capture skeletal data from latest tests

diff --git a/rockets/research/2019-test-3.mdwn b/rockets/research/2019-test-3.mdwn
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+# Test 2019-3 #
+
+Re-starting the process of characterizing "Everclear" now that we have a new
+1600psi pressure sensor on the test stand.
+
+This was a 2-grain 54mm Everclear motor using a #24 nozzle.  Ignition was 
+with one of Terry's igniters, on Saturday at the Tripoli Colorado Spring 
+Fling event near Hartsel.
+
+The grains used were from the 21 May 2019 batch:
+
+* 21 May grain 4
+* 21 May grain 12 
+
+Small profile o-rings were used between grains, leaving the grains still 
+slightly "loose" in the case.  The buna-n o-rings on the nozzle and forward
+closure were lightly greased, and the liner exterior was heavily greased.
+
+## Results ##
+
+Test stand data in 2019-05-25-serial-3634-flight-0029.eeprom.

diff --git a/rockets/research/2019-test-4.mdwn b/rockets/research/2019-test-4.mdwn
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+# Test 2019-4 #
+
+This was a 3-grain 54mm Everclear motor using a #24 nozzle.  Ignition was 
+with one of Terry's igniters, on Saturday at the Tripoli Colorado Spring 
+Fling event near Hartsel.
+
+The grains used were from the 21 May 2019 batch:
+
+* 21 May grain 5
+* 21 May grain 14 
+* 21 May grain 7
+
+Small profile o-rings were used between grains, leaving the grains still 
+slightly "loose" in the case.  The buna-n o-rings on the nozzle and forward
+closure were lightly greased, and the liner exterior was heavily greased.
+
+## Results ##
+
+Test stand data in 2019-05-25-serial-3634-flight-0030-4.eeprom.
+
+There was a fairly significant liner burn-through in the middle of the first
+grain near the nozzle, burned-looking area was dime-sized, with maybe 1/4"
+"hole" in the middle.  Some extra ash on case there, but no obvious signs of
+weakening of the case.  Not sure what that was caused by?

diff --git a/rockets/research/2019-test-5.mdwn b/rockets/research/2019-test-5.mdwn
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+# Test 2019-5 #
+
+This was my second flight with "Everclear". 
+
+5 grain 54mm Everclear motor with #36 nozzle, using one 45-cal pyrodex
+pellet on an e-match for ignition.  Flown at Tripolo Colorado Spring Fling
+2019 on Sunday morning.
+
+The grains used were from the 21 May 2019 batch:
+
+* 21 May grain 6
+* 21 May grain 3
+* 21 May grain 16
+* 21 May grain 8
+* 21 May grain 2
+
+Used abou 16.75" of ARR liner.  Small profile o-rings were used between grains, 
+leaving the grains still slightly "loose" in the case.  The buna-n o-rings on
+the nozzle and forward closure were lightly greased, and the liner exterior 
+was heavily greased.
+
+## Results ##
+
+PFND.
+
+Tiny bit of liner burn-through at the junction between grains 6 and 3 (one
+grain forward of the nozzle).  The buna-n o-rings were pretty cooked on the 
+nozzle end, but no evidence of blow-by.
+
+Forgot to get pre-flight masses.  The post-flight mass of the airframe and 
+motor was 4140g.  That's complete except for maybe 3-5g in the ejection 
+charges, and of course the propellant consumed.
+
+Flight data in 2019-05-26-serial-1257-flight-0018.eeprom shows 9170 ft GPS
+apogee.

diff --git a/rockets/research/2019-test-6.mdwn b/rockets/research/2019-test-6.mdwn
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+# Test 2019-6 #
+
+This was a 4-grain 54mm Everclear motor using a #32 nozzle.  Ignition was 
+with one 45-cal pyrodex pellet on an e-match, on Sunday at the Tripoli 
+Colorado Spring Fling event near Hartsel.
+
+The grains used were from the 21 May 2019 batch:
+
+* 21 May grain 1
+* 21 May grain 5 
+* 21 May grain 11
+* 21 May grain 10
+
+Small profile o-rings were used between grains, leaving the grains still 
+slightly "loose" in the case.  The buna-n o-rings on the nozzle and forward
+closure were lightly greased, and the liner exterior was heavily greased.
+
+## Results ##
+
+Test stand data in 2019-05-25-serial-3634-flight-0030-5.eeprom.
+
+No liner burn-through, no discernable throat erosion, nozzle end o-rings
+were fairly cooked but no evidence of blow-by.

diff --git a/rockets/research/index.mdwn b/rockets/research/index.mdwn
index c3ddb9b2289b59e1969eb9a4b7fff3fb02d38862..6ce0de78647f2f56e54305431ccbeb2d7ad96214 100755 (executable)
--- a/rockets/research/index.mdwn
+++ b/rockets/research/index.mdwn
@@ -11,10 +11,15 @@
 
 ### 2019 ###
 
 
 ### 2019 ###
 

-* [2019 batch 01](2019.01.07.html) - 7 January 2018 - 4 54mm Everclear APCP grains
-* [2019 batch 02](2019.01.08.html) - 8 January 2018 - 4 54mm Everclear APCP grains
-* [2019 test 01](2019-test-1.html) - 28 April 2018 - 2-grain 54mm Everclear on test stand
-* [2019 batch 03](2019.05.21.html) - 21 May 2018 - 16 54mm Everclear APCP grains
+* [2019 batch 01](2019.01.07.html) - 7 January 2019 - 4 54mm Everclear APCP grains
+* [2019 batch 02](2019.01.08.html) - 8 January 2019 - 4 54mm Everclear APCP grains
+* [2019 test 01](2019-test-1.html) - 28 April 2019 - 2-grain 54mm Everclear on test stand
+* [2019 test 02](2019-test-2.html) - 4 May 2019 - first flight using Everclear
+* [2019 batch 03](2019.05.21.html) - 21 May 2019 - 16 54mm Everclear APCP grains
+* [2019 test 03](2019-test-3.html) - 25 May 2019 - 2-grain 54mm Everclear on test stand
+* [2019 test 04](2019-test-4.html) - 25 May 2019 - 3-grain 54mm Everclear on test stand
+* [2019 test 05](2019-test-5.html) - 26 May 2019 - second flight using Everclear
+* [2019 test 06](2019-test-6.html) - 26 May 2019 - 4-grain 54mm Everclear on test stand

 
 ### 2018 ###
 
 
 ### 2018 ###