April 2001 Meeting Minutes (4/6/2001)
On Tuesday April 3rd, MASA held its monthly meeting
at the Science Museum. There were 18 people in attendance (13
adults, 4 kids, 1 guest speaker). Alan started the meeting
The next launch will be on the 28th at the Elk River
site. The competition will be 1/2A streamer duration
(postponed from March). The theme will be "OddRocs!".
The next meeting will be on May 1. We will be doing some
interactive RSO / LCO training led by Ted C. and Steve H. We
still hope to do the tour of the Air National Guard Museum, but a
date hasn't been set yet. A topic is still needed for the June
Glen Overby had ventured to Texas for NARCON.
We hope that he'll write up his experience for the newsletter.
(Art Gibbens welcomes any and all submissions for the newsletter.)
VP Steve Robb reports that he is working on his new
launch control system, and it may be ready for this month's
launch. S/T David Fergus reports that the club is in good
shape, financially. Currently, we stand at 18 family
memberships, 19 senior memberships, and 4 junior memberships.
This is still below last year's levels, but we may see more renewals
and new members at the popular summer launches.
a few people brought along items for "show and
tell". Steve Robb had a very nice PML Bullpuppy.
This sparked a discussion of the problems of using phenolic pistons
inside Quantum Tube. Glen Overby had a NASA cd that contained
transcripts of all the manned NASA missions from Mercury through
Apollo 17. Dave Fergus brought along his scratchbuilt
"Heavy Lifter"; he was looking for suggestions of
appropriate decals. Steve Hum had a fin can for an
Optima/Shadow replica. He had filled the interior space
between the body tube and motor mount with 2-part expanding foam
(purchased at a florists shop). Rick Vatsaas had his
high-power, much traveled Fat Boy as well as a rocket for which he
had made custom decals. Joel Henry had an "Aptek Pencam
II" - a small digital camera that he hopes to fly in a rocket.
the evening, a special guest speaker was present. (Dr.) Tony
Manzara is a scientist with the 3M Performance Materials Laboratory
- Propellants, Ordnance, and Pyrotechnics. The title of his
presentation was "Composite Solid Rocket Propellants - a Brief
History and Current Trends." He covered the history and
different types of propellants that have been used over the
years. Tony also talked about elements of motor design -
particle size, core shape, casings and liners, environmental and
storage concerns, the chemicals used - and 3M's role and
contributions. Everyone present learned something new or
discovered why things work as they do - it was a very interesting
presentation. Thanks to Tony for coming and talking to the
group, and thanks to Art Gibbens for arranging his visit. [If
you have thought of additional questions for Tony, contact me and
I'll get you his email address - Alan.]