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authorandrew <andrew@web>2009-06-10 07:26:34 (GMT)
committer Portland State Aerospace Society <psas@psas.pdx.edu>2009-06-10 07:26:34 (GMT)
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parentce08d26e2598b473f3d76c6fadee7d9dc67729f7 (diff)
downloadwiki-e474640b2b94d94865e9b862183a7d2ac86ab4b6.zip
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@@ -10,9 +10,13 @@ We gathered at Tim's house Saturday morning at 9:00am to pack all of our rocket
We arrived in Brothers around 5:00pm, and in the last few hours of sunlight, managed to raise the launch tower and set up the antennas.
+<table><tr><td>
[[!img toy_hauler_at_dusk.jpg size="200x200" caption="Done with setup"]]
+</td><td>
[[!img sunset.jpg size="200x200" caption="Saturday evening sunset"]]
+</td><td>
[[!img zs_thunderstorms.jpg size="200x200" caption="Thunderstorms to the west" alt="Courtesy Zander Speaks http://speaksphotographic.com/"]]
+</td></tr></table>
Saturday evening we stayed up late carefully prepping the avionics module and Dan's helicopter... but we - shockingly- even managed to get some sleep.
@@ -23,31 +27,49 @@ This was an "airframe only" launch, but we still managed to cram in a bunch of s
- Keith's Telemetrum flight computer, with GPS (flown as payload only, with it's 900 MHz telemetry sending real-time telemetry and acting as a direction finder).
- An Olimex LPC2148 development board with SCP1000, MP3, and ADXS pressure sensors and ADXL3xx 2 axis accelerometer.
+<table><tr><td>
[[!img dave_and_payload.jpg size="200x200" caption="Dave and payload"]]
+</td><td>
[[!img working_on_payload.jpg size="200x200" caption="Andrew working on payload"]]
+</td><td>
[[!img avionics_work_saturday_night.jpg size="200x200" caption="working late into the night"]]
+</td><td>
[[!img working_on_helicopters.jpg size="200x200" caption="Dan working on his helicopter"]]
+</td></tr></table>
### **Sunday morning prep**
Sunday morning we got back to work 9:00am, did a final checkover of the avionics, attached the igniters, buttoned up the rocket, and took it to the launch tower.
+<table><tr><td>
[[!img camera_port.jpg size="200x200" caption="Rocket Cam"]]
+</td><td>
[[!img ltc.jpg size="200x200" caption="Launch Tower Computer"]]
+</td><td>
[[!img launch_tower_prep.jpg size="200x200" caption="Prepping the launch tower"]]
+</td><td>
[[!img putting_together_rocket.jpg size="200x200" caption="Putting together the rocket (avionics through motor bay)"]]
+</td></tr></table>
We were ready to go by about 12:45pm, just in time the 12:30pm - 2:30pm waiver that Jeff of BORG called in for us. Again, surprisingly, we were ready to go, we just had to wait for a cloud break. After waiting about 30 minutes for a largish patch of blue sky, we turned on the avionics system(s), and cleared the pad.
+<table><tr><td>
[[!img zs_loading_motor.jpg size="200x200" caption="Pete loading the N motor" alt="Courtesy Zander Speaks http://speaksphotographic.com/"]]
+</td><td>
[[!img zs_going_up.jpg size="200x200" caption="Ready to go" alt="Courtesy Zander Speaks http://speaksphotographic.com/"]]
+</td><td>
[[!img zs_rocket_on_tower.jpg size="200x200" caption="Rocket and launch tower" alt="Courtesy Zander Speaks http://speaksphotographic.com/"]]
+</td></tr></table>
One fun distraction was Dan's electric "T-Rex" helicopter. He strapped our spare camera and 2.4 GHz ATV transmitter to the nose and buzzed launch control and the launch tower. We had high hopes to catch the launch from the helicopter's perspective, but a loss of RC control made the 'copter crash and snap a blade. Next time!
+<table><tr><td>
[[!img 2009-05-31_helicopter_overflight.png link="2009-05-31_helicopter_overflight.mov" caption="RC Helicopter flight movie (14 MB)"]]
+</td><td>
[[!img helicopter-pre-flight.jpg size="200x200" caption="Helicopter pre-flight"]]
-[[!img zs_helicopter_in_flight.jpg size="200x200" caption="Helicopter on its way!" alt="Courtesy Zander Speaks, ]]
+</td><td>
+[[!img zs_helicopter_in_flight.jpg size="200x200" caption="Helicopter on its way!" alt="Courtesy Zander Speaks, http://www.speaksphotography.com"]]
+</td></tr></table>
### **Sunday afternoon launch.**
@@ -61,8 +83,11 @@ And here's a [[short real-time video|launch_dk.avi]] of launch.
The rocket leaped off the pad on Pete Ekstrom's "N" motor with a eery blue glow. We heard two large reports, which later we figured out was the motor "chuffing" (overpressuring).
+<table><tr><td>
[[!img zs_launch.jpg size="200x200" caption="Launch!" alt="Courtesy Zander Speaks http://speaksphotographic.com/"]]
+</td><td>
[[!img zs_rocket_blast.jpg size="200x200" caption="Blast left by motor" alt="Courtesy Zander Speaks http://speaksphotographic.com/"]]
+</td></tr></table>
We all lost track of it as it went above the cloud layer, and we all desperately were hoping the parachute system would work. Keith lost telemetry for a a few seconds, but once he got it back, he was able to announce that we were falling slowly enough that we should be on the drogue.
@@ -70,15 +95,23 @@ We all lost track of it as it went above the cloud layer, and we all desperately
And indeed, about a minute after that, the drogue and rocket were sighted.
+<table><tr><td>
[[!img rocket_on_drogue.jpg size="200x200" caption="LV2.3 falling on the drogue"]]
+</td><td>
[[!img rocket_on_drogue_deploying_main.jpg size="200x200" caption="Rare shot of the main deploying"]]
+</td><td>
[[!img almost_down.jpg size="200x200" caption="Nosecone and main body"]]
+</td></tr></table>
Finally, the ARTS board fired the line cutters and the main chute came out. To top it all off, the rocket landed only a few hundred feet from the launch tower!
+<table><tr><td>
[[!img nose_and_droque.jpg size="200x200" caption="Nose cone and drogue parachute on ground"]]
+</td><td>
[[!img zs_rocket_on_ground.jpg size="200x200" caption="rocket body and main parachute on ground" alt="Courtesy Zander Speaks http://speaksphotographic.com/"]]
+</td><td>
[[!img used_motor.jpg size="200x200" caption="A well used motor"]]
+</td></tr></table>
And just in time, too: about an hour after the launch, the winds whipped up and started blowing over tents and people, and it started to drizzle. We packed up in record time, and headed back to Portland.
@@ -91,8 +124,11 @@ And just in time, too: about an hour after the launch, the winds whipped up and
Also thanks to:
+<table><tr><td>
[[!img zs_thanks_to_nasa_and_psu.jpg size="200x200" caption="Thanks to PSU, NASA, IBM..." alt="Courtesy Zander Speaks http://speaksphotographic.com/"]]
+</td><td>
[[!img zs_thanks_to_aess.jpg size="200x200" caption="... and the IEEE AESS" alt="Courtesy Zander Speaks http://speaksphotographic.com/"]]
+</td></tr></table>