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General control line discussion => Open Forum => Topic started by: Bill Little on April 14, 2014, 03:49:10 PM

Title: OK, All my top ranked flying and building friends!
Post by: Bill Little on April 14, 2014, 03:49:10 PM
I couldn't decided where to put this so it is in the Open forum.  No offense to us mere mortals who enjoy the event!

What is the best tape to use for sealing hinge gaps?

What is the best technique for applying the tape?

I have taped many gaps but have never been really happy with it. (in fact my last plane had cloth hinges that ran the whole length of the parts)

Thanks!
Bill
Title: Re: OK, All my top ranked flying and building friends!
Post by: 55chevr on April 14, 2014, 04:05:19 PM
Bill - there is a lot threads on this subject.  Most recommend 3M Crystal Clear.  I have used 3M Book Binding tape ... the is a lot of info on Stuka Stunt Forum as well.

Joe
Title: Re: OK, All my top ranked flying and building friends!
Post by: Bill Little on April 14, 2014, 04:16:06 PM
Hi Joe,

I didn't have much success with the search function.  Maybe I wasn't holding my mouth right??  Haven't been to SSW in a while, just lazy............. ;D

Where do you get your 3M Crystal Clear?

BIG Bear
RNMM/AMM
Title: Re: OK, All my top ranked flying and building friends!
Post by: James Mills on April 14, 2014, 04:23:25 PM
Hi Joe,

I didn't have much success with the search function.  Maybe I wasn't holding my mouth right??  Haven't been to SSW in a while, just lazy............. ;D

Where do you get your 3M Crystal Clear?

BIG Bear
RNMM/AMM
I have used the 3M tape that has Cat 190 on the back of the package (usually pick it up at Ace or Lowe's).  Got this tip from Ted Winterman and haven't had any problem with it pulling paint when time to replace. 

James
Title: Re: OK, All my top ranked flying and building friends!
Post by: Bob Whitely on April 14, 2014, 06:17:58 PM
The absolute best tape to use for sealing gaps is called Moore's
Crystal Clear. It's made in either Sweden or Switzerland can't remember
which. You can get it at any good art store or large drafting supply store.
Nothing else even comes close. RJ
Title: Re: OK, All my top ranked flying and building friends!
Post by: Randy Cuberly on April 14, 2014, 06:23:20 PM
The absolute best tape to use for sealing gaps is called Moore's
Crystal Clear. It's made in either Sweden or Switzerland can't remember
which. You can get it at any good art store or large drafting supply store.
Nothing else even comes close. RJ

RJ is absolutely right...as usual of course.  Art store here in Tucson carries it...no where else that I could find.

Randy Cuberly
Title: Re: OK, All my top ranked flying and building friends!
Post by: 55chevr on April 14, 2014, 06:28:45 PM
http://www.clstunt.com/htdocs/dc/dcboard.php?az=show_topic&forum=103&topic_id=110451&mesg_id=110451&listing_type=search


I also used "Blenderm" ... a medical  product ... 1" wide
Title: Re: OK, All my top ranked flying and building friends!
Post by: Doug Moon on April 14, 2014, 06:52:54 PM
none..
Title: Re: OK, All my top ranked flying and building friends!
Post by: Garf on April 14, 2014, 07:47:40 PM
Blenderm is medical tape sold by DuBro labled "Dubro Electric Flyer Hinge Tape".
Title: Re: OK, All my top ranked flying and building friends!
Post by: Brett Buck on April 14, 2014, 07:52:08 PM
I couldn't decided where to put this so it is in the Open forum.  No offense to us mere mortals who enjoy the event!

What is the best tape to use for sealing hinge gaps?

What is the best technique for applying the tape?



http://stunthanger.com/smf/index.php?topic=11355.msg99465#msg99465

    By the way, this tape is a miraculous improvement on masking tape for joining balsa sheets edge-to-edge, too.

   Brett
Title: Re: OK, All my top ranked flying and building friends!
Post by: Paul Wescott on April 14, 2014, 09:47:35 PM
Blenderm is medical tape sold by DuBro labled "Dubro Electric Flyer Hinge Tape".

Blenderm is available through RCGroups:
http://www.rcgroups.com/forums/showthread.php?t=2146661

It is often used to hinge surfaces (not just full gaps) on foamies and small-medium electric planes.

Paul
Title: Re: OK, All my top ranked flying and building friends!
Post by: Steve Fitton on April 15, 2014, 05:54:05 AM


http://stunthanger.com/smf/index.php?topic=11355.msg99465#msg99465

    By the way, this tape is a miraculous improvement on masking tape for joining balsa sheets edge-to-edge, too.

   Brett

..you mean like making wing skins, etc? what makes it better?
Title: Re: OK, All my top ranked flying and building friends!
Post by: Derek Barry on April 15, 2014, 07:20:07 AM


http://stunthanger.com/smf/index.php?topic=11355.msg99465#msg99465

    By the way, this tape is a miraculous improvement on masking tape for joining balsa sheets edge-to-edge, too.

   Brett

I use scotch tape too and I never tape over hinges. (per Ted)

Derek
Title: Re: OK, All my top ranked flying and building friends!
Post by: Brett Buck on April 15, 2014, 10:09:34 AM
..you mean like making wing skins, etc? what makes it better?

     It flattens out much better when you make the hinge between the two sheets, and it doesn't permit any glue to bleed underneath.

    Brett
Title: Re: OK, All my top ranked flying and building friends!
Post by: Tim Wescott on April 15, 2014, 10:12:11 AM


http://stunthanger.com/smf/index.php?topic=11355.msg99465#msg99465

    By the way, this tape is a miraculous improvement on masking tape for joining balsa sheets edge-to-edge, too.

   Brett

Ooh!  I'll try that next time.  I'm always disappointed by how well my sheets go together.  I think I'm too dang picky.
Title: Re: OK, All my top ranked flying and building friends!
Post by: Randy Cuberly on April 15, 2014, 01:05:23 PM
Ooh!  I'll try that next time.  I'm always disappointed by how well my sheets go together.  I think I'm too dang picky.

Maybe you just need to sand the edges a little straighter.... y1 <= <= LL~

Randy Cuberly
Title: Re: OK, All my top ranked flying and building friends!
Post by: Ted Fancher on April 17, 2014, 10:36:38 PM
none..

Doug,

While (as you know) I'm a great admirer of your skills, I'm compelled to ask...

Assuming wing loading is an important factor to fly stunt well; when properly applied, what possible harm could sealing a gap in a lifting surface cause?  (assuming, of course, you're not using slotted flaps).  I, at least theoretically, believe that the smallest wing that can provide the necessary lift to support the stunter's mass in the hardest corners should be an advantage over a larger, less efficient surface.  Why would it not be advantageous to minimize the loss of lift that results from allowing gaps to reduce the difference in pressure between the high and low pressure surfaces of a wing/tail?

Ted
Title: Re: OK, All my top ranked flying and building friends!
Post by: Brett Buck on April 17, 2014, 11:54:55 PM

Maybe you just need to sand the edges a little straighter...

  Sand, that's a good one!  Of course you just cut them, one swipe and they are done.

  Brett
Title: Re: OK, All my top ranked flying and building friends!
Post by: john e. holliday on April 18, 2014, 08:34:41 AM
Good article on sealing hinge lines in that last issue of Control Line World.   In fact a lot of good articles in the last issues.   John says if subscriptions don't increase, Control Line World may be no more.  Yes it is like this site, it  covers more than just stunt planes.    H^^
Title: Re: OK, All my top ranked flying and building friends!
Post by: Brett Buck on April 18, 2014, 08:52:44 AM
Good article on sealing hinge lines in that last issue of Control Line World. 

  Or, for free:

http://stunthanger.com/smf/index.php?topic=11355.msg99465#msg99465

   Brett
Title: Re: OK, All my top ranked flying and building friends!
Post by: john e. holliday on April 18, 2014, 09:00:46 AM
This is not exactly free,  ask Robert.   Of course I guess it is free to those that don't donate to it.    S?P