[SS2S-Main] Re: Interesting Motor-Design Documents

  • From: Richard Nakka <richard.nakka@xxxxxxxxx>
  • To: sugarshot@xxxxxxxxxxxxx
  • Date: Thu, 16 Jan 2014 10:30:00 -0600

To design/build the instruments to measure motor thrust and chamber
pressure. We would have to do this on a "tight" budget.

R.

On Thu, Jan 16, 2014 at 10:18 AM, vicente Alvero Zambrano <
vicente_alvero_14@xxxxxxxxxxx> wrote:

>
> What kind of help with the instrumentation?
>  ------------------------------
> From: vicente_alvero_14@xxxxxxxxxxx
> To: rickmaschek@xxxxxxxxxxxxxx
> Subject: RE: [SS2S-Main] Re: Interesting Motor-Design Documents
> Date: Thu, 16 Jan 2014 17:17:40 +0100
>
>
> What kind of help with the instrumentation?
>  ------------------------------
> Date: Thu, 16 Jan 2014 08:15:04 -0800
> From: rickmaschek@xxxxxxxxxxxxxx
> Subject: Re: [SS2S-Main] Re: Interesting Motor-Design Documents
> To: vicente_alvero_14@xxxxxxxxxxx
>
>  I already am building one for another sugar project, was going to
> suggest it for SS2S if it works.
>
> Rick
>
>   *From:* vicente Alvero Zambrano <vicente_alvero_14@xxxxxxxxxxx>
> *To:* "sugarshot@xxxxxxxxxxxxx" <sugarshot@xxxxxxxxxxxxx>
> *Sent:* Thursday, January 16, 2014 8:10 AM
> *Subject:* [SS2S-Main] Re: Interesting Motor-Design Documents
>
>  that would be great, why not try.?
>
>  > Date: Thu, 16 Jan 2014 09:54:39 -0600
> > Subject: [SS2S-Main] Re: Interesting Motor-Design Documents
> > From: richard.rocketry@xxxxxxxxx
> > To: sugarshot@xxxxxxxxxxxxx
> >
> > Interesting suggestion, Jeff. I am not aware of any sugar motor that
> > has ever used an aerospike nozzle.
> >
> > As Bill pointed out, the fact that a large percentage of the exhaust
> > is condensed phase (44%, to be exact), may result in reduced
> > performance compared to a regular nozzle. But might be worth
> > investigating. Perhaps some testing can be done with the new
> > experimental VIC-2 motor...which is intended for "miscellaneous" type
> > experimentation.
> >
> > Richard
> >
> > On Wed, Jan 15, 2014 at 8:10 PM, Jeff Moore <tnetcenter@xxxxxxxxx>
> wrote:
> > >
> > > I'm wondering if any consideration has been given to the use of
> aerospike
> > > nozzles in our endeavors? Seems to me that there is a significant
> > > performance bump using this nozzle design as well as a significant
> reduction
> > > of base drag. I doubt if anyone has used an aerospike nozzle on a sugar
> > > motor either - we'd be breaking new ground!
> > >
> > > Might be worthwhile to take a closer look at!
> > >
> > > Jeff Moore
> > > Bend, Oregon
> > >
> > > On Wed, Jan 15, 2014 at 3:24 AM, <monsieurboo@xxxxxxx> wrote:
> > >>
> > >> After reading that superb report of the latest static test, it seemed
> > >> appropriate to cross-post this link that just showed up on the
> arocket list.
> > >> Great single-page source for some document downloads on issues that
> are
> > >> quite topical for our current phase of development and testing.
> > >>
> > >> http://www.rasaero.com/dl_solid_motor.htm
> > >>
> > >> My intent in posting this is not in the least to be critical. Au
> > >> contraire, I have nothing but kudos for our testing program and team.
> This
> > >> is just some very interesting reading that's worth saving in a
> MOTOR_DESIGN
> > >> folder somewhere in a hard disk archive.
> > >>
> > >> "Departures from Ideal Performance", for example, seems relevant to
> our
> > >> quest of trying to maximize the performance of our <cough> inherently
> > >> mediocre fuel <cough, cough, grin>
> > >>
> > >> Enjoy!
> > >> Mark L.
> > >> DC
> > >>
> > >
> >
>
>
>

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