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Old Mar 26, 2011, 05:57 PM
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now I think about it..
it's more of a space issue than a tricky thing to do. a piece of piano wire ment into the canards will do the job. the prob is .. whereto put the servos because you actuelly need 2 next to each other
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Old Mar 26, 2011, 06:03 PM
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.

I just do the KISS principle
With 3 servos. Just have 1 servo for canard pitch
plus 2 servos for elevons. Don't worry canards for rolling.

2 Mixes:
- Ch 1 & 6 for flapperons
- Ch 2 -> 6 for elevator to flap mixing

or better yet 2 servos for canards, 2 servos for flaperons
and more mixing fun :-)

for 3 servos set up this would be a good starting point,
full up elevator: Trailing edges of canards go down 3/4", elevons up 3/8"



.
Last edited by tweeter1; Mar 26, 2011 at 06:33 PM.
Old Mar 26, 2011, 06:33 PM
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just 1 servo for elevaor for the canards.. they are not really needed but it would be nice just to see movement there
a guy at our airfiled has the canards just for airbrakes and nothing more.
Old Mar 26, 2011, 06:36 PM
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Quote:
Originally Posted by pavcon View Post
just 1 servo for elevaor for the canards.. they are not really needed but it would be nice just to see movement there
a guy at our airfiled has the canards just for airbrakes and nothing more.
Oh you have to see the canards help the jet a lot doing High alfa stuffs.
And Delta platform is great for this.


And yet, during landing, canards are great for airbrakes;
see the end of this video, how canards work as airbrakes

Jas 39 Gripen @ Red Bull Airpower 2009 Zeltweg (4 min 44 sec)

.
Last edited by tweeter1; Mar 26, 2011 at 06:42 PM.
Old Mar 26, 2011, 06:52 PM
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I believe that the authority of the tailerons alone as ailerons will be enough... the canards as elevators won' tblock the airflow to the large atailerons so.. working just as elevators will be fine and a piece of cake mod to do.
but the movement for high alfa on those models are inverted.. or is it just me :/ ?
Old Mar 26, 2011, 06:55 PM
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and btw.. it's better to use the canarsd just for elevators and bother with a rudder mod
Old Mar 26, 2011, 09:26 PM
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.

this would be a good starting set up
for 3 servos config

1/ Elevators: up/down 3/8"
2/ canards: up/down 3/4"
3/ elevons: +/- 3/4"
4/ rudder: l/r 1.5"
exponential: +/- 60%
Old Mar 27, 2011, 01:02 AM
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Hi tweeter1.
Canards are flimsy and this mod will take some time. I have them on Eurofighter, but it is bigger bird and I use them only for up/down.
Old Mar 27, 2011, 03:18 AM
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takiss. Just a piece of piano wire bended at a π shape will do the job for the cnards. It will not take that long.. I will take some photos of what are my thoughts and i will post when i get home. Only thing you need is a xacto knife. A small piece of piano wire and a small piece of plastic tubing for the wire to pass through..
Now thats for the elevator function. If yoou want ailerons too thats a complete different story and probably out of my bounds to do
Old Mar 27, 2011, 03:34 AM
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pavcon;

I thought you are still there forever with that
500,000+ posts on those mini jets.
Very funny thread though, same thing over, over... over again

.
Old Mar 27, 2011, 03:17 PM
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Quote:
Originally Posted by tweeter1 View Post
pavcon;

I thought you are still there forever with that
500,000+ posts on those mini jets.
Very funny thread though, same thing over, over... over again

.
yeah.. I'm not a monster of patience but when a thread is growing huge it's inevitable to have the same questions over and over again.. I guess the next question is going to be like... .. DOES THE STOCK ESC HANDLE 4s ? ? ? orrr.. which is the fastest airframe?? or.. are those real JETS??? bah...
Old Mar 27, 2011, 09:55 PM
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Alright, I ordered the Rafale. This is going to be my first 70mm Delta Wing and for the power system, I will probably ditch the landing gears and use:
  • 60A Turnigy Plush ESC
  • 3000kv Freewing Motor
  • 2200mah 4S1P 45C Nanotech Lipo

Will Metal Gear servos be needed? Please post any of your building/flying tips here for sharing
Old Mar 28, 2011, 03:48 AM
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Percivale no metal gear servos needed. some HXT900s will do the job.
Old Mar 28, 2011, 03:57 AM
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takiss,

According to you, do we have any chance to convert the wings to bolt-in version? By using some ply and carbon tube.

Ozgur
Old Mar 28, 2011, 04:04 AM
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Originally Posted by ozgur View Post
takiss,

According to you, do we have any chance to convert the wings to bolt-in version? By using some ply and carbon tube.

Ozgur
can;t wait for ozgur to start his magic


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