X-Git-Url: https://git.gag.com/?p=web%2Fgag.com;a=blobdiff_plain;f=rockets%2Fresearch%2F2017-batch-02.mdwn;h=65ef4121ce4d18d89bdbcffcc256b39a1199b008;hp=9825e386a49330c44f5b5043ff07167a0f316865;hb=39c4f97d84db1ceb4aec00d3669278f92e06514b;hpb=f8ddf86eb701ba78484d5049b5acbbc53c031e17 diff --git a/rockets/research/2017-batch-02.mdwn b/rockets/research/2017-batch-02.mdwn index 9825e38..65ef412 100755 --- a/rockets/research/2017-batch-02.mdwn +++ b/rockets/research/2017-batch-02.mdwn @@ -12,8 +12,8 @@ For our first attempt, we made up a 10g batch with the following formula: * 7% magnesium powder, 0.70g * 1% air float charcoal, 0.10g * 24% West Systems 105+205 epoxy, 2.40g -** 2.01g 105 resin -** 0.39g 205 hardener + * 2.01g 105 resin + * 0.39g 205 hardener Two folded papers were used to weigh out the KNO3 in one, and a mixture of the magnesium powder and charcoal in another. The epoxy was mixed in a small @@ -43,9 +43,8 @@ These igniters were made on 17 May 2017. They didn't work. The basic problem is that the pyrogen on the Chinese e-matches is aggressive enough that they blow the end of the epoxy fire -cylinder apart without igniting the rest of the igniter. Might be worth -trying again using home-made bridge wires on shooter wire ends instead of -starting with a commercial e-match? +cylinder apart without igniting the rest of the igniter. Next time we'll +try with home-made bridge wires on shooter wire. ## Observations ##