Model Forum / General / Rockets / November 2004

What's the best way to airstart a motor in a near vacuum?  My initial
guess is to keep the engine nozzle capped (and pressurized) until it
hits something like 100psi (when the cap bursts).  Are there any other
methods which make ignition in a near vacuum reliable?

Anyone heard of, or used these long duration, low impulse SU motors?
Any US distributors?
http://www.samsmodels.demon.co.uk/rapier.html
**

Can anyone provide me with the:
  combustion gas constant
and
  combustion gas temperature

Hiya Hun,
I personally see nothing wrong with a woman shaving her c.nt.  It
helps keep the area cleaner and therefore the smell stays down.  Its
also cool to think that a gal spent time down there, playing with

The deadline for the latest EMRR Virtual Rocket Contest is less than
two weeks away.
 http://www.rocketreviews.com/contest_current.shtml
 So far we only have three qualified entries.  

After working on a clone of the Kopter Pterosaur on and off for a few
months, I finally had a chance to fly it at last weekend's Saros launch.
The Pterosaur is a relatively heavy (4.4oz = 126g) D-powered rocket
glider.  It's about 28 inches long, with a delta wing whose span is 20 ...

Is anyone making a 24mm black powder motor that could be used in a typical
motor-to-motor staging configuration with a higher thrust than the Estes
D12-0?  I used to see posts about a D20.  Is that motor out of production?

I've seen references (over time) to problems with the instructions for
the Estes Renegade.  I'm about to build mine up, but I can found no
cogent notes anywhere about WHAT the problems were.  Any comments?
David Erbas-White

I was actually interested getting involved in the HPR community here,
since I rather enjoyed Estes Class and LPR when I was younger. I have
been doing a major amount of reading through the various by-laws,
regs, and resource pages available to the general public about HPR.

What is the best bet now for a low-impulse F or G motor? I have the
Aerotech Phoenix rocket glider kit, which comes with an Aerotech 32/60-100
casing. Until Aerotech resumes production, does anyone know of a source
still selling old F-12/G-12-RCT loads? Failing that, would it be ...

We've got enough RMR specific trolls already. PLEASE do not feed the
Stupid Trolls! that are spamming multiple newsgroups at a time
    Bob Kaplow    NAR # 18L    TRA # "Impeach the TRA BoD"
        >>> To reply, remove the TRABoD! <<<

We have received a phone call that my wife's mother has less then 1 year to
live.
I am working on orders but it is going slow as I am trying to be there for
my wife.

I just left the Hobby People in Fountain Valley, CA.  They had the Estes
Hydrogen Rocket on the shelf, for $39.99 (actual product, not just an
ad).  Also, the Quest Micro-Max Super-Value kit has been reduced from
$39.99 to $29.99.  For this, you get a launcher, launch pad, ten