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  1. #251
    RCISFUN's Avatar
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    RE: Boomerang TORUS build thread

    Here are some photos of this monster assembled....

    Well the rebuild did come at a price

    Repair airframe, strip and glass all surfaces, custom paint job, decals etc.....

    Total dry weight will all equipment installed...... 35 LBS...she's a porker![X(]

    However with the amount of lift generated by that huge wing it should be a problem

    I guess my Cheetah will be getting a work out!

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    Rich
    The New Jet Central Rhino SP, Cheetah, Rabbit & Super Eagle owner

  2. #252
    geh3's Avatar
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    RE: Boomerang TORUS build thread

    AWSOME....
    WREN TURBINES USA...GO GREEN!
    ALSO SEE: http://www.rcaircraft-specialties.com/

  3. #253
    figueroa's Avatar
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    RE: Boomerang TORUS build thread

    The monster looks great. I had the maiden on mine last month and it flew great , we did move the C/G to just behind the front tube. Won't be flying much for a while , my wife just had hip surgery and I have to play nurse for a while.
    Good luck with your maiden.
    Jose
    JetCat P120, JetCentral Super Eagle, Jet Legend L- 39
    Boomerang XL II, Futaba 14mz 2.4 ghz

  4. #254
    RCISFUN's Avatar
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    RE: Boomerang TORUS build thread

    Thanks Jose and hopefully a speedy recovery for your wife.
    Rich
    The New Jet Central Rhino SP, Cheetah, Rabbit & Super Eagle owner

  5. #255
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    RE: Boomerang TORUS build thread

    That's quite the rebuild. Came out pretty nice. I think she'll fly fine - you may just find yourself wanting a bit more power.

    PaulD
    If it\'\'s too LOUD - You\'\'re too OLD

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  6. #256
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    RE: Boomerang TORUS build thread

    Nice job Rich. I'd venture to say that it looks better than new!

    Bob
    If it\'\'s worth doing, it\'\'s worth doing it right.
    AMA 779352, JPO 1965, IMAA 40337

  7. #257
    RCISFUN's Avatar
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    RE: Boomerang TORUS build thread

    Thanks Bob
    I'm quite happy with it so far
    I'm working on some lighting now...it should be cool when she's lit up
    Rich
    The New Jet Central Rhino SP, Cheetah, Rabbit & Super Eagle owner

  8. #258
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    RE: Boomerang TORUS build thread

    I look forward to seeing it at Hamburg!

    Bob
    If it\'\'s worth doing, it\'\'s worth doing it right.
    AMA 779352, JPO 1965, IMAA 40337

  9. #259

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    RE: Boomerang TORUS build thread

    Can anyone let me know when using the kevlar fuel tank do you put it as far forward or back on tank mount trying to see what would be best Thanks..

  10. #260
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    RE: Boomerang TORUS build thread

    As it seems that everyone has to add nose weight, I would think the tank needs to be as far forward as possible, just a thought.

    Mike
    My Gast is Flabered.
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  11. #261
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    RE: Boomerang TORUS build thread

    Yes adding nose weight is a given with the Torus.. Irecently extended the fuse 3+ inches
    that allowed me to balance with "0" weight! + the plane is definetly lighter!!! Iposted the
    construction of this here recently
    WREN TURBINES USA...GO GREEN!
    ALSO SEE: http://www.rcaircraft-specialties.com/

  12. #262
    RCISFUN's Avatar
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    RE: Boomerang TORUS build thread

    I had to add 670 g (23.6 oz) of lead shot to the tip of my nose[:@]

    However I would think that you want to keep the main tank as close to the CG to eliminate flight trim changes, besides you don't balance the airframe with fuel in the tank.

    I keep my tank all the way aft (see post #251) to keep it close to the GC.
    Rich
    The New Jet Central Rhino SP, Cheetah, Rabbit & Super Eagle owner

  13. #263

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    RE: Boomerang TORUS build thread

    i am planning to use JR 8411 servos 180 oz @6volt and 8711 0n flaps any comment would be helpfull

  14. #264
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    RE: Boomerang TORUS build thread

    I am using 8411's everywhere except the flaps as well. 2- A123-2300's each thru it's own JR HD switch. Lots of servo power - no problem I have a 170 in mine - clocked at 189 top speed.

    PaulD
    If it\'\'s too LOUD - You\'\'re too OLD

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  15. #265
    RCISFUN's Avatar
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    RE: Boomerang TORUS build thread

    I maidened the Torus yesterday after spending considerable time setting up the radio, performing taxi and brake testing, and range testing etc.

    I purged the fuel lines of my Kero Start Jet Central Cheetah and performed a test start, it was totally uneventful, a couple of minor flames to start then it was as smooth as silk once all of the air bubbles were purged from the fuel system.

    After shutting down the turbine, I topped off the fuel and decided it was time to fly this thing.

    The next start was super smooth, no flames at all and the Cheetah was purring in less than 30 seconds from the initiation of the start!

    The take off was impressive, I used my take off flap position and it climbed out at a 30 degree angle and accelerated. The Cheetah pushed the 42 Lb airframe effortlessly; I found that I needed to pull the stick back to around ½ throttle while I was cruising around.

    It only needed a couple of clicks of aileron trim and elevator trim, the first thing that was very evident is it was VERY pitch sensitive. The balance point was behind the main spar, so I guess I will have to move it up to the center of the main spar.

    I installed 5W Luxon emitters and 1W red and green strobes in each tip tank, they really show up in the bright sun light

    Unfortunately I forgot my camera when going to the airport[:@]

    The attached photos are from Saturday when I test fitted everything together.
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    Rich
    The New Jet Central Rhino SP, Cheetah, Rabbit & Super Eagle owner

  16. #266
    RCISFUN's Avatar
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    RE: Boomerang TORUS build thread

    Here are some internal shots of the install, the last two photos are my fuel and smoke valve locations.
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    Rich
    The New Jet Central Rhino SP, Cheetah, Rabbit & Super Eagle owner

  17. #267

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    RE: Boomerang TORUS build thread

    Can anyone tell me were you would use the two flat wood servo mounts if you were to use them . THANKS

  18. #268
    RCISFUN's Avatar
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    RE: Boomerang TORUS build thread

    I took the the Torus to the Joe Nall Fly in last week and put on five flights. I added a two cell 5000 mA LiPo on top of my battery tray for my lights, now the Torus balances on the center of the spar. All tendencies of elevator sensitivity are gone.

    The Jet Central Cheetah performs flawlessly, it powers this 42 Lb airframe effortlessly, I find myself spending most of the flight at half throttle, I have my timer set for six minutes before I start my landing, the fuel tank is still about half full at the end of the flight..
    Rich
    The New Jet Central Rhino SP, Cheetah, Rabbit & Super Eagle owner

  19. #269
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    RE: Boomerang TORUS build thread

    Managed to weigh mine last week. 35 lbs dry with about 1 lb of lead in the front to balance. Equipped with 2 -a123's, 4000 may 3 s turbine pack and 1600 mah smoke pump battery. UAT was full, the prest were basically empty. IQ Hammer170 for push.

    PaulD

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  20. #270
    RCISFUN's Avatar
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    RE: Boomerang TORUS build thread

    Paul yours is the same weight as mine dry.... Interesting...
    Rich
    The New Jet Central Rhino SP, Cheetah, Rabbit & Super Eagle owner

  21. #271

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    RE: Boomerang TORUS build thread

    Hi guys,

    Just finished building the Torus. With 3 huge batteries in the nose, she is still tail heavy. Anyway, since I've used Electron retracts, I need to add the 4th battery, so hopefully I will need less dead weight!!

    By the way, most of you have been raving about the Torus. My personal views are that the quality is absolutely not up to the mark for the price you pay. No grudges against the owner of the company, but for a price tag of $1700, its not at all worth it.

    1) 95% of the formers dont even make contact with the fiberglass fuse. i had to empty out two tubes of Hysol!!
    2) The hardware that was supposed to be included (sullivan stuff), wasn't included in the box. However, that is being sent seperately now.
    3. All the hinges are of poor quality.
    4. The wing tips dont have a nice fit. Really have to sand the tips so that they lie flat against the wing.(not using the tip tanks, so I have no idea about those)
    5. To hold the wing tips on, they have provided 2 M4 screws. That is a good idea, this way you can change the wing tips to tip tanks whenever you like. But with what I have seen, they dont use blind nuts but a M4 nut which was glued at an angle and the bolt was locked. I had to cut open the wing only to find a nut instead of a blind nut. Not a very good design and a lot of work for me!

    The overall quality is dissapointing for the big price tag. This was my 7th jet that I built to throw around but am absolutely shocked at the quality. I even built a shockjet and DV8R and I can tell you, their hardware is way way better and the quality of all the components is absolutely fabulous compared to the Torus.

    Anyway, hope some changes are made for future productions.

  22. #272

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    RE: Boomerang TORUS build thread

    Veroaviaor,

    Your probably right about the quality on the boomers, the good part is all the designs fly really well. I am sure once you get a few flights on the Torus you will forget all the complaints on the build and quality.

    Happy landings
    Chatty.

  23. #273

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    RE: Boomerang TORUS build thread

    Veroaviaor,

    Your probably right about the quality on the boomers, the good part is all the designs fly really well. I am sure once you get a few flights on the Torus you will forget all the complaints on the build and quality.

    Happy landings
    Chatty.

  24. #274

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    RE: Boomerang TORUS build thread

    Chatty,

    Absolutely true about the flying. But the quality for the price.................!!

  25. #275

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    RE: Boomerang TORUS build thread

    Hi guys do you know if the airframe on a torus can handle a jetcat 180rx with 40 lb of thrust, or i have to throttle back for the jet not to break apart?


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