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RE: Black Magic VF3 Build Thread - 6/2/2009 5:40 PM   
jrpav1


 

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From: New Milford, CT, USA
Status: offline 		Regarding the vacuum seal issue with wing tubes: I drilled a very small hole in the center of the wing tube (1/16") and a 1/8" hole in the center of the wing socket. The holes are exactly on top when the wings are installed. Put your wing tube into the wing with the hole on top, slide into the fuse and mount your other wing. No trapped air and the holes don't seem to affect affect strength. If you'd rather not drill holes in the center then just put 2 small holes in the wings (on the bottom of the wings) through the tubes like you would do if you were using screws at the end of the wing tubes to hold the wings on.

John Pavlick
Team Black Magic, Tech-Aero Designs



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RE: Black Magic VF3 Build Thread - 6/2/2009 7:20 PM   
rcpattern



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Status: online 		I really dont like ANY holes in a carbon tube, no matter how small and no matter the location.  I don't even like the setup of drilling the tube near the tip and putting screws in to hold it in place.  Over time, I dont care how small the hole, a crack can migrate and one can form small enough you dont even know it is there. 

I've never seen any problems with having the vacuum issue. 

Others have had success drilling holes in carbon tubes, I just personally don't like it. 

Just my .02

Arch


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RE: Black Magic VF3 Build Thread - 6/2/2009 7:46 PM   
MHester


 

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Status: offline 		I'll go on record by stating I don't condone drilling holes in carbon tube if I can help it either. Although I haven't personally yet seen any issues with holes at the tips, I wouldn't want a hole anywhere near the center section. It might indeed be just fine.....but it's not a risk I'd personally take.

of course apparently I don't have a problem taking a risk with not doing maintenance on said tube LOL

-Mike


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RE: Black Magic VF3 Build Thread - 6/5/2009 1:38 AM   
cmoore806


 

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Status: offline 		Alright.  Tomorrow I will likely get the wing roots lined up on my vf3 and get the wing mounting mechanisims in place and perfectly aligned.  After that its belly pan, cowl, tail blocks, etc etc.  I am placing an order from Tower soon and though I have all kinds of hinges in the shop I am wondering what you recommend.  I like plastic "klett style" hinges with the pin in them.  I plan to use them but dont know what you guys are using.  I've seen how CA attacks foam, and dont think that CA hinges are adequate for this bird.  So, whats the word?






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RE: Black Magic VF3 Build Thread - 6/5/2009 1:40 AM   
Ryan Smith


 

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Status: offline 		Chris,

CA hinges are plenty adequate, however I would reccomend that if you went that route to use the Radio South hinges. I prefer Du-Bro plastic pinned hinges myself, but to each his own.

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RE: Black Magic VF3 Build Thread - 6/5/2009 2:21 AM   
rcpattern



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Status: online 		Nothing wrong with CA hinges.  Just get the glue on the wood, not the foam.  My V3 that Mike built has all CA hinges.  Never had a problem,

Arch


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RE: Black Magic VF3 Build Thread - 6/5/2009 2:27 AM   
RC11


 

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Status: offline 		Radio South ..blue CA hinges were recommended by many. I have them in my son's VF3.

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RE: Black Magic VF3 Build Thread - 6/5/2009 3:36 AM   
cmoore806


 

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From: Bay Village, OH, USA
Status: offline 		they make two types, 1/4 scale (http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXDZ44&P=ML) and pro hinges (http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXDZ43&P=SM)  Which ones?



Chris
 


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RE: Black Magic VF3 Build Thread - 6/5/2009 3:38 AM   
handglider



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Status: offline 		 go with the 1/4 scale




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RE: Black Magic VF3 Build Thread - 6/5/2009 3:53 AM   
lodomjr


 

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From: Lakeland, FL, USA
Status: offline 		I finally finished the the new stabs and putting all the stuff back in the "NO NO Bag".   The wheelpants from Precision Aircraft worked out real well.  The plane is flying real nice and the planes now weighs 10lbs 14oz.  This now a big weight off my shoulders.  Everyone have a great time at Andesonville and the NATS and I'll see all of you again at Huntsville.  I hope to have my VF3 finished and trimmed by that time and again I'll have a new plane to make it's first appearence at this contest.  Please no mid-airs for me.

Lawrence

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RE: Black Magic VF3 Build Thread - 6/6/2009 9:03 PM   
SByrd


 

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Status: offline 		I havent posted here in awhile I just thought that I would share pics of my VF3 with everyone. Thanks for designing a great flying plane Mike.

Stephen Byrd

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RE: Black Magic VF3 Build Thread - 6/6/2009 11:00 PM   
rcpattern



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Status: online 		Very nice.  How did the direct drive work in the tail?  Any issues with CG?

Will you have it in Crosby next weekend?

Arch


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RE: Black Magic VF3 Build Thread - 6/7/2009 12:06 AM   
SByrd


 

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Status: offline 		The DIrect Drive worked great in the tail and wings. I didnt have any cg problems im running the battery and Ignition just in front of the leading edge of the wing and it balanced at the wing tube, im very happy with the way the plane flys.

Yes I will have it at Crosby ill let you fly on sunday.

Stephen Byrd

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RE: Black Magic VF3 Build Thread - 6/7/2009 2:02 AM   
rcpattern



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Status: online 		I'll definitely take you up on that.  What does it weigh??  Were on the wing tube is the CG?  If you can get it at the very front or slightly ahead you'll really like it,

Arch


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RE: Black Magic VF3 Build Thread - 6/8/2009 5:22 AM   
SByrd


 

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I am at 10.10 running the cdi unit . I have it balanced right on the front of the wing tube. The plane flys amazing at that wieght and balance.

Stephen Byrd



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RE: Black Magic VF3 Build Thread - 6/8/2009 2:37 PM   
MHester


 

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Status: offline 		Nice job! I know what Arch was thinking on the CG....same thing I was. Wondering how the DD setup in the tail would affect the CG. LE of the wing tube seems to be the sweet spot.

I'm glad you like it. Looks like a weapon for sure!

-Mike


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RE: Black Magic VF3 Build Thread - 6/8/2009 3:16 PM   
SByrd


 

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Status: offline 		I was worried about it to but I just was careful where I mounted radio gear. Here is the inside view you can barely see the battery and ignition on the right side of the pic. 

Stephen



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RE: Black Magic VF3 Build Thread - 6/8/2009 7:08 PM   
BHolsten


 

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Status: offline 		Here are some Pic's so far,............

Question#1: Yellow then red? #2: Red then yellow? #3: All red?


Best Regards,

Bill Holsten

Advantage Hobby Fliton Field Rep/Custom Air Frames Of America/DragonFire Customs/DuraLite/Guardian America


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RE: Black Magic VF3 Build Thread - 6/8/2009 7:25 PM   
cmoore806


 

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Status: offline 		Bill,

I say all red is the way to go. 


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RE: Black Magic VF3 Build Thread - 6/8/2009 7:48 PM   
handglider



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Status: offline 		 NICE  !!!     Bill !

Looks like your on schedule for nats...


!!!!





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RE: Black Magic VF3 Build Thread - 6/8/2009 7:49 PM   
handglider



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RE: Black Magic VF3 Build Thread - 6/8/2009 8:10 PM   
BHolsten


 

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Keep the ideas coming,................open to suggestions for finishing the nose area.

Thanks Dean and Chris,..........


Bill Holsten



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RE: Black Magic VF3 Build Thread - 6/8/2009 8:58 PM   
rcpattern



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Status: online 		Bill,

I'd make it all red, then you have an easier area for graphics. 

Arch

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RE: Black Magic VF3 Build Thread - 6/9/2009 12:11 AM   
BHolsten


 

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Arch,....

After I looked at it several times that was the conlussion I came to,....red it is!

Thanks for the input,............

Bill Holsten

Advantage Hobby Fliton Field Rep/Custom Air Frames Of America/DragonFire Customs/DuraLite/Guardian America



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RE: Black Magic VF3 Build Thread - 6/10/2009 3:47 AM   
cmoore806


 

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Status: offline 		Could someone please post a pdf or similar document of a two-view line drawing of the VF3 for color scheme layout purposes?


Chris






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