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GeeBee Pylon Racer like corsair v-tail mixed plane(with build pics/plans)

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GeeBee Pylon Racer like corsair v-tail mixed plane(with build pics/plans)

Old 09-27-2008, 02:56 AM
  #1  
GreenAce92
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Default GeeBee Pylon Racer like corsair v-tail mixed plane(with build pics/plans)

Alright, well i love weird looking airplanes so i decided to create a couple different planes for the contest. Most are like the Crimson Skies airplanes, im going to work mainly with the odd looking airplanes but my main focus is somewhat speedy(only like 60mph) and be very aerobatic and most of all cool lookin.

So ive decided to do a twin rear wing, canard pusher bird. Since i have a small prop on the 2409-12 like a 4 or 5in prop, i have to make the bird thin and sleek. It will have big over wings, and little wings under, then 2 forward canard wings. Still wondering how big it all will be. No plans for this bird, not even sure if it will be a success since i suck at canards, but the point here is that its cool lookin.

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Old 09-27-2008, 04:22 AM
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Well just built a simple canard for testing out canards with, ive got several experiments to try out so this will be my test bed.

K so this canard did not do too well. Oh well... going to go and build a profile canard plane and see if i can get one to work and see which are best control surfaces.
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Old 09-27-2008, 09:42 AM
  #3  
CHELLIE
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Those Planes look Neet GreenAce It does my Heart Good to know that you like PINK PLANES

Just Kidding, Chellie
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Old 09-27-2008, 02:21 PM
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Thanks! Yeah unfortunately canards are not my strong suit, so i will have to see, although i do plan on building some racer type planes, still got the swordfish but im runnin low on foam, plus my powerplant isnt really for a slow flying biplane. So gotta come up with some cool birds to build.
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Old 09-29-2008, 10:56 PM
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Hey Ace,
Research done a few decades ago indicated that canards like the cg to be on the main (rear) wing usually ahead of 25% of cord length. In most cases the canard (front wing) is used for elevator and moves the trailing edge down for UP pitch of the airframe and up for DOWN pitch of the airframe. The most notable difference in flight is a canard resist stalling because as the stall begins the front wing looses lift first and that allows the nose to drop and causes the main wing to gain lift again. Most flyers say it is almost impossible to do snaps and such type of aerobatics because of this. That's not to say that it cannot be done but most times it's not pretty. Also in most cases it is harded to perform hi alpha manuvers because of the anti-stall effect of the canard.

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Old 09-30-2008, 01:26 AM
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wait wait, i thought that canards are known for high alpha flight?
examine....

ok so its not a real canard plane, although it still is cuz the forward canards, but yeah, they said the F18 is good for high alpha flight...
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Old 09-30-2008, 04:10 PM
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Your exactly correct, It is not really a canard. Actually closer to a Delta wing. And as I noted it is not impossible but it is harder and not as "pretty". True canard jets are able to do these things because of the high power to weight or thrust to drag ratio. Canard jets with thrust vetoring have no trouble at all but think of the complications in setting up those types of options on electric R/C models. Ask Chellie about the planning and testing she did with thrust vectoring in just pitch control. I said before you will never hear me say "it can't be done" or "that's impossible". I have been told that too many times to believe it. But I will say it won't be easy and it may be costly.

Charlie
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Old 10-01-2008, 12:52 AM
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lol yeah like 10servos per plane like rcpowers.... jeez i think i only have 4 total working servos, wait no make that 5 lol
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Old 10-01-2008, 03:03 AM
  #9  
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Not to threadjack but I've been thinking Canard for a long time I built one and because of a stupid mistake I stripped it. I had the canard angle wrong ):

Now ya'll have me thinking delta with the LEXs being movable.
I haven't built a plane that got wrecked on it's maiden in a few months. I'm overdue (:
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Old 10-01-2008, 03:09 AM
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LOL poor guy, your F18 looked hot, but then i heard you had a little owie problem...

im not too good with canards either, i know now to make them at best tail heavy because at least they will fall tail first kinda stall out into the ground, but when its forward heavy those little wings cant hold up too well... thats just my thought
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Old 10-09-2008, 03:55 AM
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Ok, ive finally settled down and decided to do the bird below called Skid-X, little challenging but it'll do me good. Then i will work on my swordfish and the 3D trainer but need to sharpen my SU skills first. pic of bird.

keepin the other pic down there for motivation
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Old 10-23-2008, 12:06 AM
  #12  
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Almost ready to unfold and make plans
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Old 10-23-2008, 12:45 AM
  #13  
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Huuraayy!! shes done!!!
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Old 10-27-2008, 11:38 PM
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Well ive gotten the stuff laid out and what not, so im going to build it pretty soon, got my esc plus 4 servos in im really happy for that. ready to build pretty much just gotta do final touches. heres a card model i built. also im doing 2 of these, my original version(which many claimed would not work due to CG problems) and then the one posted below.
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Old 10-30-2008, 05:33 AM
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And some build photos.
Yeah the cowl and the whole body wasnt the best, it started curving and not going straight, so i decided to have a downward pointing cowl i guess ???

ahh well ya get what ya get plus its a prototype but its what i designed though oh and im going with the forward swept wings and they will be gulled too
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Old 11-09-2008, 01:23 AM
  #16  
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Stop amazing me Ace :p
what program are you using for the plans?
--pvt
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Old 11-09-2008, 03:05 AM
  #17  
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Just using sketchup and the good ol' unfold tool
oh i finished this bird, did not fly because of 2 things, one was the wings the angle of attacks on them were wrong, two its too dang stubby and fat... im doing a second version though
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