[BProckets] homemade rocket body material sources and techniques - "sugar" question

[Dan Durachko]

I'll determine this on my own eventually but am I correct in my current
understanding that *all* so-called "sugar" formulations have quite limited
post-production shelf life?

Also, what are the theoretical and/or practical Isp's for BP vs sugar?

-----Original Message-----
From: bprockets-bounces at amateurrocketry.com
[mailto:bprockets-bounces at amateurrocketry.com] On Behalf Of donnie long
Sent: Friday, November 05, 2004 10:39 AM
To: Black Powder rockets discussion list
Subject: Re: [BProckets] homemade rocket body material sources and
techniques

Rocketryonline.com, rocketreviews.com, good place to
start, riknakka.net or put in sugar rocket engines.  I
started out over 10 years ago with bp but switched to
sugar engine's, easier, cheaper, more power.  donnie
--- Dan Durachko <DanDurachko at psu.edu> wrote:

> All:
> 
>  
> 
> I haven't actually built a rocket in over twenty
> years and have just
> recently zeroed in on my first BP engine a la
> Sleeter's book.  In
> anticipation of getting the book I'd been savings
> all sorts of tubes and
> have a box of balsa sheeting scraps for fins from my
> other hobby pursuits.
> Also, I've only built Estes kits as a youth.
> 
>  
> 
> Questions:
> 
>  
> 
> 1)       What are good web or book resources for
> constructing rocket bodies?
> 
> 2)       At what point need I be concerned about
> high g forces on launch
> shredding my rockets and is this ultimately an
> empirical determination?
> 
> 3)       What techniques are used to prep
> paper/cardboard tubes for final
> painting?  (Some of my salvaged tubes have rather
> unattractive grooves in
> them due to their spiral wound nature.  I may wish
> to fill them in and paint
> over them sometime.)
> 
> 4)       What are the currently favored types of
> wadding to protect the
> chute, etc.?
> 
> 5)       What are some sources of nosecones?  (I'll
> ultimately make some on
> my own from balsa and fiberglass and things like
> those eggs pantyhose come
> in but assume there are lots of sources I haven't
> yet thought of.)
> 
> 6)       Is there a quick and dirty way to calculate
> how much delay I should
> build into my engines for a particular design so
> that I don't pop the chute
> WAY too early or WAY too late?
> 
> 7)       Feel free to chime in with any other
> guidelines you may think I
> should be made aware of.  (Shock cord info, fin
> geometry, etc.)
> 
> 8)       Oh yeah, I remember seeing some stuff
> awhile back about guys
> stripping down and hacking into digital disposable
> cameras for high altitude
> stills.  Any cutting edge references to that sort of
> aerial photography
> would be much appreciated as well.
> 
>  
> 
> Whew . . . that should do for a start!
> 
>  
> 
> Later,
> 
>  
> 
> Dan
> 
> > _______________________________________________
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> BProckets at amateurrocketry.com
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> 



		
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