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Post by Legot on Jan 17, 2010 21:23:25 GMT 1
Hey Everybody! i got my ailerons done last night and they work beutifully. havnt flown it yet or taken pictures, so ill ge a vid an pics on soon. My sc is now 5 channel with single servo flaps, dual servo ailerons (rudder, elevator), brushless park 250, and spektrum AR500.
The only reason I dont have flaperons AND flaps going at the same time is because I only have a DX5e... Anyone have either a DX7se or a JR x9503 for cheap?
~Legot~
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Post by greedyg76 on Feb 4, 2010 17:12:04 GMT 1
Hey Legot -
Let's see those pics! That is basically the same set up that I am knee deep into now, single servo flaps and dual servo ailerons. I figured the ailerons are constantly moving so they could use a dedicated servo out on the wing on each side. The flaps I'll only use on landing a take off so one servo in the middle of the wing with flexible pushrods to the flaps should work.
I'd like to see your set up
G
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Post by Legot on Feb 7, 2010 5:55:09 GMT 1
sorry i havnt put the pics up yet...our cameras ant working at the moment.
in the mean time, I have two SG-90 servos for the ailerons, and one random mystery 3.47 gram servo on the flaps. once I try it a couple more times, I might switch the flap servo to an SG-90. Im relly liking the SG-90 servos, I got em from hobbypartz for like $2.77 and there nice, cheap, quiet, accurate, and strong.
what servos are you using for yours?
Ill try to get those pics up mabe tommorow.
~Legot~
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Post by Legot on Feb 10, 2010 4:09:22 GMT 1
wow...nevermind...I need to crop these pics...
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Post by Dillzio on Feb 10, 2010 12:24:48 GMT 1
Download "web resizer" for compressing or resizing jpegs, it's awesome! It just saved me 3 gig from my hard disk last night.
I'm interested in making Flaperons, but I've read that they can cause a "tip-stall" on landing, causing the plane to roll over into the ground. Apparently, by having seperate flaps inset it eliminates this problem.
I was thinking of making ailerons that didn't go as far to the tips of the wings as they normally do to eliminate the tip-stall problem. As long as the ailerons are wide enough and I have enough deflection I'm thinking they should still do well.
Any thoughts?
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belem
Squadron leader
Posts: 210
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Post by belem on Feb 10, 2010 20:59:25 GMT 1
I have flapperons on my cub. Only time I had trouble with them was landing into a strong headwind. Since you don't really need flaps on the cub when landing with a strong headwind....I just don't use them in that situation any longer.
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Post by greedyg76 on Feb 19, 2010 19:41:06 GMT 1
LEGOT -
Im actually using old servos from an e-flite Helicopter. They are a bit smaller than your standard 9g servo but they seem to work ok. I'll edit this post when one fails in flight ...
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Post by Legot on Feb 21, 2010 2:26:35 GMT 1
I hope thos servos work out for you, but for now, here are the four three pics that i've got arround to uploading. Just over four inch wide flaps, 3 1/2 inches deep. 13 inch Ailerons 2 inches deep. and they make this thing fly awsomely! The flaps dont change much of the pich, si I can just flip the flap swich without aditional elevator input, and the ailerons make it act completely different from the stock rudder only!    |
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Post by Legot on Feb 21, 2010 2:30:46 GMT 1
 and the full pic (WoW I need to repaint!) And about the flaperons, I wouldnt trust them, just because I'm me. BUT, if I ever get a programmable radio, I would like to try my flaps at the same time as flaperons, sure it might create an eppic tip stall, but if it doesnt then it would proveide superb lift. When I started cutting for my flap I had flaperons floating around in my head. I beleive that since my flaps are so deep into the wing, they will simply act as regular flaps on a super high lift airfoil. Does that make sence? or is that only in my head that it does? Heres a picture I made roughly explaining the build of some flaps.  Mine should eliminate the tip stall factor, while adding the benifits of both flaps and flaperons. |
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Post by Dillzio on Apr 29, 2010 16:06:22 GMT 1
Holy crap Legot! The gaps between your ailerons and the wing is huge, and between the ailerons and the flaps. I thought that if air can easily get from the top of the wing to the bottom it makes it fly like crap? have you sealed the gaps with tape or anything?
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belem
Squadron leader
Posts: 210
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Post by belem on Apr 29, 2010 18:46:29 GMT 1
You can't run flapperons with an AR500 and a Dx6i. I THINK you can do it with a Dx7 but it requires a lot of programming. With a 6-channel RX it's simple.
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Post by Legot on Apr 30, 2010 1:54:23 GMT 1
Yes....I dis seal it with clear tape, but now I'm redoing my ailerons smaller, with more scale looking flaps.
I guess I'll just have to wait for a new radio then.
~Legot~
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Post by helikiwi on Apr 30, 2010 11:48:23 GMT 1
looking good - here's some pictures of what I did. I have 2 servos for ailerons and 1 flaps I programed the ailerons to come down a little bit with the flaps - like a R/STOL kit on full scale cessnas - it slowed down to a crawl but dropped a wing easily, and the rudder had very little authority at that slow speed to pick up the wing - so now I have the ailerons raise a little bit with full flap only - no wing drop and I can come in steep Attachments:
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Post by helikiwi on Apr 30, 2010 11:51:51 GMT 1
and another picture from different angle Attachments:
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Post by Legot on May 1, 2010 2:20:38 GMT 1
I got my box from Tower hobbies today, for the ailerons on the new wing, now I'm just wating for my hobbypartz box, which suould be here tomorrow.
From Tower I got some 90 degree belcranks, 12 linkage stoppers, and a 48" sulivan flex cable
from hobbypartz I should get two 80mm wheels, control horns, and a covering of a (top secret) color.
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