From: Bdale Garbee <bdale@gag.com>
Date: Sat, 7 Oct 2017 16:13:08 +0000 (-0600)
Subject: capturing at least the skeleton of research motor test burn data this month
X-Git-Url: https://git.gag.com/?p=web%2Fgag.com;a=commitdiff_plain;h=3e16c14fa8347986b349ee98b7705a5ab6368e85

capturing at least the skeleton of research motor test burn data this month
---

diff --git a/rockets/research/2017-test-08.mdwn b/rockets/research/2017-test-08.mdwn
new file mode 100755
index 0000000..05053e8
--- /dev/null
+++ b/rockets/research/2017-test-08.mdwn
@@ -0,0 +1,19 @@
+# Test 2017-08 #
+
+4 grain 38mm erithritol motor with pyrodex pellet ignition in test stand
+at Fall Frenzy launch in Hartsel.
+
+</p>
+
+* Grain , g gross, g net
+* Grain , g gross, g net
+* Grain , g gross, g net
+* Grain , g gross, g net
+
+Total of g propellant, vs g simulated.
+
+## Results ##
+
+Lit ok, burned ok, but still very very slow start.
+
+Flight data logged as ? sn ?, flight ?.
diff --git a/rockets/research/2017-test-09.mdwn b/rockets/research/2017-test-09.mdwn
new file mode 100755
index 0000000..65d5917
--- /dev/null
+++ b/rockets/research/2017-test-09.mdwn
@@ -0,0 +1,20 @@
+# Test 2017-09 #
+
+4 grain 38mm erithritol plus 0.4% black iron oxide  motor with pyrodex 
+pellet ignition in test stand at Fall Frenzy launch in Hartsel.
+
+</p>
+
+* Grain , g gross, g net
+* Grain , g gross, g net
+* Grain , g gross, g net
+* Grain , g gross, g net
+
+Total of g propellant, vs g simulated.
+
+## Results ##
+
+Lit and burned, but no improvement over basic KNER .. slightly weird plateau
+in data during coming up to pressure.  Not good.
+
+Flight data logged as ? sn ?, flight ?.
diff --git a/rockets/research/2017-test-10.mdwn b/rockets/research/2017-test-10.mdwn
new file mode 100755
index 0000000..10da149
--- /dev/null
+++ b/rockets/research/2017-test-10.mdwn
@@ -0,0 +1,19 @@
+# Test 2017-10 #
+
+4 grain 54mm sorbitol motor with pyrodex pellet ignition in test stand
+at Fall Frenzy launch in Hartsel.
+
+</p>
+
+* Grain , g gross, g net
+* Grain , g gross, g net
+* Grain , g gross, g net
+* Grain , g gross, g net
+
+Total of g propellant, vs g simulated.
+
+## Results ##
+
+Good burn.
+
+Flight data logged as ? sn ?, flight ?.
diff --git a/rockets/research/2017-test-11.mdwn b/rockets/research/2017-test-11.mdwn
new file mode 100755
index 0000000..46b41c8
--- /dev/null
+++ b/rockets/research/2017-test-11.mdwn
@@ -0,0 +1,22 @@
+# Test 2017-11 #
+
+4 grain 54mm sorbitol motor with pyrodex pellet ignition flown in 3-inch
+test mule at Fall Frenzy launch in Hartsel.
+
+</p>
+
+* Grain , g gross, g net
+* Grain , g gross, g net
+* Grain , g gross, g net
+* Grain , g gross, g net
+
+Total of g propellant, vs g simulated.
+
+## Results ##
+
+Ematch apparently burned but failed to light the pyrodex.  When pulling the
+match leads out, the pyrodex pellet wedged up somewhere, maybe at the boundary
+between first and second grains?  Borrowed an igniter from Terry which did
+not go all the way to the front.  Lit and burned ok, decent flight.
+
+Flight data logged as ? sn ?, flight ?.
diff --git a/rockets/research/2017-test-12.mdwn b/rockets/research/2017-test-12.mdwn
new file mode 100755
index 0000000..81f314f
--- /dev/null
+++ b/rockets/research/2017-test-12.mdwn
@@ -0,0 +1,32 @@
+# Test 2017-12 #
+
+5 grain 75mm sorbitol motor with pyrodex pellet ignition in 4-inch Wildman
+rebuilt airframe at NCR North.
+
+Trimmed CTI 5-grain case (25.75" overall), Loki #42 nozzle, CTI aft closure
+ring, forward bulkhead from Terry's pile machined to have 0.5" inside snap 
+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.
+
+O-rings made forward closure a *very* snug fit.
+
+</p>
+
+Neglected to re-weigh grains after trimming and before epoxying into the 
+liner.
+
+* Grain , g gross, g net, 4.5" long
+* Grain , g gross, g net, 4.5" long
+* Grain , g gross, g net, 4.5" long
+* Grain , g gross, g net, 4.4375" long
+* Grain , g gross, g net, 4" long
+
+Total of g propellant, vs g simulated.
+
+## Results ##
+
+Flight data logged as ? sn ?, flight ?.