|
Highlights of recent developments on the MiniSShot Project
-------------------------------------------------------------
- Rick Maschek reported that the parcel containing the two casting
tubes, hydraulic pump and other items needed for the upcoming "grain
structural test" arrived safely. A couple of days after receiving the
parcel, Rick cast the two propellant grains and reported good quality
grains with density values similar to that achieved for the MiniSShot
flight grains.
- A Skype telecon was held this past weekend to discuss fabrication of a
set of replacement fins for MiniSShot 2 and to discuss details of the
"grain structural test". One outcome of the discussion was a commitment
by John P.Montello to fabricate the fins, with materials to be supplied
by Richard. Another outcome was the setting of a firm date for
conducting the "grain structural test", which is set for July 10th. This
will allow the propellant a full three weeks to "cure". Participants of
the Skype telecon were Rick Maschek, Richard, Nathan Asdourian, John and
his father.
- Richard shipped the fin material (carbon fabric and Corecell rigid
foam) to John P. Montello, which should arrive on-site early next week.
- On a recommendation by Robert Krech, Hans reports that he will attempt
to revise the Chute Controller (CC) software to better handle a
non-nominal flight condition. The CC had fired the Main Parachute charge
at an altitude of 73 metres, which was a lot closer to the ground than
what would have been the case for a nominal flight (400 metres).
- Richard has completed the application of fibreglass reinforcement on
both new motor casings slated for MiniSShot 2. The reinforcement
consists of three layers of glass cloth at both ends of each casing, and
serves to reinforce the regions of the casings where the attachment
holes will be drilled. The length of the reinforcement is 3 inches (8
cm), except just aft of the Midbulkhead, where the length is 8 inches
(20 cm) as this is the region of the casing that is subjected to the
greatest thermal loading.
http://www.sugarshot.org/downloads/ms_006a.jpg
- Chris reports that the scope of work required to refurbish the
MiniSShot avionics is modest, and would represent approximately two
weeks of effort. One recovery beacon (Booster) may need to be replaced.
Note: the next Weekly Activity Report will be issued two weeks from now
(July 5th).
---------------------
Be a part of Space history. Make a contribution to the Sugar Shot to
Space program. http://www.sugarshot.org/sponsors.html#Donors
_______________________________________________
SS-Main mailing list
SS-Main@sugarshot.org
http://www.exrocketry.net/mailman/listinfo/ss-main
|
Project
Description
