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  1. #3901

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    RE: Bob Cat Copy Falcon 120 Jet

    Got a pic of an Orbit Clunk some one.

  2. #3902

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    RE: Bob Cat Copy Falcon 120 Jet

    Dear Joe Flyer.

    I have a question regarding the Prolink gear system that you installed in your Falcon. Did you use the rail mount or the firewall mount retract for you NLG. Thank you in advance.

    ****

  3. #3903

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    RE: Bob Cat Copy Falcon 120 Jet

    This saddle for the forward wing tube allows the tank to go all the way to the bottom of the fuselage. and this engine mount allows fro a stable platfotm for the turbine. I am going to use a Dubro 50 oz tank with another 16oz round tank on top of it. With the UAT i will have 70oz.

    Mitchell
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  4. #3904

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    RE: Bob Cat Copy Falcon 120 Jet

    Pepperpete

    The video or link of the clunks in flight

    A link please

  5. #3905

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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: ****sheee

    Dear Joe Flyer.

    I have a question regarding the Prolink gear system that you installed in your Falcon. Did you use the rail mount or the firewall mount retract for you NLG. Thank you in advance.

    ****
    I have Robart retracts with Prolink struts in mine. The nose retract is rail mount. I made all new formers and mounts and designed it so that the nose gear would be completely inside the fuse when in the up position. I'm sure you could make either type of retract work. If you use the original mounting it would have to be rail mount.

    Joe

  6. #3906

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    RE: Bob Cat Copy Falcon 120 Jet

    hello
    I have a falcon-120 with a pusher prop . i am using a 14*7 pusher prop 3 bladed. i use a os 1.08 engine on it . i have no problem with prop hitting the runway on rotation

  7. #3907

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    RE: Bob Cat Copy Falcon 120 Jet

    Hello

    I suggest you use a os 1.40 rx with pump on it and then u can use a 15*10 or suitable 3 bladed propeller on it . exceeding 15 inches will be tricky on landings and takeoffs. you may find yourself always trying for 3 point landings .

    you can watch my first flight on you tube . just type jitendra gurjars falcon-120 test flight

  8. #3908
    rjbob's Avatar
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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: BaldEagel

    Sorry to dissagree but any over rating is just the new 100%.

    Mike
    Maybe you can get a job rewriting a ton of operating manuals for full scale jets and turboprops.
    Alaska Bob - "Can I fly one of your jets? I crashed all of mine."

  9. #3909

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    RE: Bob Cat Copy Falcon 120 Jet

    thanks for video!
    Is it an ASP or O.S engine?


  10. #3910

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    RE: Bob Cat Copy Falcon 120 Jet

    .

  11. #3911

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    RE: Bob Cat Copy Falcon 120 Jet

    well no its a os 1.08 engine

  12. #3912

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    RE: Bob Cat Copy Falcon 120 Jet

    Can anybody tell me what they used for neutral position on the elevator. It looks to me like it would be set flat on the bottom.

    Mitchell

  13. #3913

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    RE: Bob Cat Copy Falcon 120 Jet

    Mitch
    That is a good starting point for the Elevator. I found that I had to give it 3 to 4 clicks of up trim on the first flight. That may have just been a balance thing though

    Good Luck
    Joe

  14. #3914
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    RE: Bob Cat Copy Falcon 120 Jet

    Mitchell

    Safer to have it level on the upper surface of the tailplane then at least you have not got to hold on down after a to enthusiastic take off, that's how I had mine set and it did not need any up trim in flight, but I did have my turbine set level.

    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.

  15. #3915
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    RE: Bob Cat Copy Falcon 120 Jet

    BaldEagel....

    My Jet is more or less done, but it's too cold to fly. (and get my waiver) By any chance, can you post a pic of the elevator? I understand that guys are making the top surface flat, and it makes it look like it's going up... but I'd like to see how much.

    Thanks
    Tony
    Owner of A&L Motorsports, LLC

  16. #3916
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    RE: Bob Cat Copy Falcon 120 Jet

    I don't have the Falcon any more, I was offered silly monies for it and it went to one of our a club members, but what I did was put a straight edge on the tailplane and moved the elevator up to the straight edge to get it level, I still have one NIB and am very tempted to get into flying condition with my JetsMunt Merlin 90 should be fun with that much power.

    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.

  17. #3917

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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: Mitchell-RCU

    Can anybody tell me what they used for neutral position on the elevator. It looks to me like it would be set flat on the bottom.

    Mitchell
    Flat to bottom is way off. Flat to top using a strait edge.

  18. #3918
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    RE: Bob Cat Copy Falcon 120 Jet


    ORIGINAL: BaldEagel

    I don't have the Falcon any more, I was offered silly monies for it and it went to one of our a club members, but what I did was put a straight edge on the tailplane and moved the elevator up to the straight edge to get it level, I still have one NIB and am very tempted to get into flying condition with my JetsMunt Merlin 90 should be fun with that much power.

    Mike

    OK... thanks.

    So... anyone who has one flying... can you please post a pic of the elevator?
    Tony
    Owner of A&L Motorsports, LLC

  19. #3919

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    RE: Bob Cat Copy Falcon 120 Jet

    Ok Just finishing up my Falcon. I have a 90oz tank and a RAM 500. Are you guys balancing it with the uat full and the fuel tank empty?

    Mitchell

  20. #3920
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    RE: Bob Cat Copy Falcon 120 Jet



    This is what my elevator looks like at neutral.

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    Dave Penchuk
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    613 795-6076
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    IMAA Chapter 217
    GiantScaleCanada.com

  21. #3921

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    RE: Bob Cat Copy Falcon 120 Jet

    Dave that is a lot of difference from flat on bottom. Do you have any down thrust in your engine? How did you balance yours?

    Mitchell

  22. #3922
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    RE: Bob Cat Copy Falcon 120 Jet

    Balance with full UAT
    www.letterkennymodelflyingclub.com
    www.jmaireland.com

  23. #3923
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    RE: Bob Cat Copy Falcon 120 Jet



    Yes I am using 0 degrees on my turbine, but that has no bearing on my neutral elevator setting. If I was to fly at any speed, and kill the engine, this is where the elevator neutral would be. You should have a look at the following link to my earlier description of how I setup my turbine at 0 degrees though. It really works great for the following reasons.

      [*]Does not burn the grass at my field[*]Does not need the longer nose gear to allow rotation. Since at take off with full power on the turbine the nose is not being pushed into the runway, I have a nice smooth rotation at about 60’.[*]With the shorter nose gear, I have only a slight positive incidence and not the normal tendency to bounce on landings. I expect that the reflex also helps on this.[/list]

      http://www.rcuniverse.com/forum/fb.asp?m=10143421

    Dave Penchuk
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    613 795-6076
    President
    IMAA Chapter 217
    GiantScaleCanada.com

  24. #3924
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    RE: Bob Cat Copy Falcon 120 Jet

    ORIGINAL: f6hlct



    This is what my elevator looks like at neutral.


    Thanks !! As they say... a picture is worth a 1000 words.

    So, the way I see it is... "The top elevator control surface should be perpendicular to the bottom elevator fixed surface."

    Now I can finish rigging my Falcon.


    FYI... I also have my engine set at 0 deg, on your recommendation.


    Tony
    Owner of A&L Motorsports, LLC

  25. #3925
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    RE: Bob Cat Copy Falcon 120 Jet

    Are the machined engine mounts available for the Falcon? If so, where and what is the price?
    Thanks,
    Jim


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