Date:	Thu, 15 Jul 1993 05:04:08 -1000
From:	thompsontra@phibred.com
Message-Id: <9307151504.AA14557@phibred.phibred.com>
Organization: Division of Applied Sciences, Harvard University
Subject: E-mail addresses

In a recent post Cliff offered up a Rev II for the pretty good price of $70. 
However in requesting offers by E-mail he forgot to include his address. 

Being a Network manager I realize that it is easy to forget to add your address
to a mail or news message.  In fact most people assume that the address will be
readily available from the header information.

Many people who access rec.kites utilize the Harvard gateway (thanks Marty) and
it does not transfer the Internet/Usenet address of a message poster.

OK with that aside I do also have a quick question.  I have read a couple of
books on building my own kites but none of then have included a description of
the relative advantages of each type of hem and seam that you can sew.  I'm
most interested in the seams partiularly for both use in a parafoil type design
and a delta.

When choosing between the following three seams which would be most appropriate
for each type of kite.  (Standard ASCII pictures and descriptions follow)

Single seam with flaps tacked to opposite sides:

      -----------------------        -------------------------
      |                      \      /                        |
      |                      |------|                        |	
      |                      /      \                        |
------------------------------        ------------------------------

      ^                          ^                           ^
      tacking flap to sail       Main stitch joining         tacking flap to
                                 two peices                  sail

Personally this looks like it wouldn't be teriably stable, but maybe someone
can tell me how it would be used?


Second, single seam, both flaps tacked to one side


       -----------------------
       ---------------------  \
       |                    \ |      < -- main seam here
       |                    / \
----------------------------   ----------------------

       ^ 
       tack flap to sail here


This seams the easiest to sew, as you simply make the main seem and then fold
both flaps over and sew them down.  But does this seem look good and will it
hold well?


Lastly the idea of basically tripple-sewing each seam.  In order to do this it
is my understanding that you double your hem allowance and fold the cloth over
twice.


          ----------------------------
         /  -----------------------\  \
        |  /                        | |
        |  \                        | |   <--- Main stitch here
        |   ---------------------   | |
         \                          | |
          -----------------------   | |
                                    / \
 -----------------------------------   ----------------------------
             ^                 ^
             Tack to sail      Tack to sail

I think this looks the most stable, but also takes the most work and my be hard
to get the sail to line up completely.


Anybody with comments on the different types of seams, or maybe you can
recommend one that would work better?

Thanks in advance for the help... and thanks to everyone who has been posting
here, it has been very informative.

Good winds, tight lines and of course since I live in Iowa some sunshine would
be nice too. :-)

======================================================================
Travis Thompson                   | Internet:  Thompsontra@phibred.com
Network Manager                   | America Online: TTrav2
Microbial Environmental Services  |
Des Moines, IA                    | These opinions are my own, etc.
======================================================================
Program:  n.  A magical spell cast on a computer that allows it to
  turn your input data into error codes.  v.  An activity similar
  to banging your head against a wall with much less opportunity 
  for reward.  -- Anonymous
======================================================================


      


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