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  1. #2451
    BaldEagel's Avatar
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    RE: Bob Cat Copy Falcon 120 Jet

    fw190

    Thanks for that, at least you read my post correctly, so to check the C of G with the bare fus 2" behind the center of the front spar hole it is, my favorite expession is "Whatever butters your Turnips" just has a nice gentle feel about it.

    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.

  2. #2452
    BaldEagel's Avatar
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    RE: Bob Cat Copy Falcon 120 Jet

    ORIGINAL: Tow Cobra

    My question is about after care. Do you drain the main and UAT tanks if all fuel is not used in a flight. Do you drain fuel from the fuel pump? Or, do you leave remaining fuel in the system (I do have a shut off valve to the turbine which I closed after running it).

    Thanks.
    Tow Cobra

    It all accords how long you are going to leave the aircraft before using it again, paraffin and petrol have a hardening effect on Tygon and will eventually make the tubing very stiff, if you are going to leave it a long time then drain everything, if you are planning to fly again within say 14 days then leave it as it was when you shut down, but plug the vent hole to stop fuel draining out in the car/house etc, personnaly I drain everything down it stops the smell permiating my workshop and I repurge the system at home before going to the field.

    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.

  3. #2453
    Xairflyer's Avatar
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    RE: Bob Cat Copy Falcon 120 Jet

    I always drain mine until about 3/4 of the header tank
    www.letterkennymodelflyingclub.com
    www.jmaireland.com

  4. #2454

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    RE: Bob Cat Copy Falcon 120 Jet

    Just fits in my Commodore!!!

    Mav
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    Love my Ultra Flash Merlin 140 and F22 Raptor P140 RX Multiplex Royal Pro 16

  5. #2455

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    RE: Bob Cat Copy Falcon 120 Jet

    Mav, fold those rear seats down, and you don't have to remove the booms. See my previous pic

  6. #2456

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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: Aussie1

    Mav, fold those rear seats down, and you don't have to remove the booms. See my previous pic
    Hey Aussie,

    Yes that is true, but then I cannot take my mates as passengers!! I can put the booms on with 2 people and electric screwdriver in approx 3 mins!!!!!!!

    How is yours going?

    Mav
    Love my Ultra Flash Merlin 140 and F22 Raptor P140 RX Multiplex Royal Pro 16

  7. #2457

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    RE: Bob Cat Copy Falcon 120 Jet

    Mav, airplanes great, but no turbine flying allowed because of extreme heat and fire bans. We have had virtually no rain in 3 months!

  8. #2458

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    RE: Bob Cat Copy Falcon 120 Jet

    Help!!!
    I need to know.... when setting up for CROW How many degrees of ail., flaps and elevator have had good effect.
    Thanking ya'al in advance. Ray
    Good judgment comes from experience....
    and a lot of that comes from bad judgment...

  9. #2459
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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: Aussie1

    Mav, airplanes great, but no turbine flying allowed because of extreme heat and fire bans. We have had virtually no rain in 3 months!
    Please allow me a quick aside to this outstanding thread.

    Australia is suffering through a great tragedy. The lack of rain and extreme heat has contributed to one of the worse fire seasons in their history. Many deaths have occurred.

    Please keep the wonderful people of Australia in your thoughts.

    Thank you.

    Alaska Bob - "Can I fly one of your jets? I crashed all of mine."

  10. #2460
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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: noray1

    Help!!!
    I need to know.... when setting up for CROW How many degrees of ail., flaps and elevator have had good effect.
    Thanking ya'al in advance. Ray
    On board with this question. Anyone?
    Alaska Bob - "Can I fly one of your jets? I crashed all of mine."

  11. #2461

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    RE: Bob Cat Copy Falcon 120 Jet

    Thanks Bob for your thoughts on Australia's worst natural disaster. Down south here we are in a very bad bushfire area and smoke haze from the fires still floats over the cities. There are volunteers from all over the world still fighting the fires as I write this and especially Americans who are flying some of the fire bombing aircraft. Let's not turn the discussion away from this magnificent sport jet, but us Aussies certainly appreciate the thoughts.

  12. #2462
    BaldEagel's Avatar
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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: rjbob


    ORIGINAL: noray1

    Help!!!
    I need to know.... when setting up for CROW How many degrees of ail., flaps and elevator have had good effect.
    Thanking ya'al in advance. Ray
    On board with this question. Anyone?

    If you are getting your flaps down too approx 90deg then you need about 10mm up aileron, try this at height to see if you still have aileron aurthority before you use it to land with, different airframes need different settings, weight gear down or up etc.

    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.

  13. #2463

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    RE: Bob Cat Copy Falcon 120 Jet

    Hey I am no longer worring about the T-750 24lbs of thrust killing my modded Falcon just look at this video... This guy has 34 lbs titan on his falcon... "WOW" http://www.youtube.com/watch?v=C3Ja7...e=channel_page
    Dave
    Rhino - Nexus - Simjet 3000- M90 - K80 - P70 - RAM 750 - MW44 Gold

  14. #2464

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    RE: Bob Cat Copy Falcon 120 Jet

    I don't think very many are using crow on their Falcon 120's. It's really not needed. With 45 degrees of flap you can slow it down to almost walking speed when landing.

    Joe

  15. #2465
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    RE: Bob Cat Copy Falcon 120 Jet

    That's unreal.
    I've been inching mine closer to the max and haven't had any troubles yet.
    Perhaps they aren't as flimsy as some would like you to beleive.

  16. #2466

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    RE: Bob Cat Copy Falcon 120 Jet

    So much for what I know. I have a NIB Rabitt that I thought would be too much for my F-120.[X(] I think i will just stick with the Super Bee and putt around at 155mph for 9 1/2 minutes. To each his own I guess.

  17. #2467
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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: joeflyer

    I don't think very many are using crow on their Falcon 120's. It's really not needed. With 45 degrees of flap you can slow it down to almost walking speed when landing.

    Joe
    When would you put them on ? on my other models I would put the flaps down on the downwind leg, but I tend only to put them down on my Bobcat (smaller version) on finals
    www.letterkennymodelflyingclub.com
    www.jmaireland.com

  18. #2468

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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: Grodus

    So much for what I know. I have a NIB Rabitt that I thought would be too much for my F-120.[X(] I think i will just stick with the Super Bee and putt around at 155mph for 9 1/2 minutes. To each his own I guess.
    I am running the Rabbit on My Falcon 120. 8 flights now in 2 weeks and no issues what so ever. Unlimited vertical is cool and short take off. As long as you make all the necessary mods I do not see and problems. Power to burn is too much fun.

    Mav
    Love my Ultra Flash Merlin 140 and F22 Raptor P140 RX Multiplex Royal Pro 16

  19. #2469
    BaldEagel's Avatar
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    RE: Bob Cat Copy Falcon 120 Jet

    Crow braking can be very usefull for steep approach's into a restricted site especially if you can get the flaps over 75deg when they start to act as almost speed limiting brakes.

    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.

  20. #2470

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    RE: Bob Cat Copy Falcon 120 Jet

    Mav
    I actually bought the rabbit back in Nov and still havent decided on an airframe for it. I know the Falcon would be a lot more fun with it installed but the Bee is a pretty good match for it. My airfram is pretty light at 13.8 lbs with full UAT so it goes pretty good. If I dont have an airframe by the time my bee needs service, I might try the rabbit on it. It would be an easy change and no cg adjustment.

  21. #2471
    Vettdriver's Avatar
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    RE: Bob Cat Copy Falcon 120 Jet

    Had my first flameout on my Falcon.

    made it back to the runway old school carrier style.
    I was still turning into the wind as I touched down.

    Without any residual thrust it sure slows down in a hurry.

  22. #2472

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    RE: Bob Cat Copy Falcon 120 Jet

    ORIGINAL: Vettdriver

    Had my first flameout on my Falcon.

    made it back to the runway old school carrier style.
    I was still turning into the wind as I touched down.

    Without any residual thrust it sure slows down in a hurry.
    Vettdriver - Congratulations on getting her down safely.
    I have the latest Falcon 120 Pro (not started) and a Ram 750 in a box. There's a lot of info on this thread, some have done some mods and some others, I was wondering if you would mind posting the turbine you're using, the fuel tank and a brief rundown on the mods you have made?
    Thanks a bunch,

    booker

  23. #2473
    Vettdriver's Avatar
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    RE: Bob Cat Copy Falcon 120 Jet

    Booker,

    Mine is pretty basic.
    Turbine is a SimJet Sonic 8000 @ 17lbs of Thrust
    Retracts are Robart 710RS
    Struts are Robart 652 Offsets - 2 rights and 1 left
    Wheels & Brakes are from Tams
    Servos are Hitec 85MG's for the Rudders and Elevator, Futaba 3003's on Ailerons & Flaps and Hitec 82's that I had laying around for retract & brake valves.
    Fuel tank is a 64oz juice bottle
    CG is dead on 13 inches back from the leading edge at the fuse.
    The only mods to the airframe are epoxy reinforcement of the retract area and I routed out the servo locations and used the servo mounting covers from Hobby Lobby.

    Here's a video of what I believe was it's fifth or sixth flight.
    http://www.youtube.com/watch?v=QCbrZK8zziI

  24. #2474

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    RE: Bob Cat Copy Falcon 120 Jet

    ORIGINAL: Vettdriver

    Booker,

    Mine is pretty basic.
    Turbine is a SimJet Sonic 8000 @ 17lbs of Thrust
    Retracts are Robart 710RS
    Struts are Robart 652 Offsets - 2 rights and 1 left
    Wheels & Brakes are from Tams
    Servos are Hitec 85MG's for the Rudders and Elevator, Futaba 3003's on Ailerons & Flaps and Hitec 82's that I had laying around for retract & brake valves.
    Fuel tank is a 64oz juice bottle
    CG is dead on 13 inches back from the leading edge at the fuse.
    The only mods to the airframe are epoxy reinforcement of the retract area and I routed out the servo locations and used the servo mounting covers from Hobby Lobby.

    Here's a video of what I believe was it's fifth or sixth flight.
    http://www.youtube.com/watch?v=QCbrZK8zziI
    Hey thanks - Sounds pretty much like I have planned. I may try to get a little more fuel. That Ram is pretty thirsty, although probably won't be running it at fulll throttle very much.

  25. #2475

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    RE: Bob Cat Copy Falcon 120 Jet

    Can someone tell me what size strut is in KINGHOBBYS retract kit OR025-02205 Model 2205 (3/8 , 7/16 or 1/2 ?)


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