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Rocket progress: 1

The last week of school is: Rocket Week!! This year I decided to take part in the fun. I’ve wanted to shoot off a big model rocket for a while, and when I was buying model rocket motors in Anchorage back in August I simply couldn’t not pick up the largest motor they had that didn’t require a license (an Aerotech G80-10, for the interested). When I ordered rocket kits for the kiddos, I also ordered a big rocket for the big motor.

Since next week is the last week, today was building time! The motor mount is all done (approximately half the work). It was very interesting and kinda fun to put together: unlike the small rockets I’ve made before, this model’s design manifests significant thought towards distributing the motor’s impulse effectively to the body through surface to surface joints and not through cement/glue/epoxy joints. Which is to say it made me feel a little bit like a rocket scientist as I worked.

Also, according to a youtube video, this sucker should get to 2000 to 3000 feet, traveling at 600+ mph. Yeah! Awesome!

Er..also..yeah..that does make me a little nervous. Did I mention the launch-button-controller thing has all of twenty feet of wire between the switch and the alligator clips? I’m seriously considering building a plywood box with a narrow-slit-window from which to control/launch/video the launch.

Reading instructions and looking at diagrams
Reading instructions and looking at diagrams
Checking the fin mounts for proper alignment. The fins, which mount through the body, transfer the motor's impulse from the motor mount to the rocket's body. Cool, huh?
Checking the fin mounts for proper alignment. The fins, which mount through the body, transfer the motor’s impulse from the motor mount to the rocket’s body. Cool, huh?
everything ready for epoxy? ready! ready-set-mix! and apply! Go go go! ... that's kinda what goes through my mind when work with a very, very very limited supply of 5-minute epoxy.
everything ready for epoxy? ready! ready-set-mix! and apply! Go go go! … that’s kinda what goes through my mind when work with a very, very very limited supply of 5-minute epoxy.
One motor mount ready to go. Not seen: the cool internal steel-ribbon baffling designed to cool the gasses from the ejection charge before they reach the fragile lightweight parachute. Rocket science, folks.
One motor mount ready to go. Not seen: the cool internal steel-ribbon baffling designed to even out and cool the gasses from the ejection charge before they reach the fragile lightweight parachute. Rocket science, folks.

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