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  1. #26
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    Yes, I'm planning on taking it. The A-10 was there last year.

    Nick
    Nick Yuhasz
    Amherst, Ohio

  2. #27
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    With all of the plumbing and wiring, you would think I was building a house not an RC jet!

    Thus is a build of a scale version aircraft.....

    Nick

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    Nick Yuhasz
    Amherst, Ohio

  3. #28

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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    does this use the 4mm airline? I have not located a retract valve with 4mm fittings for my A-10 as of yet, might just have to make them, what are you using for a retract valve?

    Kevin

  4. #29
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build


    ORIGINAL: seflyer

    does this use the 4mm airline? I have not located a retract valve with 4mm fittings for my A-10 as of yet, might just have to make them, what are you using for a retract valve?

    Kevin

    The J-10 retracts use standard the standard 1/8" OD - 1/16" ID air line. My FEJ A-10 retracts use the larger 5/32" OD - 3/32 ID" tubing.

    In both cases, I used BVM high flow valves.

    Thanks

    Nick

    Nick Yuhasz
    Amherst, Ohio

  5. #30
    FenderBean's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    My f15 has the larger line and it come with the fittings for the larger airline. It works with most ev2/5 valves. That's crazy wiring lol kinda what attracts me to jets, my f15/14 will be worse.
    Global Jet Club Team Pilot
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  6. #31

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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    I will check out the high flow valves, I do not see a need for the ev valve as there are no doors to sequence that pose a problem, the one nose gear door I will do with a trigger valve off the nose gear up line.

    thanks Kevin

  7. #32

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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build


    ORIGINAL: seflyer

    does this use the 4mm airline? I have not located a retract valve with 4mm fittings for my A-10 as of yet, might just have to make them, what are you using for a retract valve?

    Kevin
    I believe Dreamworks has Festo reducers that will permit you to insert a 4mm tubing in one end and a 3mm in the other.

  8. #33
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    The J-10 came with a refueling probe. I didn’t want to attach it permanently, but I wanted to find a way to attach it for pictures. I decided to once again use strong neodymium magnets. I placed the magnets inside the fuse and glued thin stainless steel strips to the backside of the probe. Works great; perfect for pictures and also removal before flight and transport.

    Nick

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    Nick Yuhasz
    Amherst, Ohio

  9. #34
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    More progress. The receiver was finally ready to install in the rear of the cockpit area along with all of the batteries and air valve subassemblies (brakes, air brakes, landing gear / doors, and canopy) in the nose area. All the wiring and tubing is set up to allow the fuselage to be split again in the future for maintenance. With these installs, all that remains in the front fuse is to install the canopy and cockpit once the rear fuse is attached and all systems tested. New all up weight for forward section (all inclusive) is a little under 13 pounds. If you look back to my first post you will see I added a little under 8 pounds to the forward fuse (four A123 battery packs, pilot, servos, receiver / Smartfly, valves, etc). WOW!

    Nick

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    Nick Yuhasz
    Amherst, Ohio

  10. #35
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    Back to the rear fuse: The J-10 has four (4) airbrake doors in the rear fuse. I used McMaster Carr high temp fiberglass sheathing to protect the tubing from all four air brakes and rudder servo and lighting wiring. I then painted the top inside fuse near the area where the tailpipe bellmouth and turbine tail cone meet with BVM Heat Shield paint. I then placed BVM ceramic blanket in that area then covered that with aluminum tape.

    Nick

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    Nick Yuhasz
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  11. #36
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    Almost there! Since everything has been built in sub-assemblies, completing the aft section of the fuselage has gone quickly. Mounted the exhaust pipe, turbine, and all related turbine valves, pump, and ECU. Then I connected the rear fuse to the forward fuse with the supplied screws.

    Time to check the CG. As you may remember, I assumed all 4 A123 battery packs needed to be as far forward in the nose as possible to balance (based on my old Eurosport of similar size). WRONG! At the recommended 300mm back from the root LE of the delta wing, I am way nose heavy…. I had to remove the β€œlighting” A123 battery pack (lighting will be installed this winter due to a delay from Details4Scale). I also moved both receiver A123 packs back 2 feet and slid the ECU A123 pack back 3 inches! Not sure why it was so nose heavy; perhaps the rear of the jet (ex. rudder) is way lighter than the Eurosport due to the β€œhoneycomb” construction of the J-10 or the nose of the J-10 is heavier due to the full cockpit and operating canopy.

    Nick


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    Nick Yuhasz
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  12. #37
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    Well it is complete! Finally! Final weight (w/o fuel) is 36 pounds 9 ounces for the β€œhoneycomb” FEJ 1:6 scale advanced J-10 β€œVigorous Dragon”. The retrofit for the lighting, smoke, and chute will be this winter.

    On to Kentucky Jets 2012 ……..

    Nick

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    Nick Yuhasz
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  13. #38
    Terry Holston's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    Lookin good Nick, See you in KY.......................
    Terry Holston,I Fly Jets
    I'm NOT speeding, I'm QUALIFYING!!!!!!

  14. #39

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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    >>


  15. #40

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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    Hi Nick>>

    >>

    >>

    Very impressive your J-10 scale version. I would really appreciate to hear a feedback from your side how the plane performs. Is it

    >>

    stable in the air? And can it be flown also slowly?>>

    >>

    >>

    Did you somewhere add material to strengthen the parts? Landing gear or whatever?

    >>

    >>

    >>

    If you possess movie material it would be great if you could share that with us.

    >>

    >>

    >>

    Thanks

    >>

    >>

    >>

    Manuel


  16. #41
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build


    ORIGINAL: Turbine2010

    Hi Nick>>

    >Β*>

    >>

    Very impressive your J-10 scale version. I would really appreciate to hear a feedback from your side how the plane performs. Is it

    >>

    stable in the air? And can it be flown also slowly?>>

    >Β*>

    >>

    Did you somewhere add material to strengthen the parts? Landing gear or whatever?

    >>

    >Β*>

    >>

    If you possess movie material it would be great if you could share that with us.

    >>

    >Β*>

    >>

    Thanks

    >>

    >Β*>

    >>

    Manuel

    I had the maiden flight at KY Jets on Thursday morning. The only issue was the aileron control throws supplied by FEJ were way too much. It was almost uncontrolable at that control rate. I will measure the ailreon control throws I ended up with and post it later. I had a total of 4 flights with the J-10 at KY Jets. I am told someone took video and inflight pictures. I will post a link to those once they make them available.

    The J-10 will fly slow but not as slow as my Eurosport. The J-10 is much faster than my Eurosport which is about the same length and wingspan. I thought the narrow main gear was going to be a problem during landing, but it was not an issue (even in a cross wind). I don't believe I strengthened anything, but if I did, it would be included in my build thread in previous posts above. I am very happy with the J-10.
    Nick Yuhasz
    Amherst, Ohio

  17. #42

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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    Nick,

    Enjoyed talking with you and watching your J-10 fly.

    Dave

  18. #43
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    Pleasure talking to you, David. Good luck with your J-10!

    Nick

    Nick Yuhasz
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  19. #44

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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    Hi Nick

    I reckon to have found the video on youtube by searching "Kentucky Jets 2012", the video can be found under 12 #4.

    Quite impressive this machine and the skills required to control the "red dragon"....!

    Did you have to trim the elevator / aileron? Did the C.G. match with what FEJ recommends or did you adjust? Whats the C.G you fly with?

    I do ask you those questions because I also bought1:6 scale J-10. YetI didn't start building because I'm trying to find out if it's the machine that makes me happy (I really do like the look - a kind of anupdated F-16 mixed with a Chinese finish...).

    Therefore your help is really appreciated.

    Going through the youtube videos for “Kentucky Jets 2012”, a J-10 had a vertical landing obviously... feel really sorry for the pilot. Damn, what happened?

    Cheers,

    Manuel>>


  20. #45
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build


    ORIGINAL: Turbine2010

    Hi Nick

    I reckon to have found the video on youtube by searching ''Kentucky Jets 2012'', the video can be found under 12 #4.

    Quite impressive this machine and the skills required to control the ''red dragon''....!

    Did you have to trim the elevator / aileron? Did the C.G. match with what FEJ recommends or did you adjust? Whats the C.G you fly with?

    I do ask you those questions because I also boughtΒ*1:6 scale J-10. YetΒ*I didn't start building because I'm trying to find out if it's the machine that makes me happy (I really do like the look - a kind of anΒ*updated F-16 mixed with a Chinese finish...).

    Therefore your help is really appreciated.

    Going through the youtube videos for β€œKentucky Jets 2012”, a J-10 had a vertical landing obviously... feel really sorry for the pilot. Damn, what happened?

    Cheers,

    Manuel>>


    Actually, the landing in video #4 was the worst of the four I had. It lands much better than that. I need to fly it more to get comfortable with flying slow at high angles of attack (as I do with my EuroSport).

    I only had to add 2 clicks of up elevator trim at the 300mm CG FEJ recommended. Everything else was in trim from the start (just too much aileron control throw)!

    The "verticle landing" of the Large J-10, I was told, was due to an aileron problem (either a bad servo or a broken linkage).

    Thanks

    Nick

    Nick Yuhasz
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  21. #46

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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    Hi Nick

    Any update about your experience with the J-10?Have you had other successful flights with the vigorous dragon? if so what's your experience with the setup (aileron / canards / elevator setup)? It would be great if you could share further impressions after the maiden flights.

    Thanks,

    Manuel

  22. #47
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    I have had 3 more successful flights on the J-10 since KY Jets (the closest paved runway to me is 1.5 hours away). Finally got the ailerons dialed in. High rate is set at 40% of FEJ recommended aileron throw (at that rate it will rolls very fast.) Low rate is set at 30% of FEJ recommended aileron throw and is pefect for normal flight (scale-like roll rate). All other throws are set at FEJ recommendations.

    I feel much more comfortable flying it. It does land faster than my Eurosport (I ssume because it is much more scale and weighs more), but it is not a problem. Looks great in the air! I am very happy with it and will be adding lighting (if Details4Scale ever ships me the materials) this winter.

    Nick

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    Nick Yuhasz
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  23. #48
    Nick Yuhasz's Avatar
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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    All four speed brakes open while landing...

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  24. #49

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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    Hi Nick

    Thanks for the pics and infos. The plane looks awesome. If there are any videos from your performance available it would be great if you could share...

    Is anyone else out there flying the J-10 1:6 scale?

    Cheers,

    Manuel

  25. #50

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    RE: FEJ 1:6 Scale J-10 Vigorous Dragon Build

    Hi Nick

    Hopeflights are going well with your vigorous dragon..., by chance, would you mind tell me how the handling is while flying the J-10? Have you had any quality issues with the honey-comb material or the landing gear or whatever in the meantime? Any hint is highly appreciated.

    Thanks a lot in advance,

    Cheers,

    Manuel



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