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

  • From: william colburn <space1space@xxxxxxxxxxxxx>
  • To: "sugarshot@xxxxxxxxxxxxx" <sugarshot@xxxxxxxxxxxxx>
  • Date: Wed, 15 Jan 2014 19:00:01 -0800 (PST)

A  high percentage of solids in the combustion products mitigates the 
effectiveness of aerospike nozzles. The solids do not behave like a gas in 
other words.

But a good thought and for pure AP people might be a good idea. It actually had 
been done before in the distant past and there was some chat about making the 
nozzles available to HPR users.

Many thanks to Mark for the excellent documents. I have the originals but had 
forgotten how much valuable information was therein... Chuck's thoughts on 
nozzle design were particularly useful. And now they are electronic and in a 
file in my laptop!

Gravity is a Stern Mistress..
The Tick.

 From: Jeff Moore <tnetcenter@xxxxxxxxx>
To: SS2S List <sugarshot@xxxxxxxxxxxxx> 
Sent: Wednesday, January 15, 2014 6:10 PM
Subject: [SS2S-Main] Re: Interesting Motor-Design Documents

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.
>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> 
>Mark L.

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