[SS2S-Main] Re: Sugar Shot Weekly Activity Report -- Feb.17-23, 2014

  • From: Richard Nakka <richard.rocketry@xxxxxxxxx>
  • To: sugarshot@xxxxxxxxxxxxx
  • Date: Mon, 3 Mar 2014 12:30:44 -0600

Hmm, seems to be down at the moment, thanks for the 'heads up'
Alberto, I'll send a message to Dave McCue..

Richard

On Mon, Mar 3, 2014 at 11:58 AM, Alberto Gassol <alberto@xxxxxxxxxxxxxxx> wrote:
> Hi Richard, could not access ss2s site, might it be down again?
>
> Cheers / alberto
>
> ----- Original Message ----- From: "Richard Nakka"
> <richard.rocketry@xxxxxxxxx>
> To: <sugarshot@xxxxxxxxxxxxx>
> Sent: Friday, February 28, 2014 9:32 PM
> Subject: [SS2S-Main] Sugar Shot Weekly Activity Report -- Feb.17-23, 2014
>
>
>> Highlights of recent developments on the DoubleSShot project
>>
>> ---------------------------------------------------------------------------------------
>> - On Saturday, Feb.22, Vincente Alvero test fired the VIC-2B
>> experimental rocket motor. This was the first test firing of this
>> motor, and was basically a successful firing. The primary purpose of
>> this test was an exercise in propellant casting, motor assembly and
>> static test firing operation. Secondary goals were to test a new
>> ablative material applied to the nozzle convergent section, and to
>> test a new carbon-fibre nozzle cone. Two problems occurred during
>> firing: leakage past the forward bulkhead o-ring, and the nozzle cone
>> blew off shortly after thrusting commenced. The leakage was a result
>> of a tiny seam in the motor casing, which will be filled for the next
>> firing. The nozzle cone blew off as a result of overly-shallow blind
>> holes in the nozzle cone that acted as recesses for the attachment
>> screws. This will be rectified by drilling deeper holes. The second
>> test firing of the VIC-2 motor is scheduled for Saturday, March 1st.
>>    Close-up video-captures of motor firing:
>> http://sugarshot.org/downloads/vic-2b_starting.jpg
>> http://sugarshot.org/downloads/vic-2b_thrusting.jpg
>> http://sugarshot.org/downloads/vic-2b_burnout.jpg
>>   Videos of test firing:
>> http://youtu.be/htpYBGZtrSI
>> http://youtu.be/nkPF4ldzP7A
>> (videos courtesy Vicente Alvero)
>>
>> -The planned firing of the 4-grain DD-slot motor, currently scheduled
>> for Saturday, March 1st, may have to be postponed due to expected
>> severe weather at the FAR experimental test site.
>>
>> -Antoon Vyverman reports recent progress with the propellant melting
>> system that the VRO group is developing for SS2S. Antoon wrote "Pol
>> has almost finalized the mechanical part of the melting system. The
>> aluminum tubes have been anodized. David Steemans can now finalize the
>> heating control system. In the meantime a sufficient quantity of
>> sorbitol was bought to be able to start the testing. For the testing,
>> we will use a mixture of salt (NaCl) and sorbitol".
>>
>> - Vicente Alvero has supplied photos of recently machined parts for
>> Ablative Experimentation Part III. These parts were expertly machined
>> by a volunteer in Spain by the name of Pedro Brines.
>> http://sugarshot.org/downloads/img_1655a.jpg
>> http://sugarshot.org/downloads/img_1656a.jpg
>> http://sugarshot.org/downloads/img_1657a.jpg
>>
>> THE SS2S TOOL-RAFFLE IS UNDERWAY. PURCHASE YOUR TICKET FOR A CHANCE TO
>> WIN, AND SUPPORT SUGAR SHOT IN OUR EFFORT TO REACH SPACE ON THE POWER
>> OF SUGAR.
>> http://sugarshot.org/tool-raffle/index.html
>> ---------------------------
>> -Sugar Shot to Space is on facebook. Check us out.
>> http://tinyurl.com/2exr92k
>>
>
>

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