Mid-Power rockets

Mid-Power rockets

Post by JOE PRYSZL » Thu, 27 May 1993 11:41:00



I'm about to go launch my first mid-power rocket, the Aerotech Initiator.  I
want to start off with a E15 and work my way up.

My question is:

Should I trust the ejection baffle, or should I still use some kind of wadding?

What kind of wadding do engines above D use?

Do other companies like NCR or LOC have baffles or wadding systems?

 
 
 

Mid-Power rockets

Post by bill nels » Thu, 27 May 1993 14:11:58


: I'm about to go launch my first mid-power rocket, the Aerotech Initiator.  I
: want to start off with a E15 and work my way up.
:
: My question is:
:
: Should I trust the ejection baffle, or should I still use some kind of wadding?

I have used the baffle, without any problems for at least 20 launches. It is
getting a little cruddy, so I will probably remove it in the near future.

: What kind of wadding do engines above D use?

Lots of it.  I use cellulose insulation.

: Do other companies like NCR or LOC have baffles or wadding systems?

Some do, I don't remember which ones. I don't recall if LOC is one of them.
I have some reloadable engines that have baffles - the nice part is that the
guts are easily replaceable when they start to plug - using part of a
stainless steel pot sc***.

Bill

 
 
 

Mid-Power rockets

Post by Greg Eld » Thu, 27 May 1993 15:16:05


Quote:

>I'm about to go launch my first mid-power rocket, the Aerotech Initiator.  I
>want to start off with a E15 and work my way up.

>My question is:

>Should I trust the ejection baffle, or should I still use some kind of wadding?

I've launched my Initiator 3 times now on an E, F, and G motors.  The baffle
works fine.  I've had no problems with it.

Quote:
>What kind of wadding do engines above D use?

>Do other companies like NCR or LOC have baffles or wadding systems?

I thik NCR uses wadding and LOC has its own baffle system.

--


Arizona State University

 
 
 

Mid-Power rockets

Post by Dave Goodw » Thu, 27 May 1993 23:12:58


Quote:

>I'm about to go launch my first mid-power rocket, the Aerotech Initiator.  I
>want to start off with a E15 and work my way up.

>My question is:

>Should I trust the ejection baffle, or should I still use some kind of wadding?

Sure.  I've flown all my Aerotech stuff with just the baffles and have
had no problems whatsoever.  I do use only Aerotech motors though, since
I put in the motor retaining hook.  I have heard you should not use a
Rocketflite black-powder motor since it causes the baffle to overheat,
but I have no direct knowledge of that.  It is important, IMHO, to do as
Aerotech suggests and fluff the baffle material with a piece of metal
after a few launches.  Lots of crud will fall out when you do this.

Quote:
>What kind of wadding do engines above D use?

Others have responded too, but I tend to use lettuce or cellulose.

Quote:
>Do other companies like NCR or LOC have baffles or wadding systems?

I don't know about NCR but LOC has baffles for their smaller tubes.  I
know they don't recommend the step-down models though.

Dave