on a hyper delta I've been mulling around in my head. I was thinking it might make it too 'twitchy' but I hope it works. It's a cool idea and the military fighters have their canards independent like this, but they are computer controlled... not direct linkage. So can't wait to hear the maiden report! Good Luck!
Mar 22, 2005, 04:59 PM
registered foam addict
chara's Avatar

EDF would be really cool. I thougt about it as well and got me for test reasons an EDF 50 and an EDF64. To get the desired thrust level you would need two of those which in turn drives up the weight. Would be great to see one flying with EDFs!

you are right. In real life the canard is usually driven independently from the flaperons and its position is a function of angle of attack. To link them to the flaperons was the "chapest" way to make them movable :-). The weatherforecast is prommising for the weekend - hope to be able to give you next time some flight-reports.

Meanwhile take a look at the pics from the build...
Mar 22, 2005, 05:03 PM
registered foam addict
chara's Avatar
These are the main-parts ... Made of 3mm and 6mm Depron.
The servos and all the electronics are neatly stowed in the air intake....
Mar 22, 2005, 05:11 PM
registered foam addict
chara's Avatar
I also used some "Styrodur" (blue) to stabilize the forward fuselage (seen from below) and tail.
Mar 22, 2005, 05:15 PM
registered foam addict
chara's Avatar
...the holes are for weight-saving. I saved over 2g! :-)))))

That is the wing - belly section. The hatch is very useful for reaching the plugs in your "avionics bay"
Aug 25, 2005, 07:20 PM
registered foam addict
chara's Avatar
OK here is the flight report (a bit late, I admit).
Unfortunately it did not fly nong enough to judge te handling characteristigs.
All I can say is that the power setup was quite good. The Idea of the back mounted prop was not that good because the pitch-down moment was very high. Hand launches were therefore quite tricky.
It behaved very sensitive around the roll axis. Maybe I used too much throw on the elevons or not enough expo on the RC.
In the end it fatally crashed before I could do the modifications :-(....
I might come back to the EuFi desighn sometime ...after I finished the other projects that are on my list :-)
Aug 25, 2005, 07:22 PM
registered foam addict
chara's Avatar
...and sorry for the typos, its 01:22 in the morning ... good night!

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