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