The Mission Ends, and Afternotes

The Mission Ends

I would not stay around to see the mission end.  Once the instrument was airborne, there was no further purpose for our lab in the airplane hangar, and my job title became moving man and trucker.  The packing went ok, but on the way home I ran into another weather condition: severe thunderstorms.  Driving the broad-sided truck east on Highway 12, it was a challenge to keep it in my lane.  The rain slowed me down but fortunately, the wind was not enough to blow me over.  I thought about how fickle the spring weather in the Midwest could be.  After weeks of steady wind, the short window of calm that permitted a balloon launch was followed by a gale force blast, perhaps to compensate and bring the average wind speed back up to the South Dakota standard.

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Launch at Last!

Our next opportunity finally arrived two weeks later. Having been through two “dress rehearsals,” we knew what to expect. 

The procedure was to lay out the balloon on a protective tarp on the runway.  The topmost section of the balloon, a small portion that would become the “bubble”, was fed through a retaining “spool” and folded back on itself.  The top section had two tubes, made of balloon material, through which helium would be fed, inflating the bubble, which would gradually ease up from the tarp, eventually becoming large enough to lift itself off the ground entirely, with only the spool and the tension from the uninflated remainder keeping it in place.

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