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Marty Weiser launch report

June 8, 2014

I got in one flight! The test flight of the upper stage of my Waiver Bait Challenge rocket at NXRS at the end of the month in Brothers, OR. This is a 54 mm, min diameter that I chocked down and flew on a H112J. It weather cocked a fair bit and only reached 1290 ft.
The apogee charges were insufficient (they worked well in a previous version) so the main deployment at 700 ft. saved the rocket with a minor zipper. Since this is dual deploy from the nose cone it is the main charge pushing the chute out that is my major concern. I had better get it figured out since the challenge involves flying to between 33 and 38 kft! I also had two of my students and a couple of friends come out for the launch. Jesse Huston obtained his TRA L1 on his scratch built Hell Fire using an H73J motor. He narrowly missed his L1 cert on an I366 at FITS 2 weeks ago when a burr on the eyehook in the nose cone abraded the Kevlar cord so it separated just before landing. Then he and Spencer Scott decided to drag race their very similar L1 cert rockets on an I161 and a 1997 vintage I154 that I had lying around – sims are over 4000 ft. The I154 failed to light the first 2 times so Jesse won. However, Spencer got in a good flight on their 3rd try based upon the text I received. I now have 4 students who are TRA L1 certified and enthusiastic about both rocketry in general and the propellant characterization study in general. I think the ability to fly some of the propellant we are making will push them to TRA L2. I also heard the friends enjoyed flying the models, but are interested in flying something larger as well. Marty

Posted by bobble at June 8, 2014 6:49 AM

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