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  1. #3126
    zonker123's Avatar
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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: fireblade5437

    Hi

    I could make you a set but would need dimensions etc also depends how quick you want them as in Holland at moment for work then a big install job so might not be able until end of Feb time.

    Alan
    Alan,
    I will be using a Jet Central Rabbit -91 mm dia. according to the spec sheets, I can do the turbine mounting holes on top of the mounts since I don't know the strap dimensions. End of February not a problem, at your convenience.

    thanks


    Jet Central Rabbit, Cheetah, and a Rhino.
    Team 2DogR/C

  2. #3127

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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: zonker123


    ORIGINAL: fireblade5437

    Hi

    I could make you a set but would need dimensions etc also depends how quick you want them as in Holland at moment for work then a big install job so might not be able until end of Feb time.

    Alan
    Alan,
    I will be using a Jet Central Rabbit -91 mm dia. according to the spec sheets, I can do the turbine mounting holes on top of the mounts since I don't know the strap dimensions. End of February not a problem, at your convenience.

    thanks



    Good choice of turbine for the Falcon. It will make you smile as mine does
    Love my Ultra Flash Merlin 140 and F22 Raptor P140 RX Multiplex Royal Pro 16

  3. #3128

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    RE: Bob Cat Copy Falcon 120 Jet

    After reading most of this thread......    I just had to go get my very own nitroplanes falcon 120  its bigger than i thought (well only helis so far so anything bigger than my raptor 90 is BIG).  I got me the white one with USAF and FLY stickers.  I really like it, will for sure do some modifications.   The hindges that come with the kit will be replaced with robart or du-bro also will add more epoxy to formers, some formers were missing epoxy or had very little(cant complain for the price). 

  4. #3129
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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: andy boy

    After reading most of this thread......ย*ย*ย*ย*Iย*just had to go getย*my very ownย*nitroplanes falcon 120 ย*its bigger than i thought (wellย*only helis so far soย*anything bigger than my raptor 90 is BIG).ย* I got me the white one with USAF and FLY stickers.ย* I really like it, will for sure do some modifications.ย*ย* The hindges that come with the kit will be replaced with robart or du-bro also will add more epoxy to formers, some formers were missing epoxy or had very little(cant complain for the price).ย*
    Andrea,

    Go have a look at what mods I have made to Mario's Falcon. It's upstairs in his shop. You don't need most of the formers, plus you need all the space you can get at the back in order to fit in the largest possible tank in there. As for hinges, I have been flying my Falcon for almost two years on the hinges that came with it with no problems whatsoever. You need to strngthen the landing gear mounts though, heavily, as they will come off with the very first landing. You might also consider replacing those cheap spruce wood rails with aircraft grade plywood ones.

    Chris
    IJMC-Cyprus,
    Powerbox Systems, Jet-Tronics, Jets-Munt, FADEC, Grumania Jets, Kingtech Turbines

  5. #3130

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    RE: Bob Cat Copy Falcon 120 Jet

    hello cairoman, yea i was inquiring today, I spent about 2 hours checking the jj1400 falcon, in fact when i entered the shop i went staight upstairs.  Will also add more epoxy to formers (they need it), also new du-bro heavy duty hindges. 

  6. #3131

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    RE: Bob Cat Copy Falcon 120 Jet

    Yes the landing gear mounts as well will be beefed up and got some plywood from super home center. Thanx for the tips (and the oil )

  7. #3132

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    RE: Bob Cat Copy Falcon 120 Jet

    CF wingtube showed up today.........Time to finish the slight mod on the wing to allow the tube past the gear. Then I should be able to glass it up.
    www.hobbiesxtreme.com

  8. #3133

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    RE: Bob Cat Copy Falcon 120 Jet

    hi guys,
    i actually finish a falcon 120.....this one will be fited with a kingtech K80............it should fly well !!
    unfortunately, my falcon came without manual......so it would be great if someone could give me the center of gravity and the throws allowed to all surfaces...
    thanks a lot guys!!

    cheers
    Vincent from new caledonia

  9. #3134

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    RE: Bob Cat Copy Falcon 120 Jet

    cog is 13 inches

  10. #3135

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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: davo580

    cog is 13 inches
    From . . . . . . ?

  11. #3136

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    RE: Bob Cat Copy Falcon 120 Jet

    hi there,
    generaly it's from leading edge.....on the fuse.....
    what about throws ?
    thanks a lot !

  12. #3137

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    RE: Bob Cat Copy Falcon 120 Jet

    On the Boomerangs, Alan gives the CG from the trailing edge, so it is important to be certain. 13" sounds like a long way from the leading edge and you would end up with an aft CG, if you measured it the wrong way.

    EDIT - Sounds like this one is from the leading edge:

    http://www.rcuniverse.com/forum/fb.asp?m=8815756

    .

  13. #3138

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    RE: Bob Cat Copy Falcon 120 Jet

    ok........thanks a lot....
    what about throws now?

    thanks !!

    vince

  14. #3139

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    RE: Bob Cat Copy Falcon 120 Jet

    Hi Vince, CG should be 13inchs back from the leading edge, this is perfect.
    - control throws, you can do a search on this thread, there is quite a bit of info, but in general, manual gives

    - aileron 20 mm each way

    - elevator 15 mm each way ( remember the elevator is rigged so its upper surface is in line with the stab upper surface. Do not align the bottom of the stab and the bottom of the elevator. It will look like the elevator is slightly rigged up in this position, this is completely normal)

    - Rudder 15mm each way, I use more, around 20mm

    - Flaps 20mm down, but I use as much as I can get, to slow her down and come in with a little power on. Most people do this. Use around 10 to 20mm for take off, if you like, doesnt make any real difference for the take off, then everything youve got for landing. If you have a really strong crosswind, (normal for me), then i do not use all the flap, only the 10 to 20 mm to reduce the swing from the wind.

    That will get you safely airbourne, then tinker till you fing your sweet spot. I did notice the later Falcon, required a bit more down elevator when pushing through an inverted loop than the older model, dont know why, easy to increase if you need to, but it will fly inverted no probs with the recomended settings. Happy flying, youll love the model. cheers tim

  15. #3140

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    RE: Bob Cat Copy Falcon 120 Jet

    Here you go!
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  16. #3141

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    RE: Bob Cat Copy Falcon 120 Jet

    hello guys........
    thank you so so much.....
    first flight shoud be on sunday...!!

    cheers
    Vince

  17. #3142

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    RE: Bob Cat Copy Falcon 120 Jet

    Hey All,

    Ive just started putting the radio / services tray together but if i put the UAT in front of the main tank it is difficult to access the front wing retainer bolts with the tray in place, i notice many of the pics on here are simular. Was just wondering what people have done to workaround it?

    Any pointers or pictures much appreciated.

    Thanks in advance
    I Just Wanna Fly

  18. #3143

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    RE: Bob Cat Copy Falcon 120 Jet

    ORIGINAL: madfreestyler

    Hey All,

    Ive just started putting the radio / services tray together but if i put the UAT in front of the main tank it is difficult to access the front wing retainer bolts with the tray in place, i notice many of the pics on here are simular. Was just wondering what people have done to workaround it?

    Any pointers or pictures much appreciated.

    Thanks in advance

    HI i screwed some m6 bolts in to the tee nuts in the wings with the head cut off and a 60 deg tappered cross hole drill in it ( use center drill ) and fix some blocks in the fuz which these go into and the got a six m/m grub screw with a 60 deg point on it which screws into the block and into the tappered hole pulling the wings up no need to go into the fuz down the field just two small holes in the bottom to put the allen key in works great
    http://www.rcuniverse.com/forum/m_59...39/key_/tm.htm

    note the small allen key holes next to the screw for the hatch
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    I FEEL THE NEED THE NEED FOR SPEED

  19. #3144

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    RE: Bob Cat Copy Falcon 120 Jet

    Awesome job new, guess i dont need the foremost retainer then looking at your setup. On mine theres a captive nut just forward of where your wires come out of the fuse.

    Are you using the std wing tubes or did you upgrade them?

    Cheers
    I Just Wanna Fly

  20. #3145

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    RE: Bob Cat Copy Falcon 120 Jet

    standard wing tube with dowel epoxyed in it, turned it down to fit inside because its a funny size to get hold of had over100 flights now with supersport at 18+lbs.
    mine must be early version had no bolts at the front only at the hatch do you need them at the front ?
    I FEEL THE NEED THE NEED FOR SPEED

  21. #3146

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    RE: Bob Cat Copy Falcon 120 Jet

    It depends on which version of the Falcon 120 you have. The early ones had only one bolt per wing. From his picture this is obviously what new2jets has. It sounds like you have the later version with two bolts per wing. Because the wings on version 2 are not as strong as on version 1 I recommend that you use both sets of wing bolts.

    On mine I made the equipment tray end just forward of the front wing bolts. The UAT is mounted in the equipment tray forward of the bolts.

    Joe
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  22. #3147
    BaldEagel's Avatar
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    RE: Bob Cat Copy Falcon 120 Jet

    There are two solutions to this problem IMO:

    1. Don't use a UAT, use an Orbit fabric clunk, I use one in my Elan without a UAT and it works fine.

    2. Put the T nut in the fus and the bolt in the wing, hole in the wing to use a ball allen key to do up the bolt, look back in the thread I detained it earlier.

    Mike
    My Gast is Flabered.
    No matter what anyone say's 100% is the maximum you can get.
    If you see a deleted post, my Avatar say's it all.

  23. #3148

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    RE: Bob Cat Copy Falcon 120 Jet

    My Turbine is heavy, so needed the UAT fwd for balance, mine is just behind nose leg. If you have later model you need both wing bolts, front and rear. I use ally cap head screws and made a screw driver with 90 degree bevel gears, so front bolts can be tightened easily, with no fiddling. Rear bolts , I use a ball end allen driver through access hole in bottom of fuse. Rolson, who make all the cheap but usefull tools in the UK, make a 90 degree attachment (in fact its about 80 degrees) which will do the same job, for around 5 pounds.

  24. #3149

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    RE: Bob Cat Copy Falcon 120 Jet

    Thanks for the replies chaps, think ill do some head scratching and routing over the weekend.

    Hey 777 Did you urgade your tubes? Have you got a source in the uk?
    I Just Wanna Fly

  25. #3150

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    RE: Bob Cat Copy Falcon 120 Jet

    Yes fitted a carbon main tube, use the ally front one. I bought it from Als hobbies, they have a rack of different size tubes, you have to ask some one to go and get a few out and measure up one that is the right size. If you get the right person, they will do that for you, if not they wont bother. The carbon is a fair bit lighter than the ally. If you get a new tube or even if you are using the supplied tube, Make Sure It Fits all the way to the end of both end ribs in the wings, when it is built up. Fit the tube in one wing and fit the wing to the fuse. Draw a pencil line on the exposed tube on side of fuse without the wing. Now pull out the tube and fit it to the other wing. The pencil line should just go into the wing by a couple mm, if it disappears inside, the tube is too short and the wing will not be supported corrected. The newer wings have the ribs positioned @ 1/2 inch further out than the older wing, but they were supplying the wing tube, cut for the older models in te newer models.
    If you want a chat, pm me your number, all best Tim


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