[SS2S-Main] Re: Sugar Shot Weekly Activity Report -- Jan.13-19, 2014

  • From: flint hapirat <flinthapirat@xxxxxxxxx>
  • To: "sugarshot@xxxxxxxxxxxxx" <sugarshot@xxxxxxxxxxxxx>
  • Date: Wed, 22 Jan 2014 00:53:06 -0800 (PST)

NICE work guys
Well done!!!


> From: Richard Nakka <richard.rocketry@xxxxxxxxx>
>To: sugarshot@xxxxxxxxxxxxx 
>Sent: Wednesday, January 22, 2014 5:47 AM
>Subject: [SS2S-Main] Sugar Shot Weekly Activity Report -- Jan.13-19, 2014
>Highlights of recent developments on the DoubleSShot project
>-Randy Dormans has kindly agreed to fabricate a replacement motor
>casing for the one that suffered a burn-through during the test firing
>of the K-motor with 4 DD slot grains. Randy will also fabricate a
>second casing to hold six propellant grains.
>-A regular avionics telecon was held this past Sunday. Participants
>were Chris King, Hans Olaf Toft, Mattias Lampe, and Richard Nakka.
>Hans reported that he’d determined that a new compiler can be used to
>compile modified code for the Telemetrum flight computer. This was an
>important development, as the current compiler was unable to compile
>revised code due to code size limitations. Richard reported that
>testing of the prototype de-spin system has wrapped up with good
>results. Mattias may take on the challenge of developing a controller
>for the flight version of the de-spin system. The next telecon will be
>held on Feb. 2nd.
>- Vicente Alvero has performed further testing of the prototype Pyro
>Separation Device (PSD), this time with successful operation of the
>device which resulted in clean separation of the spring-loaded
>simulated coupler and airframe. A stiffer spring has been ordered and
>will be used to do final verification testing of the prototype under
>greater preload.
>(photo and video courtesy Vicente Alvero)
>- Richard has completed the machining of the graphite “nosecap” that
>will be used for Ablative Experimentation No.3 (aerodynamic heating of
>nose cone). The nosecap will be sent to Vicente Alvero, who will
>perform the testing in the near future.
>   Taper section machined:
>   Profile machined as a series of steps determined from CAD model:
>   Contour check of stepped profile:
>   After smoothing with flat file,  contour check of final profile.
>   Finished nosecap:
>(photos courtesy Richard Nakka)
>-Ed Brown, an SS2S Bronze Donor, has kindly offered to donate a
>two-channel “TC Logger USB” data acquisition unit (www.TCLogger.com).
>This simple to use unit should well suit our needs for collection of
>motor thrust and chamber pressure. On behalf of the SS2S team, thanks
>so much, Ed.
>-Alex Canela (http://www.rctotal.com/), who has performed volunteer
>machining services for SS2S recently, has kindly volunteered to
>compose the webpage for the upcoming Tool Raffle fund-raising drive.
>This raffle will have four prize lots of miscellaneous European-made
>hand tools (all brand-new and donated by EGAMaster).
>-As previously reported, SKF Spain (http://www.skf.com/es/index.html )
>has donated a set of “lip ring” seals valued at approximately 850 € .
>These are required for the propellant melting system under development
>by Pol Clauwaert in Belgium, under direction of Antoon Vyverman. This
>donation was arranged by Vicente Alvero, who had recently received the
>seals and has sent them to Pol. Well done, once again, Vicente.
>(photos courtesy Vicente Alvero)
>Each individual donation brings us closer to our goal of pressing the
>LAUNCH button of our Space-bound rocket:
>-Sugar Shot to Space is on facebook. Check us out.

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