[RocketsNW] Silk Lay-Ups

[CAMERON Kenneth A]

Greetings
While not directly tied to rocketry, I can attest to the fact that silk
can increase resistance to flexing in some instances.  As a traditional
archer who teaches folks how to make wooden longbows and flatbows, I've
used silk as backing on an English longbow and it increased the pull
weight (i.e. stiffness) from 55 pounds to 75 pounds.  This was with two
layers of raw silk cloth attached with carpenters glue.  I also know
that multi-layer varnished silk was used as light armor (though I prefer
chain mail, I teach classes in that, too).  Imagine the look on the
clerk's face at the fabric store when you ask if she knows how well silk
stands up to speeds above mach one.
Ken Cameron
Brewer to the Gods of Valhalla (at least that's who the said they were)

-----Original Message-----
From: rockets-bounces at rocketsnw.com
[mailto:rockets-bounces at rocketsnw.com] On Behalf Of Bill Munds
Sent: Monday, February 01, 2010 10:53 AM
To: vonrang at yahoo.com; Dave Randall; rockets at rocketsnw.com
Subject: Re: [RocketsNW] Silk Lay-Ups


Sam,

Why not test it?  Newspaper and white glue work pretty well structurally
(Jr. High science project).

I would think that silk being pretty strong by itself would work if in
multiple layers in different directions.

 

Hmmm.......





 
> Date: Mon, 1 Feb 2010 07:33:48 -0800
> From: vonrang at yahoo.com
> To: dmrandall at gmail.com; rockets at rocketsnw.com
> Subject: Re: [RocketsNW] Silk Lay-Ups
> 
> Yes, silk fabric for axial flexture and sheer strength.
> 
> 
> Sam Grado
> TRA L2
> 
> "If you're going to build it, build it from scratch"!
> 
> sales at pvconly.com
> http://www.pvconly.com
> http://www.sugarshot.org/bios/sgrado.html
> http://groups.google.com/group/PVC-Motor-Rockets
> 
> --- On Mon, 2/1/10, Dave Randall <dmrandall at gmail.com> wrote:
> 
> 
> From: Dave Randall <dmrandall at gmail.com>
> Subject: Re: [RocketsNW] Silk Lay-Ups
> To: "Sam Grado" <vonrang at yahoo.com>
> Date: Monday, February 1, 2010, 8:40 AM
> 
> 
> Sam,
> 
> I've embedded different cloths in a couple of rockets for decorative
> purposes (not strength)... Is that what you're asking about, or is it
> for strength?
> 
> Dave
> 
> On Mon, Feb 1, 2010 at 4:56 AM, Sam Grado <vonrang at yahoo.com> wrote:
> > Has anyone here worked with silk cloth for airframe lay-ups?
> >
> > Sam Grado
> > TRA L2
> >
> > "If you're going to build it, build it from scratch"!
> >
> > sales at pvconly.com
> > http://www.pvconly.com
> > http://www.sugarshot.org/bios/sgrado.html
> > http://groups.google.com/group/PVC-Motor-Rockets
> >
> >
> >
> > _______________________________________________
> > Rockets mailing list
> > Rockets at rocketsnw.com
> > http://mx1.blastzone.com/mailman/listinfo/rockets
> >
> >
> 
> 
> 
> -- 
> - Dave
> 
> 
> 
> 
> _______________________________________________
> Rockets mailing list
> Rockets at rocketsnw.com
> http://mx1.blastzone.com/mailman/listinfo/rockets
> 
 		 	   		  
_______________________________________________
Rockets mailing list
Rockets at rocketsnw.com
http://mx1.blastzone.com/mailman/listinfo/rockets