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Building Tips and technical articles. => Building techniques => Topic started by: Tom Perry on October 25, 2006, 09:26:10 AM

Title: Silkspan on wingtips tip
Post by: Tom Perry on October 25, 2006, 09:26:10 AM
Dennis said in another post:

For doing tips we used to do this when we were a lot younger. Dope by itself is too slow to grab and hold the covering material in place so we used to mix Duco cement in a 50/50 ratio with the clear. Now to clarify this we only made up a little amount of this as we only used it to hold down really stubborn spots. It also worked great on undercambered wings. The weight was really negligable and it did sand out nicely.

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When using Silkspan I need a third hand.  Since I can't seem to grow one I use BULLDOG paper clips to hold tension on the Silkspan.  I attach one to the overhanging Silkspan then attach another one to the first and so on until enough weight has been added to hold tension until the dope is dry enough to remove them.

 AP^
Title: Re: Silkspan on wingtips tip
Post by: Jerry Bohn on October 25, 2006, 11:19:33 AM
Tom, I to am third arm impared, thanks for a good tip.
Title: Re: Silkspan on wingtips tip
Post by: Steve Helmick on November 11, 2006, 10:26:52 PM
You can forgo the glue/dope mix by just using "Fabric Cement" from your local aircraft supply store or homebuilder's supply store, like Aircraft Spruce. That's what it's for, actually. Randolph should be compatible with SIG and Brodak dopes. I've known a few guys who used this stuff for all construction. It's much like Duco or "Tarzan's Grip", for Ozzies. Smells the same!  n~ Steve
Title: Re: Silkspan on wingtips tip
Post by: Ward Van Duzer on November 20, 2006, 02:43:33 PM
For you third arm impaired individuals: Buy one!

Get one of those paint stands you see here and mount the A/C in the paint stand when carving, sanding, covering, painting, etc.
Title: Re: Silkspan on wingtips tip
Post by: Bill Gruby on November 20, 2006, 02:56:48 PM
A little HELP PLEASE

Thats a good idea(BUY ONE). Is there a special place to do just that. I'm not trying to be funny, I really DON'T KNOW.

I've been looking at the stand Robert is using to hold his P-47.

Bill Gruby HB~> HB~> HB~> HB~> HB~> HB~>
Title: Re: Silkspan on wingtips tip
Post by: RC Storick on November 20, 2006, 05:36:24 PM
The stand is available from Byron Barker, I do not have his contact info.
Title: Re: Silkspan on wingtips tip
Post by: Leester on November 20, 2006, 06:46:09 PM
Info: Byron Barker

  C.F. Slattery
  2101 Logan Ave.
  New Albany, In. 47150
ph. 812-948-9167
fax 812-948-0758
e-mail: linecontr@aol.com
Title: Re: Silkspan on wingtips tip
Post by: Bill Gruby on November 20, 2006, 07:20:08 PM
Thanks a bunch, will check it out.

Bill Gruby y1 y1 y1
Title: Re: Silkspan on wingtips tip
Post by: dennis lipsett on November 21, 2006, 11:29:34 AM
Dennis said in another post:

For doing tips we used to do this when we were a lot younger. Dope by itself is too slow to grab and hold the covering material in place so we used to mix Duco cement in a 50/50 ratio with the clear. Now to clarify this we only made up a little amount of this as we only used it to hold down really stubborn spots. It also worked great on undercambered wings. The weight was really negligable and it did sand out nicely.

Great minds always think alike  ;D I use spring clip clothes pins for weight. As to buying something special from Aircraft Spruce etc. Why? The solution I've been using for 40 years works fine, and if it works don't fix it.
Covering with silk and dope  or silkspan has over the years become for me second nature. The same is true for most of the older modellers on the forum. We all have our favorite methods to achieve the results we want, Thats the most important thing, satisfactory results ,not just good enough. AP^
_____________________________________________

When using Silkspan I need a third hand.  Since I can't seem to grow one I use BULLDOG paper clips to hold tension on the Silkspan.  I attach one to the overhanging Silkspan then attach another one to the first and so on until enough weight has been added to hold tension until the dope is dry enough to remove them.

 AP^
Title: Re: Silkspan on wingtips tip
Post by: Bill Little on November 21, 2006, 12:19:07 PM
Lots of good information here.

I think I have finally come to the understanding as to why I (personally) like to use Nitrate instead of butyrate for covering with silkspan.  It is just so much more "sticky"!  I never thought about it much, I have just (subconsciously, I guess) done it...............

I work the nitrate in with my "size 21 fingers" around the edges applying more as necessary and gently pulling the wet silkspan down and around until I work out all the wrinkles and it is stuck.  Sometimes it is quicker than others!  But I have just never done as good with butyrate as I do with nitrate.  All a matter of personal preferences I guess!  y1
Title: Re: Silkspan on wingtips tip
Post by: dave siegler on November 29, 2006, 10:52:40 AM
I have been using close pins to weight down the free edge of the silkspan over the wing tip for a long time now. you can get it nice and tight and wrinkle free.  It works really well.

Dave

Title: Re: Silkspan on wingtips tip
Post by: Bruce Shipp on November 29, 2006, 11:25:56 AM
One each, plain white glue stick.  Tucks tose errant corners done very well.