X-Git-Url: https://git.gag.com/?p=web%2Fgag.com;a=blobdiff_plain;f=rockets%2Fresearch%2Ftest2.mdwn;h=1c996f807d3928560ffbdfb62908393e115445fa;hp=e14465e3252aa53562026601a8282bef2e93eb68;hb=2f24dee781b78df3c6a71b374c182cfa2fc2f87d;hpb=94cbcfd669bbd7985a8b3ea158279be3c232e765 diff --git a/rockets/research/test2.mdwn b/rockets/research/test2.mdwn index e14465e..1c996f8 100755 --- a/rockets/research/test2.mdwn +++ b/rockets/research/test2.mdwn @@ -1,4 +1,4 @@ -# Test 1 # +# Test 2 # Trying again using the same formula as [test 1](test1.html), but different handling logistics for pouring the grains. @@ -25,5 +25,16 @@ the last grain so not clear how well it filled. Two grains stacked on each mandrel, for 4 grains total. That left enough to form a test burn rod about 3/8" diameter and in excess of 4" long. +## Results ## + +* Grain 1, 55.42g net +* Grain 2, 54.57g net +* Grain 3, 55.90g net +* Grain 4, 56.33g net + ## Observations ## +Went much better than trying to pour one large "grain" to cut later, but we +still seemed to have lots of bubble inclusions. Either need to use more +surfactant or keep everything warmer to get better grains. Possibly pour +on a vibration table?