Hi, all

I am interesting design the Large aerobatic jet for the new rules of F-3S, i now enlarged the Dragon and modify some out line for better my new Ultra Dragon, and I can not wait to test fly it!

the new Ultra Dragon
length: 2657mm (104.6")
wingspan: 2337mm (92" )

here are 3D drawings for the ultra Dragon, i will let you know the more information for the new Ultra Dragon, any suggest would be appreciate!!

Best Regards

Anton

That looks great Anton!!

Fin/Rudder needs to be larger....taller (big canopy will upset airflow) and more cord to overcome fuselage nose area for good tracking...

Anton,

Live hinges for flaps would be nice.

And can I get some trade in credit for my now compact dragon for the bigger version?

mike

Thank you, good idea ..

yes, the ailerons with Flapas are live in hinges..TKS

welcome to join to Ultra Dragon!

Anton. . .

I love the design and the fact you are going to make this already great jet even better. I agree with Dave re; the vertical fin/rudder. From the CAD, it looks like both can be enlarged. . .BUT keep the sweep for stability. My suggestion would be to make the stabilizer/elevator and vertical fin/rudder exactly the same size. Benefit would be one mold for production as well as part exchange availability. There are aircraft manufacturers today who use this very concept. Another benefit would be aerodynamic balance due to exact airfoils of both.

I look forward to getting my hands on one of these. Keep us informed of your progress.

Best regards,
Eric

Anton,

If you make the fin/rudder too tall,you will get excessive coupling during Knife edge flight. This can be mixed out,but is something you should at least consider.Good luck,

Erik

The trailing edges of the flying surfaces on most jets are to sharp, ( come down to a point) if these were kept thicker ,this also increases straight line stability. The fin / rudder trailing edge is one of the most important to do this it stops fish tailing.
Shape looks great, better than some to do the F3s job, :-)
Regards

WOW.... Thank you for these opinions and commented, I now got more idea ,

Wow!

I think you can increase the verticaly size of the air intlet to able to mount very big engine like P200.
I don't know if I have explain it clearly.
Best regards.
Fifou

I think the whole concept is great. A larger Dragon will be nice. the cad drawings you posted look good to me.....maybe a little more cord on the fin and rudder for looks and added yaw stability

Mickey

Normally preparations work to assemble wing to fuselage before each flight is annoying..

So I will design a three-piece-wing.The mid wing is permanently fixed to fuselage.It is only 95CM(37.4") long and can easily sit inside the car.

Just assemble two small wings and two wires to fuselage before every flight.No need to retract gear and insert airlines.

Nice viperjet.

excuse me,but F3S isn´t german speed cup?

Good job Anton.
It looks nice

Keep us informed.

starting make the mould of Ultra Dragon by cnc, pls wait a few days , the mould will finish...

Anton, if you want to do something special, you have to hit the Ultra Flash!
The only real goal is. Faster, more durable, and cheaper!
If you can not do this, forget it!

br, Petri

This sounding to be a great deal . Mid wing attached to fuse with retacts in sounds good and a great size sport jet . Got my new skymaster mb399 arriving here end of january ! 

And I should add " and also hit the Ultra Bandit"

BR

Jesus

Good job but why not other scale plane like a Alphajet for bee turbine or Rabbit? Maybe a small F9F?

And with electric retracts that would be great .

is similar to F3A but with turbine engine

Would be awesome to have wing tips like the Ultra Flash family. I guess they are functionally reducing wingtip drag, making the plane more slippery. If not, they look cool as $**t.
P.S. Standard Dragon version 3, same tips IMO.. GREAT JOB on the Ultra Dragon!