Saturday was a day of sewing, circuits and foam cutting. We need a little more power output from the new propeller driven balloon release (propeller as in the chip). Mike spent the day bread boarding the modification circuit. Paul was busy at the sewing machine creating a wider tear panel for our small balloon bag. The balloon bag is just the right size for sea level launches but too small for launches the 4000 foot Black Rock lake bed. The wider tear panel will add just the right amount of room. Ethan our evil intern wrestled with triangles all day making antenna mounts for the next set of vehicles (the triangles almost had him, but he won out in the end).
Category: Uncategorized
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Schools in Space
Here are some images from camera 2 on Away 46.
On descent the radar reflector, which is suspended below the vehicle, came up to say “hi”.
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PongSats at 108,000 feet
We carried 150 student built PongSat experiments on the last mission set. Here are three PongSats up top.
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Filling the Balloon
Here’s the first video from the last mission set. It shows what it takes to get these things in the air. This is fill and launch one of four. This one is dedicated to the balloon fill team.
[wp_youtube]mCwOYV9gHn0[/wp_youtube]
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Mission Sketch
We do a sketch of each vehicle before we build it. It’s lets us get the feel of the craft. Here’s Away 45 from the last mission.
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Mission Summary
Away 43, 44, 45, 46 were real working missions. We had four primary tasks. Tracking Telemetry System side by side comparison, Balloon separation system testing, rocket launch systems tests and to carry PongSats. We had a pile of secondary objective like getting to 120,000 feet and testing new materials.
The tracking system test was successful. We been working on this for a while. I’m relieved to get this one behind us.
Our balloon release system is still giving us problems. It’s back to the cold box and vacuum chamber.
The Rocket launch systems (fire control, rocket motor heaters and launch detect) worked great. Just as a placeholder we used small 17 inch rocket as part of the test. The launch systems work the same as for a 17 inch rocket as they do for a 12 foot one. Including the small rocket gave us a change to work on procedures for live rockets as well. Away 45 and Away 46 each carried two rockets. On Away 44 we fired the rockets at low altitude, (11,000 feet). On Away 45 we ran the test at 80,000 feet. The second launch control system also worked prefect, however the rocket motors did not ignite. (little motor are very tricky to light at high altitude).
The team flew 153 PongSats student experiments!!
Our peak altitude was just over 108,000 feet. That was on Away 44. We a bit disappointed we didn’t get higher. That challenge get shifted to the next launch.
We got most of the way though the Jellyfish balloon launch, however the Jellyfish isn’t set up top be bagged launch and is very sensitive to gusts. It ended up just too windy and we aborted the flight.
The new honeycomb paper structure performed superior to our tradition foam and carbon parts. We’re pretty happy about that. It’s cheaper and quicker to build from.
Morning Setup PongSats!
Mission Control Away 45
Balloon Prep Away 43 Launch
Away 43 Away 46
Away 45 Launch
Away 45 Launch!
Away 44 low altitude launches Away 45 up top
Trail Companion Away 46 landing site
The billowing chute made the vehicles easier to spot.
Away 44 landing site. It’s that while speck just down from the fourth ridge straight out.
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All Vehicles Back in the Barn
Made it out just before the storm.
http://cbs13.com/local/sierra.blizzard.winds.2.1659387.html
More info after sleep.
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Still on Recovery
Four solid flights with lots of success and lots of issues that still need work. We learn a huge about about the Jellyfish balloon, but we could get it in the air due to wind. It was an excellent shake down though. Three vehicles have been recover. One more still to go. It looks like we go lots of great in flight images. We were really working the program this weekend.
JP
