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-162Max Pressure:5.92 MPa (859 psi)
Total Impulse:216 NsSpecific Impulse:133 s
Max Thrust:206 NVolume Loading:70%
Average Thrust:162 NFuel 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
Rating:43% H-162Max Pressure:859 psi
Total Impulse:48.5 lbf·sSpecific Impulse:133 s
Max Thrust:46.4 lbfVolume Loading:70%
Average Thrust:36.4 lbfFuel Mass:5.82 oz
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- - - -
29mm 6-grain Erythritol #14
Rating:43% H-162Max Pressure:5.92 MPa
Total Impulse:216 NsSpecific Impulse:133 s
Max Thrust:206 NVolume Loading:70%
Average Thrust:162 NFuel Mass:165 g
null
- -

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