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[web/gag.com] / rockets / research / 2019.01.08.mdwn

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+# Batch 2019.01.08 #
+
+4 Terry-length Everyclear grains for 54mm cases, with 0.5 inch cores, 
+cast as two 6-inch-long double grains then cut and trimmed.
+
+This was my second time mixing APCP propellant.  Again used the 4.5qt mixer 
+and hand packed with no vacuum processing.  Same formula as yesterday
+
+These grains were cast on 2019-01-08.
+
+## Results ##
+
+The updated batch size was just right, there was a bit of excess propellant
+so we can make density and burn rate measurements after cure.
+
+* Grain 1, gross, g casting tube, g net propellant
+* Grain 2, gross, g casting tube, g net propellant
+* Grain 3, gross, g casting tube, g net propellant
+* Grain 4, gross, g casting tube, g net propellant
+