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All Forums >> RC Airplanes >> Profile and Fun Flying Planes >> RE: Ann is building the burito
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RE: Ann is building the burito - 3/22/2004 3:26 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		I have a problem here

instructions call about gluing a piece of carbon fiber to join the trailing edges, this is not in the box and I can't find that in the workshop. should I go to buy or may I replace with what I found.

I found this, and i think salmonbug call that fiberglass, is that the same?

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< Message edited by wife cleaning balsa dust -- 3/22/2004 7:28:18 AM >

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RE: Ann is building the burito - 3/22/2004 4:45 PM   
blue ice


 

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Status: offline 		I have not built this kit but that is probably for putting in the middle of the wing after it is assembled. You ca the cloth on for strengh. The carbon fiber should be some black looking stuff like what you have in the middle of the fuse.

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RE: Ann is building the burito - 3/22/2004 4:58 PM   
Quicker



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Status: offline 		The carbon fiber strip is a black strip (looks like black cloth) about 1/4 inch wide and about 25 to 30 inches long. You need to cut 2 10 inch long pieces out and glue that over the joint of the 2 23 inch long spars. A 1/4 wide by 1/8 thick by 10 inch long hardwood piece is glued on top of that.

I did mine by taking the CF strip and laying on top of the joint. I then put the hardwood on top of that and clamped it together (MAKE SURE IT'S PERFECTLY STRAIGHT!). I then took my extra thin CA and wicked it in to glue the assembly together. Just take the thin CA and let it run into the cracks of the joints. I think you should really use CA glue for this part!

< Message edited by Quicker -- 3/22/2004 7:59:20 AM >

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RE: Ann is building the burito - 3/22/2004 5:17 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		is that black strip in the box?

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RE: Ann is building the burito - 3/22/2004 5:19 PM   
Quicker



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Status: offline 		Yes. Mine was folded up with the wood. Look around the shop. It might have fallen on the floor....the kids might have grabed it thinking it was a ribbon, it might be under something.

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RE: Ann is building the burito - 3/22/2004 5:26 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		ok

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RE: Ann is building the burito - 3/22/2004 5:44 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		i empty the workshop garbage container! , I searched à lot everiwhere, I couldn't find it.

I fully understood what to do, may I substitute with the white stuff I showed above?

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RE: Ann is building the burito - 3/22/2004 5:52 PM   
Quicker



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Status: offline 		No....that is completely different stuff. I think we need some more help here. Try sending a PM to Swany and ask his advice. Since you said your husband had extra 1/4 square hard stock, you might be able to substitute that instead of the thin hardwood and CF strip. It would require cutting the spar notches out a little on the inner ribs, though.

If you can wait, maybe he can mail you a new CF strip.

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RE: Ann is building the burito - 3/22/2004 5:55 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		I can't wait, The bird must be finish in 3 weeks I will go by gluing spruce sticks and enlarge the notches (I understood what you mean)
this should work fine don't u think so ?

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RE: Ann is building the burito - 3/22/2004 5:58 PM   
Quicker



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Status: offline 		I think you'll be fine. It looks to me like Swany was trying to save weight by using the CF strips and thinner hardwood. It's gonna add a few ounces, but the 46 will be able to handle it.

Cover it and your hubby will never know

< Message edited by Quicker -- 3/22/2004 8:58:34 AM >

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RE: Ann is building the burito - 3/22/2004 6:10 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		I think he will be able to see it when he will open the radio access hatches
I will explai this is my personal female touch to improve the design !!

before I go I will post a pics of everithing before gluing.

I have a other concern, there is something I don't understand on the plan.
on the main spars (the one I am going to reinforce) there is a shadded aera in the center.
I first tough this shaded aera was showing the position of the reinforcement strip, but it's much more longer than 10 inches

what is it?

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RE: Ann is building the burito - 3/22/2004 6:15 PM   
Quicker



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Status: offline 		Well, I'm at work right now, so I can't look at the plans, and I don't remember. I'm here for another 7 hours

Somebody else?

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RE: Ann is building the burito - 3/22/2004 6:22 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		Ok I am ready to go

here is a pic showing two 10 inches long 1/4 spars made in the strongest wood I could find (I think it's from a tree called 'pin" in french)
I plan to glue them in the center of each 1/4 balsa spars assembly with epoxy
I also draw arrows on the ribs showing the notches I plan to enlarge to 1/2 inch total depth


GO ?
you need to have a close look on the pics to see my arrows

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< Message edited by wife cleaning balsa dust -- 3/22/2004 10:23:17 AM >

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RE: Ann is building the burito - 3/22/2004 6:28 PM   
Quicker



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Status: offline 		Looks good.

You sure you haven't built a plane before?

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RE: Ann is building the burito - 3/22/2004 6:31 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		no, never, but I live in airplanes and building project since 7 years......
Salmonbug is crazy !!!

let's go !

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RE: Ann is building the burito - 3/22/2004 7:29 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		i align all the ribs on the spare. the main spar is exactly at the position showed on the plan, but the trailing ege spar is aproximatly 1/4 inches backward of the position showed on the plans, do I have to cut the ribs to correct ?

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RE: Ann is building the burito - 3/22/2004 7:30 PM   
Quicker



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Status: offline 		NO! Swany said this was a misprint on the plans. Just leave the ribs as they are and glue on the trailing edge.

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RE: Ann is building the burito - 3/22/2004 7:34 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		ok, thanks a lot !, I think I am ready to start to glue. I corrected a minor mistake. on the pics where I show the ribs I plan to enlarge the slots (the ribs with arrow) one of the ribs is not the correct one because it doesn't have the notches for servo rails. I cuted in the good rib

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RE: Ann is building the burito - 3/22/2004 7:40 PM   
Quicker



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Status: offline 		Good thing you caught that....I didn't notice.

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RE: Ann is building the burito - 3/22/2004 8:41 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		I have a problem here. I am looking ahead and discover that I have to glue stuffs called "shearwebs", the problem is that on my burito, the main spars edges aren't parallel with each other, so ther will not be a good contact, If i fill the gaps with glue this will be heavy and there is a risk maybe to go over the maximal structural take off weight, or maybe be unable to rotate the plane !

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RE: Ann is building the burito - 3/22/2004 9:40 PM   
Quicker



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Status: offline 		How far out of parallel are they? Mine were a little out of square, but not too bad. I clamped the sheer webs to the spars and they formed a nice fit. I wicked in a bit of thin CA and they held nicely.

Can you get a close up picture with a sheer web pinned in so we can see?

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RE: Ann is building the burito - 3/22/2004 9:44 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		I am not at placing the sehar webs yet, I was expecting.........
in fact if you look at the notches made for the spars in the ribs, you can see that the spars edges wont be paralel once fit

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RE: Ann is building the burito - 3/22/2004 9:47 PM   
Quicker



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Status: offline 		Yep. The balsa that is used is flexible enough that it wasn't an issue.

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RE: Ann is building the burito - 3/22/2004 10:22 PM   
PROSIS1


 

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From: Kampenhout, BELGIUM
Status: offline 		because of my lack of building skills, I made a modification to the building sequence.
normaly, you glue the trailing edge to the ribs and then sand them to obtain the correct curvature. at my first atempt to sand, my sanding tool hited a rib and unglued it from the trailing edge. this is very fragile. to make it stronger, I lifted the back of the wing a bit, squeezed both upper trailing sheetings (wing is upside down on the board, so they are the upper ones), weighted the assembly and glued it in place on the ribs and the trailing edge with thin CA) in fact there was no sanding required on that side in my opinion so I have been able to glue it imediatly

this make the aera to sans more strong and rigid

hope I didn't made a mistake

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RE: Ann is building the burito - 3/22/2004 10:25 PM   
Quicker



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Status: offline 		I'd like to see a pic of that. I used a nice new sharp blade to cut it to the proper angle, then sanded it smooth.

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