+
+![simulation data](test5-sim.png)
+
+## Flight Test ##
+
+These four grains were assembled in an AT 38/480 case with a random AT
+delay grain from the pile of left-overs, and flown in Robert's Madcow
+Little John at Tripoli Colorado Spring Fling 2015. We used a Slim Gem
+igniter from Quickburst. Great flight! The motor seemed to come up to
+pressure quickly, and burned brilliantly.
+
+![flight acceleration data](test5-altosui.png)
+
+## Observations ##
+
+Pour went really smoothly. One grain looked "perfect" with the propellant
+settled evenly and a couple mm of open gap at the top of the casting
+tube. We think this one may have been slightly under-filled compared to
+the others, all of which had some evidence of propellant sticking to the
+cap and leaving an uneven top surface. This resulted in some quick trim
+work with a knife, ergo final grain masses not matching all that well.
+