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Neuiport 17 (WWI)

Discussion in 'WarBirds' started by tvcasualty, Dec 27, 2008.

  1. tvcasualty

    tvcasualty New Member

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    Out of foam, out of motors, what's left to do when the in-laws invade?
    Work on old designs!!


    Been working on this one for a bit now and reworked a few parts in sketchup, specifically the lower wings, in which I thought the original problem was in why it crashed...
    However, after some taxi tests today I think the original problem might have been an aileron control wire coming undone! This would help explain the loss of control, but I'm not entirely sold.

    Anyway you guys asked to see it in foam so here it is:

    Aftermath of original maiden...

    Reworked:



    Looks pretty good, but so did the original, now I'm waiting for the wind to settle! Attached files [​IMG] [​IMG] [​IMG] [​IMG]
     
  2. 3DMON

    3DMON Moderator Staff Member

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    Sure is nice looking.
    I like your style, all your designs have a nice look to them.
     
  3. 7up

    7up Moderator Staff Member

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    Yea very nice! :shock:
     
  4. tvcasualty

    tvcasualty New Member

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    Thanks!
    Gonna try and hit the paint shop today with it, much too windy to try and fly it. My experience with bipes is that the wind HAS to be perfectly calm.
     
  5. Evil-Tunes

    Evil-Tunes Moderator Staff Member

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    That looks like A nice indoor plane what is the wing size/ Weight?



    E-T
     
  6. 66tbird

    66tbird Moderator Staff Member

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    That qualifies as coool :cool: And it reminds me to get back into designing airplanes! Area and weight would be interesting.
     
  7. tvcasualty

    tvcasualty New Member

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    Alright guys, I suck at bipes. No doubt about it, I can't even begin to explain what when wrong here.
    This time I couldn't even get the bugger off the ground. Low on the list is some video to get up of me trying to fly this today, but don't hold yer breath. :(

    I'll pull a weight for you guys incase someone knows the ropes with these kites, but I'm gonna shelf this one again. (I've been meaning to rework my hellcat anyhow, it'd be nice to have a phlat wing for it).

    In the mean time I've been working a few other models in the background, but the in-laws have taken over my PC room so progress has been much slower then I would have liked.
    More to come...
     
  8. kram242

    kram242 Administrator Staff Member

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    Well thats lame about the Neuiport, but its nice to know that you have some more in the background:)
    Let the Phlatprinter Run! Give your in-laws a set of ear muffs and send them back to bed :D
    JK
    Can't wait to see what else you are working on.
    Mark
     
  9. RC of the North

    RC of the North Member

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    Don't give up she's a beauty!
     
  10. Anonymous

    Anonymous New Member

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    CG problems?
    http://adamone.rchomepage.com/cg_calc.htm
    http://adamone.rchomepage.com/cg2_canard.htm
    http://www.geistware.com/rcmodeling/cg_super_calc.htm
    Just treat the bi-wing like a single wing, with the leading edge at the average LE location, and a wingspan of the total of both wings. In other words, if the top wing is 12" from the LE of the horizontal stab, and the bottom wing is 11" away, just input 11 1/2" into the calculator. Then, if the top wing is 27" and the bottom one is 24", just tell the calculator it's a 51" wing. So a 51" wing located 11 1/2" from the horiz. stab is the same aerodynamically as the 2 staggered wings of my example biplane.
    And your CG will be very far forward of where you think it ought to be - biplanes are like that.
     
  11. tvcasualty

    tvcasualty New Member

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    I will look into that, but unless the CG is IN FRONT of the aircraft (which is impossible) ALL the weight sits in front of the wing. The way it acts seems like a CG problem entirely, but unless I fill the small amount of space available with lead, I feel there is little more that can be done. intentionally I designed ALL the heavy parts to sit infront of the wing on this one becasue of the CG problems I've had w/ my SE5A.

    Best I can figure is that in those days the engines were so poor and produced so little HP that the harry edge of unstablibty was flirted with just to get enough lift to get them into the air with a reasonable abount of menuverability. :?
     
  12. tvcasualty

    tvcasualty New Member

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    This could also be the root of my problems.
    I guess it's worth giving another try, not a lot of work to reglue the struts, and then some time on a good simulator...
     
  13. tvcasualty

    tvcasualty New Member

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    It flew!

    Then I crashed it horribly...
    I think this would make a great indoor flyer, if you had a large enough arena, but at 31" it's so light that any slight breeze put this thing in a world of hurt. The wind softly took me mercilessly to the ground. I fought back pretty hard kicking that rudder as it tried to take me low over no-mans land, managed to get it going the other way, decided it ease back on the throttle and bring it down when it came for me again, it was too late too low to take any measurable action. -I'm sure this is why I crashed the very first time I tried to fly it now.

    My problems were mainly with the takeoff, with the 9x5 GWS prop it could have used a tad more thrust, but it was plenty quick.

    Since I broke my motor mount this one is going in the history books for me, this time for sure, but I'd love to see some others try this one out who have the luxury of nil wind conditions.
     
  14. tvcasualty

    tvcasualty New Member

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    Also, if one wanted to make this an indoor flyer, axe the carbon fiber rod, or get a much smaller dia one, and use a light weight lipo instead of an A123 pack. That will keep this under the 17 if not 12oz range. All of my weight was the battery.
     
  15. kram242

    kram242 Administrator Staff Member

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    Man that does stink! well at least you can always try the p-38 ;) (hint, hint)
    Wish I had the gear to try this one out I think it will be great when it does work it looks so cool and with some paint it would go over the top.
    Have you tried (in your redesign) to move both of your wings back a little so that you could get more weight to the front? (just a thought from reading the first few post)
    All the same that is what this forum is all about sounds like you are burnt out on trying and retrying, give it some time and let some of the other guys try it out and then you can come back to it with some new ideas. Thanks for a great plane that we can all work on and get in the air.(you have done the hard part now it seems to be just a matter of fine tuning)
    Mark
     
  16. tvcasualty

    tvcasualty New Member

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    Lightflight is currently out of the motors I think I want to use on that P-38 :(
    In the mean time I'm gonna try and get my hands on another motor mount (as I destroyed the one I was trying out in the nieuport) tomorrow from the LHS.

    So if all goes well, I'll have my F6F flying again tomorrow, with another model ready to phlat-print (I've redone that one as well w/ a phlatwing instead of the original hotwire).

    lol I originally wanted to use this now broken down motor in my F6F, but then I had these ideas on how neat another biplane would be, knowing darn well the trouble I had with the last one...

    So don't feel too bad for me, that Corsair I've got cheered me right up cause I had a chance to get that out again today. That plane flys so nice! :D
     
  17. kram242

    kram242 Administrator Staff Member

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    So are you saying you have another biplane in the works!?
    Mark
     
  18. tvcasualty

    tvcasualty New Member

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    :mrgreen: Not quite!
    Got my pp up again last night, almost as hard keeping P-Cs working as it is to keep airplanes flying...
     
  19. tvcasualty

    tvcasualty New Member

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  20. tvcasualty

    tvcasualty New Member

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  21. kram242

    kram242 Administrator Staff Member

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    :mrgreen: You rock Erik!! Thank you for making this up I know it was a lot of work to rush home and make this happen, I only wish we had the time to do the build for this one on the spot! We are thinking that this will really make a good PhlatLAB show!
    Erik there is so much we want to thank you and Lauren for that words will never be able to fill. You guys are the greatest and Trish and I feel that our friendship grows so much with every show. We know that we are building a lifelong friendship that will forever be AWESOME! :D
    You guys are the best!
    Mark and Trish
     
  22. tvcasualty

    tvcasualty New Member

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    Thanks Mark, we certainly had a blast!
    I seen a Neuiport at the show w/ out a head rest, I think I'm going to offer another version w/ out it so it will be an easier build. Got to love these single sheet foamies, maybe you can get yours to fly?? :mrgreen:
     
  23. kram242

    kram242 Administrator Staff Member

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    I bet I could, I know if you designed it it will fly :D I did get a few of the blue wonders while I was there so I was thinking of using this what do you think?
    Mark
     
  24. tvcasualty

    tvcasualty New Member

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    The trick is to get it to balance, and there is not a lot of room in the nose for this little guy to put all the heavy parts. The blue wonder will have plenty of power, but I wonder about it's weight! ;)
     
  25. kram242

    kram242 Administrator Staff Member

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    There's only one way to find out! :mrgreen:
    I think I will just have to try it.
    So you are saying that you need a heavy motor in the front? I do have a park 300 that does have more weight to it. What are you using?
    Mark
     

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