Model Forum / General / Rockets / August 2004

Can anyone direct me toward currently available kit or plans for a large
(single-E engine or greater) R/C boost glider? Old r.m.r posts direct me
toward Vectoraero at <http://members.aol.com/kmckiou/>, but that URL is now
a null page.

If I were to ask a REAL specific question about any rocket I owned which,
let's saaaaaaaay, had an ARRD on board, that might limit others here to
nothing other than an education as they may not have a rocket that uses one
OR they may never fly a rocket that big or a myriad other ...

I know that black powder is listed as a low explosive, but do very
small quantities need to be stored in a magazine according to law? For
example, Robbies Rockets charges with a couple grams of BP, or a small
film container of BP to pour into ejection charge wells.

I would just like to announce that I have started up a new company,
Underdog Rockets. Right now,we are a vendor for FlisKits, however, we
are hoping to vend some Aerotech and Edmonds Aerospace kits.

What are the TRA standards for motor operating repeatability. I have always
operated under the assumption that  a certified motor would operate within
a window of plus or minus 10% of published performance. Is this correct?
Where would this info be cited?

Let's go, let's go....
Who has been promoting this?
Let's go, let's go....
Nick

I hope I'm not wearing out my welcome yet...
I've seen on a few vendor sites kits that were either multi-stage or clustered.
I'd eventually like to get into those as well.  I know how the multi-stage
work, but how do the clusters work?  I'm trying to figure out how you get all

Sky Ripper Motors Certified
July 9, 2004
Web posted at: 4:34 PM EDT
(ROL Newswire) --  Sky Ripper Systems, makers of hybrid rocket motors

Any one else having problems getting stuff from FireFox?
I was interested in some 400 micron AP and a little Manganese Dioxide.
Their part number for Manganese Dioxide and Calcium Chloride are identical,
so I need clarification.

OK anyone that has questions for the townhall meeting E-MAIL them to me !!!
townhall @ nerys.com (no spaces)
I will check mail till 1945 then I am off to the meeting not one minute
later I have to get the WEBCAM set up :-)

Can someone give me a definite answer to what the exact nozzle throat dia.
is ?
Thanks
JD

I was thinking of posting some pics of the rockets I have so far.  Are most
people really interested in seeing other enthusiasts' models?
If nothing else, you can laugh at what I have... :-)
Eldred

I've been noodling around an idea for a liquid fuel engine design.
It would use gasoline or alcohol and compressed O2.
The design is fairly basic, but requires pretty close tolerances.
Basically it consists of two tanks and a combustion chamber.  The

http://www.kktv.com/news/headlines/886191.html
"The man who lived in the home was retired and was believed to be home at
the time of the explosion. His wife was in Denver. And investigators are
fairly sure of what caused the blast. "The history with him is he did

Has there been any papers written by hobbyists on controlling boundary layer
airflow?
I was painting a rocket with Kilz and was wondering if it would make sense,
instead of sanding it smooth, to leave the rough finish to break up the