[SS2S-Main] Re: Changes to SS2S; Moving forward in our pursuit of reaching Space on the power of Sugar...

  • From: Rick Maschek <rickmaschek@xxxxxxxxxxxxxx>
  • To: "sugarshot@xxxxxxxxxxxxx" <sugarshot@xxxxxxxxxxxxx>
  • Date: Mon, 18 Aug 2014 10:13:20 -0700

I agree with the problems that would be associated with solid sugar motors in 
an OTRAG configuration. I was at the IO launch of their single motor CPM TV 
vehicle they plan on using for their cluster, with throttling liquid motors and 
active guidance, such a vehicle would be possible. The attached photo shows an 
earlier project of theirs from here in the Mojave using motors similar in size 
to our ProtoSShots but the big difference was the solid vs liquid propellant 
types. I would hate to see how much time would be spent trying to develop a 
reliable sugar solid cluster and seeking FAA approval.
 
http://www.interorbital.com/ 
 
The same would hold true for using parallel strap on sugar boosters. I am 
looking at either a 2-stage (preferable) or 3-stage vehicle for getting us to 
space. Right now the plans are to quickly build a 2-stage MiniSShot to test and 
evaluate going with a 2-stage project. I would like to have this done by the 
end of this year. At this juncture, I am open to any and all suggestions for 
proceeding forward
 
Rick 


On Monday, August 18, 2014 8:17 AM, Jon Cherba <joncherba@xxxxxxxxx> wrote:
  


With the un-predictable nature of sugar propellant I believe it would be in the 
best for the project to go with staged motors... 
On Aug 18, 2014 10:12 AM, "Richard Nakka" <richard.rocketry@xxxxxxxxx> wrote:

Mark,
>Your suggestion of using the OTRAG concept is an interesting one and
>may be the means to reach Space if a large diameter sugar motor proves
>to be non-feasible. We've had good success with our 3.5" (89mm) sugar
>motors, clustering these (with a 2 stage configuration) might work.
>On the downside, clustering has its challenges. For example, the
>potential for asymmetric thrust if not all motors burn with the same
>thrust profile...which can happen with sugar motors.
>Food for thought, anyway.
>
>Richard
>
>On Fri, Aug 15, 2014 at 6:25 PM, Redacted sender monsieurboo@xxxxxxx
>for DMARC <dmarc-noreply@xxxxxxxxxxxxx> wrote:
>> This might be the perfect time for us to blue-sky a bit.  We've fortified
>> our ranks with a crop of new team members in the last few years, and old
>> dogs like me who'd bought into the original innovative design concept may
>> still have a few fizzling neurons to contribute for the cause.
>>
>> An over-the-top example:  If truly massive sugar engines are proving too
>> structurally marginal, one possibility would be to resurrect OTRAG with a
>> "bundled" cluster of smaller engine modules.  Of course there's much more to
>> the OTRAG concept, and the math might not work with sugar propellant --
>> again, just an illustrative example.
>>
>> We have a great opportunity to throw open the creative floodgates again as
>> we try to make our dream a reality.  Who knows what we might come up with!
>>
>> Cheers,
>>
>> Mark L
>> DC
>>
>>
>>
>
>

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