[SS-VehDev] Re: about myself

[Lakestake Rocketry]

Good afternoon Roman,

Wow, sounds like you have been having fun! I might take you up on
your kind offer if I have trouble finding something obscure. I usually
purchase remnants at good discounts as most of my projects don't
need more than a few yards of the same weave.

For the SS2S rocket do you foresee the need for a larger purchase?
If so do you have a source for wholesale pricing for us? Here in SoCal
you need to be a major aerospace concern to have the volume needed
for any concessions on price. For the bolt-ends I usually pick up
(7 yards of 52" carbon at $20/yard) I have to watch out for pulls and
cuts. I would assume we want a higher level of consistency in our
materials for this project.

Matt Campbell

On 9/12/05, Ing. Roman Lev <r-composites at seznam.cz> wrote:
> 
> Hello Matt,
> 
> I' m working for czech manufacturer of Sikorsky S-76 helicopters in 
> Canada, Newfoundland, my current position is source inspector for composite 
> details / assemblies. With composites I'm working past 20 years, you name it 
> I did it, canoes, paddles, ship structural repairs, composite raicing yachts 
> [ 30 ft, for Switzerland, beautiful big ships, carbon/kevlar/foam design ], 
> I dont remeber everything. Composites are my life, my hobby and fortunately 
> my job too. Some stuff I got home, if you would need anything, let me know -
> 
> r+
> > ------------ Puvodni zprava ------------
> > Od: Lakestake Rocketry <lakestake at gmail.com>
> > Predmet: Re: [SS-Main] comp NC, therm properties
> > Datum: 10.9.2005 00:20:25
> > ----------------------------------------
> > Good afternoon (at least it is here!),
> >
> > Your input is really great, as we get more technical you can
> > send the details directly to the vehicle development team at
> > SS-VehDev at sugarshot.org We don't want to use up the
> > bandwidth of the main group working out details until we
> > have a proposal to put forward for comment.
> >
> > What is your background? It sounds like we have similar
> > access to materials.
> >
> > Take care,
> >
> > Matt
> >
> > On 9/9/05, Ing. Roman Lev <r-composites at seznam.cz> wrote:
> > >
> > >
> > >
> > > >From the usable materials I can offer a lot of russian structural 
> kevlar
> > > 1/8 satin harness , if I remember correctly its about 120-150 g/sq.m, 
> some
> > > noname hybrid kevlar/carbon 2:1 180 g/sqm too, carbon yarn 24K T700 
> and
> > > Hexcel IM 12k yarn as well. I think there should be no big deal buy 
> some
> > > carbon cloth about 180-240 , it will be just few sq m anyway.
> > >
> > > If we are not sure, which design is capable to survive, how about to 
> do
> > > some tests? Relatively small coupon, heated by heatgun in controlled
> > > conditions, at the same time load the sample by bending stress- almost
> > > immediatelly after softening of the outer skin the sample would bend - 
> ?
> > >
> > > r+
> > > _______________________________________________
> > > SS-Main mailing list
> > > SS-Main at sugarshot.org
> > > http://www.exrocketry.net/mailman/listinfo/ss-main
> > >
> >
> >
> >
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.exrocketry.net/pipermail/ss-vehdev/attachments/20050912/cf20adce/attachment.htm