|Launch & Static Tests|
Here are the numbers from the grains:
All are 1.51" diameter with a .625" core
1) 2.586" @ 113.8 grams
2) 2.587" @ 116.5 grams
3) 2.458" @ 106.0 grams
4) 2.428" @ 114.4 grams
Total Propellant Weight: 446.7 grams/ 0.9848 pounds
Total Propellant Length: 10.06"
Unfortuneately, the batteries on my load cell amplifier dropped below the required voltage during the test. The 10 minutes or so between setup and the firing of the motor was enough to drop the load cell reading by about 10 pounds, then after the test the output was in the -30 pound range. So the data from this test is flawed, but still gives me some idea of the curve of the burn.