X-Git-Url: https://git.gag.com/?p=web%2Fgag.com;a=blobdiff_plain;f=rockets%2Fresearch%2F2017-batch-03.mdwn;h=49d89ace0c5923df034ff2561393b8959b110c3c;hp=316d4400100254426244de925de5bf42a7a548ee;hb=557f233a4474d20b87760499970ce618588d680b;hpb=eebbb70cf14ef9448fc3d0934072343d4e5d1710
diff --git a/rockets/research/2017-batch-03.mdwn b/rockets/research/2017-batch-03.mdwn
index 316d440..49d89ac 100755
--- a/rockets/research/2017-batch-03.mdwn
+++ b/rockets/research/2017-batch-03.mdwn
@@ -14,26 +14,24 @@ increased during melting to 300F indicated.
These grains were cast on 31 May 2017.
-Liner should be cut to 10.00" long for this 6-grain reload.
+Liner should be cut to 10.00" long for this 6-grain reload. Simulation says:
+
+
+
29mm 6-grain Erythritol #14 |
---|
Rating: | 43% H-162 | Max Pressure: | 5.92 MPa (859 psi) |
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Total Impulse: | 216 Ns | Specific Impulse: | 133 s |
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Max Thrust: | 206 N | Volume Loading: | 70% |
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Average Thrust: | 162 N | Fuel Mass: | 165 g |
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|
+
+
## Results ##
-* Grain 1, 176.1g gross, ?g net
-* Grain 2, 187.8g gross, ?g net
-* Grain 3, 187.6g gross, ?g net
-* Grain 4, 185.8g gross, ?g net
-* Grain 5, 187.9g gross, ?g net
-* Grain 6, 188.3g gross, ?g net
+Average casting tube mass 1.13g.
+
+* Grain 1, ?g gross, ?g net
+* Grain 2, ?g gross, ?g net
+* Grain 3, ?g gross, ?g net
+* Grain 4, ?g gross, ?g net
+* Grain 5, ?g gross, ?g net
+* Grain 6, ?g gross, ?g net
With a 10.00" liner, 14/64" nozzle throat, buna-n o-rings, simulation says
this makes a 37% H-156, 208 Ns, with about a 1.2 sec burn.
-
-29mm 6-grain Erythritol #14 |
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Rating: | 43% H-162 | Max Pressure: | 859 psi |
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Total Impulse: | 48.5 lbf·s | Specific Impulse: | 133 s |
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Max Thrust: | 46.4 lbf | Volume Loading: | 70% |
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Average Thrust: | 36.4 lbf | Fuel Mass: | 5.82 oz |
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|
-
-
-
-29mm 6-grain Erythritol #14 |
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Rating: | 43% H-162 | Max Pressure: | 5.92 MPa |
---|
Total Impulse: | 216 Ns | Specific Impulse: | 133 s |
---|
Max Thrust: | 206 N | Volume Loading: | 70% |
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Average Thrust: | 162 N | Fuel Mass: | 165 g |
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|
-
-
-