From: Bdale Garbee <bdale@gag.com>
Date: Sat, 7 Oct 2017 16:16:34 +0000 (-0600)
Subject: add sim data for 75mm motor
X-Git-Url: https://git.gag.com/?p=web%2Fgag.com;a=commitdiff_plain;h=6978aa924dc360f0c0616c833e103f58583bc88c

add sim data for 75mm motor
---

diff --git a/rockets/research/2017-test-12.mdwn b/rockets/research/2017-test-12.mdwn
index 81f314f..58d4411 100755
--- a/rockets/research/2017-test-12.mdwn
+++ b/rockets/research/2017-test-12.mdwn
@@ -9,10 +9,12 @@ ring plus 0.25" inside liner, with two o-rings, one pushing against liner.
 
 Liner 23.125" long with about 22.25" available for fuel load.
 
-Had to trim grains to fit.  Four just required squaring up the ends and 
-trimming excess casting tube away.  Fifth one was cut in miter box with saw.
+Simulation says this is a 57% L-1366 with 3804 Ns total impulse, 797 psi max, 
+76% volume loading, and about 2.6 seconds burn time.
 
-O-rings made forward closure a *very* snug fit.
+<!--Begin motor CTI mod Sorbitol HTML export from MotorSim-->
+<table class='motor' style='text-align: left; border: 1px solid black'><tr><th colspan='6' class='title'>CTI mod Sorbitol</th></tr><tr class='summary'><th>Rating:</th><td>57% L-1366</td><th>Max Pressure:</th><td>5.5 MPa</td></tr><tr class='summary'><th>Total Impulse:</th><td>3804 Ns</td><th>Specific Impulse:</th><td>131 s</td></tr><tr class='summary'><th>Max Thrust:</th><td>1706 N</td><th>Volume Loading:</th><td>76%</td></tr><tr class='summary'><th>Average Thrust:</th><td>1366 N</td><th>Fuel Mass:</th><td>2958 g</td></tr><tr><td colspan='4' class='thrust'><img src='http://chart.apis.google.com/chart?chxt=x,x,y,y,r,r&chs=400x200&cht=lxy&chco=3072F3&chds=0,2.78,0,1705.86&chxr=0,0,2.78|2,0,1705.86|4,0,383.49&chd=t:0,0,0,0,0,0,0.01,0.01,0.01,0.01,0.01,0.04,0.09,0.18,0.31,0.49,0.77,1.18,1.4,1.8,2.55,2.77,2.78|0,91.36,178.73,267.59,350.09,424.37,491.87,553.42,609.32,659.92,705.6,1075.86,1095.99,1121.65,1280.52,1398.83,1549.03,1685.96,1705.86,1637.7,490.86,0.61,0.48&chxl=1:|s|3:|N|5:|lbf&chxp=1,50|3,50|5,50' width='400' height='200' alt='null' /></td></tr></table>
+<!--End motor CTI mod Sorbitol-->
 
 </p>
 
@@ -29,4 +31,9 @@ Total of g propellant, vs g simulated.
 
 ## Results ##
 
+Had to trim grains to fit.  Four just required squaring up the ends and 
+trimming excess casting tube away.  Fifth one was cut in miter box with saw.
+
+O-rings made forward closure a *very* snug fit.
+
 Flight data logged as ? sn ?, flight ?.