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  1. #601
    Carsten Groen's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    @Kasper:
    You know I will always trust you my planes , but you will have to surrender the Hawk to me in a few days

    @Scott,
    all inputs are more than welcome
    (the 6cm throw on elevator, is that measured at leading or trailing edge ?)
    I assume that neutral is when the trailing edge is on the dividing line of the elevator cover ?

    I have put the CG in the middle of the two numbers given by Tomahawk on the CD (between 310 and 325 mm), hope that will be ok...
    It took more or less exactlly two months to finish it for painting, and yes, I have been quite busy with it, but if this thread hadn't existed, or if I had not had all the super help from you guys, it would not have been possible (at all!). So a big thank you all [8D]
    The last week before Kasper got the plane for painting, he was staying here at my house for 4 days, and he helped A LOT (50 hours or so) to make the canopy/cockpit, which was a lot of work, and some things had to be figured out along the build. Luckily Kasper is a real pro builder (as well as a super painter and pilot), so I did get a lot of help with that!

    @MarcS: It's your small gadgets that puts the extra touch on the install, all these little things that you perhaps could do without, but using them makes it soooo much more nice and easy !!
    Carsten Groen

  2. #602
    Selleri's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Congrats mate, you'll need to bring your trailer to the field next time I come for a visit!
    Sverrir G. - Icelandic Volcano Yeti

  3. #603
    jetpilot's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Hey Carsten.
    the 6cm throw is leading edge and yes the trailing edge is on the divider.
    I thought this sounded like a ton of throw but I watched video of it last night and the elevator is pegged the full throw on landing holding the wheelies!
    Ill go plug in a wing and get aileron throws.
    Scott
    Scott Marr

  4. #604
    Carsten Groen's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    @Sverrir,
    no problem, just move your butt over here and we will go flying

    @Scott, thanks a lot, I will use that as a starting point for the elevator, although it is a bit more than Tomahawk writes (+46 / -35 mm).
    When seeing Victor Calvo's videos on youtube of the hawk, there is a lot of movement when landing...
    How mch expo are you running on ail/ele ?

    Carsten Groen

  5. #605
    jetpilot's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Yea, it uses all the up on holding the nose on landing. Not needed for anything else.
    Im using 40% expo.
    You got me hard at work on Hawk 100 again! inspired to get going!
    Scott
    Scott Marr

  6. #606
    jetpilot's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    watch this short video:
    starts at :22 seconds
    http://www.youtube.com/watch?v=PndRn...layer_embedded

    watch this one at 9:30 . shows elevator pegged
    http://www.youtube.com/watch?v=Bwh5D5v-nao&feature=plcp
    Scott Marr

  7. #607
    Carsten Groen's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    @Scott, had any chance to check ail movement ?

    Kasper just delivered the Hawk to me (I had to threaten him to surrender it , well almost)
    The painting/weathering is super, nothing less (even my wife fell in love with the plane immediatly)!
    This is not the last plane he has painted for me [8D]
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    Carsten Groen

  8. #608
    schroedm's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    WOW - she's a big old girl Carsten!!!!


  9. #609
    schroedm's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    ORIGINAL: schroedm
    WOW - she's a big old girl Carsten!!!!

    eeeeeeek!!! The Hawk mate, the Hawk!!!!! [8D] [8D]

  10. #610
    Carsten Groen's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5


    ORIGINAL: schroedm

    ORIGINAL: schroedm
    WOW - she's a big old girl Carsten!!!!

    eeeeeeek!!! The Hawk mate, the Hawk!!!!! [8D] [8D]
    You just saved that right on the line
    (she smiles here behind me, so think she will not be angry with you at JetPower )
    Carsten Groen

  11. #611

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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    good morning carsten and marc wich turbine do you use ? does a 18 kg should be ok? or does it need more power ?
    thanks
    nico
    ( carsten i love your painting congratulation )

  12. #612
    schroedm's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Hi Nico,

    160 = will fly ok and help stay under 20kg
    180 = will fly nicely and should stay under 20kg
    200 = will fly superb but will be over 20kg

    If you want to compete then it will need to be a 160/180 and built VERY lightly. If it is for normal flying then go for a 200 class turbine and add all the goodies you want

    Rgds
    Mark

  13. #613

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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    thanks for your answer Marc , i will take a 20 kg turbine .
    nico

  14. #614
    Carsten Groen's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    The Hawk has flown
    All went well, despite shakin knees I used the throws from the CD, as Scott said, the elevator needs more throw, and the ailerons also. I will have to play a little with that.
    Gear all worked perfect, I have adjusted the setscrew about 7 mm out from the bottom, this seems to give a perfect "sit" on the ground.

    More pictures/videos etc when I get on a better network, for now just a picture of the proud owner and his plane

    Thanks for all your help and support guys!

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    Carsten Groen

  15. #615
    jetpilot's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Whoohoo!
    That has to be a record!
    Great job!!
    I went into my building room and barely have come out because of you!!!
    Stayed til 4am two days in a row!!
    Trying to finish my 100!
    I'm sorry I didn't get the aileron throw, but I knew it was a lot. Lots of throw and lot of expo is how I like it. Not so much throw on rudder though.
    Tell us about flight.
    How was weather? Any wind?
    How was landing?
    Your CG good?
    Doors stayed closed?
    Landing?
    Power?
    Scott
    Scott Marr

  16. #616
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Carsten well done on your maiden and superb build, glad all went well and look forward to chatting at jetpower (if your going) - be sure to say hi, I'm in the same place as last year

    marcs

  17. #617
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Great job Carsten. Beautiful plane.
    Bob-O
    I Crashed All My Planes, Can I Fly Yours

  18. #618

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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Carsten you are a damn legend! I'm now feeling even more like a bloody snail with mine still sitting well fixed the bench.

    Congratulations mate - amazing!

    Looking forward to the nuts and bolts as per Scott post.

    Scott I thought i was crazy at 2 x 1.00am sessions in a row!

    Well done lads - I need to finish my 1.9 Futura in the next week or so to get back to the Hawk.

    cheers,






  19. #619
    Carsten Groen's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Thanks again guys [8D]

    @Scott:
    The flight went well, the plane flies very! slow . We had around 30..40 km/h wind at maybe 25 deg on the runway.
    No bad tendencies, slowed it down to a crawl, the plane just gently lowered the nose and kept flying.
    Landing was ok (for the first landing ) I will upload some video in a week, currently at a flyingfield for the rest of the week. It is quite noseheavy at the moment, the CG is set between 310 and 325mm as per the instructions on the CD ( it dumps the frontwheel pretty fast when I push the tail down and let it go)
    As the whole flight was not that fast, the doors stayed closed all the time, if there will be any problems when going fast I still don't know, but so far it looks perfect. The gears worked perfect too (I have a single JetTronics valve only), I use a Festo restictor on the gear-down line so it doesn't slam when extending. The valve opens fully in the other direction (so the release air when doing gear-up can escape without restriction)

    The plane needs a P200 in my view, it takes a lot of power when just flying around doing nothing special, I found myself above 1/2 all the time, and quite often at 3/4 or full power. When going to idle, the plane stops very nicely in the air

    @MarcS: Oh yes, will be at JP again, I'll come by, and if I see you in the "brennkammer" I'll buy you a couple of beers [8D]
    Carsten Groen

  20. #620
    schroedm's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Great stuff mate! See you at Jetpower.

  21. #621

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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Congrats Carsten! Videos next!

    Reuben

  22. #622
    Selleri's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Congratulations mate, can't wait to see the rapidly moving image file with sound!
    Sverrir G. - Icelandic Volcano Yeti

  23. #623
    jetpilot's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    The jet flys amazing in calm conditions but can benefit from a gyro if it's windy. Making them as heavy as possible helps.
    Good to hear the gear work with one valve. I have seen so many not!
    Let me know if your interested in my gyro setup. I really like the JR 370 A.
    Scott
    Scott Marr

  24. #624
    schroedm's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5

    Scott, I think Carsten has gone the full monty 3-axis I-gyro route!

  25. #625
    Carsten Groen's Avatar
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    RE: Tomahawk-Design Bae Hawk 1: 3.5


    ORIGINAL: schroedm

    Scott, I think Carsten has gone the full monty 3-axis I-gyro route!
    Not mounted yet though
    Carsten Groen


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