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#1
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Parachute silk as material for Internal "S" sealing
Dear All,
What is the opinion about using Parachute silk, as material for Internal "S" sealing ? I have an old parachute, think its material would be ideal for the aileron sealing of a PIK-20D. Any comment, god or bad idea ? |
#2
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Parachute fabric would maybe be OK as long as it is zero porosity.
Permeable materials are called _filters_, not seals. The other question is whether you can find long enough pieces without seams, etc. that would make the job more difficult. Considering the total scope of the job, why don't you just break down and buy some coated ripstop from an outdoor supplier? $10-20 worth should easily do the entire job. -Bob Korves wrote in message oups.com... Dear All, What is the opinion about using Parachute silk, as material for Internal "S" sealing ? I have an old parachute, think its material would be ideal for the aileron sealing of a PIK-20D. Any comment, god or bad idea ? |
#3
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Bob Korves wrote: Parachute fabric would maybe be OK as long as it is zero porosity. Permeable materials are called _filters_, not seals. The other question is whether you can find long enough pieces without seams, etc. that would make the job more difficult. Considering the total scope of the job, why don't you just break down and buy some coated ripstop from an outdoor supplier? $10-20 worth should easily do the entire job. -Bob Korves wrote in message oups.com... Dear All, What is the opinion about using Parachute silk, as material for Internal "S" sealing ? I have an old parachute, think its material would be ideal for the aileron sealing of a PIK-20D. Any comment, god or bad idea ? Good advise, Bob. Most balloon repair stations will have coated ripstop nylon. Clay Thomas |
#4
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Hi Bob,
The size is not a problem, because the seal consists of many smaller pieces. What does it mean "coated ropstop" ? |
#5
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#6
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Aircraft dacron works fine ... see the last page of this article.
http://sailplane-racing.org/Articles...asw20_wing.htm |
#7
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Ripstop nylon has heavier threads every few millimeters to help stop rips
from propagating in the fabric. Coated means that a coating (typically urethane) has been added to stop air and/or water from passing through the fabric. REI sells it. -Bob Korves (former Pik-20d owner -- s/n 20589) 5K LAK-17a 5H Duo Discus wrote in message oups.com... Hi Bob, The size is not a problem, because the seal consists of many smaller pieces. What does it mean "coated ropstop" ? |
#8
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I couldn't figure out how to install "S" seals in my PIK20D because the
ailerons slide sideways into place and the space was very small. I had top mylar seals. I added bottom mylar seals and that lowered thermally speeds by 3 kts. Improved climb as well. Eric Greenwell wrote: wrote: Dear All, What is the opinion about using Parachute silk, as material for Internal "S" sealing ? I have an old parachute, think its material would be ideal for the aileron sealing of a PIK-20D. Any comment, god or bad idea ? My ASH 26 has a "Teflon sealing/slip adhesive tape", made by 3M. I suggest you consider that, as it is impermeable and easy to apply (I'm told). -- Change "netto" to "net" to email me directly Eric Greenwell Washington State USA -- Best Regards, Chuck Lohre, Lohre & Associates, Inc., Marketing Engineering 2330 Victory Parkway, Suite 701, Cincinnati, OH 45206 Toll Free: 877-608-1736, 513-961-1174, Cell: 513-260-9025 Fax: 513-961-1192, E-mail: Marketing Handbook: http://www.lohre.com/extra/index.html |
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