3 <engine FDiv="10" FFix="1" FStep="-1." Isp="81.38" Itot="16.839" Type="single-use" auto-calc-cg="1" auto-calc-mass="1" avgThrust="10.206" burn-time="1.65" cgDiv="10" cgFix="1" cgStep="-1." code="D12" delays="0,3,5,7" dia="24." exitDia="0." initWt="42.6" len="70." mDiv="10" mFix="1" mStep="-1." massFrac="49.53" mfg="Estes" peakThrust="29.73" propWt="21.1" tDiv="10" tFix="1" tStep="-1." throatDia="0.">
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4 <comments>Estes D12 RASP.ENG file made from NAR published data
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5 File produced October 3, 2000
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6 The total impulse, peak thrust, average thrust and burn time are
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7 the same as the averaged static test data on the NAR web site in
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8 the certification file. The curve drawn with these data points is as
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9 close to the certification curve as can be with such a limited
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10 number of points (32) allowed with wRASP up to v1.6.
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13 <eng-data cg="35." f="0." m="21.1" t="0."/>
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14 <eng-data cg="35." f="2.569" m="21.0211" t="0.049"/>
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15 <eng-data cg="35." f="9.369" m="20.52" t="0.116"/>
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16 <eng-data cg="35." f="17.275" m="19.3849" t="0.184"/>
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17 <eng-data cg="35." f="24.258" m="18.0058" t="0.237"/>
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18 <eng-data cg="35." f="29.73" m="16.4837" t="0.282"/>
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19 <eng-data cg="35." f="27.01" m="15.9505" t="0.297"/>
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20 <eng-data cg="35." f="22.589" m="15.5154" t="0.311"/>
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21 <eng-data cg="35." f="17.99" m="15.2358" t="0.322"/>
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22 <eng-data cg="35." f="14.126" m="14.7126" t="0.348"/>
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23 <eng-data cg="35." f="12.099" m="14.0882" t="0.386"/>
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24 <eng-data cg="35." f="10.808" m="13.2846" t="0.442"/>
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25 <eng-data cg="35." f="9.876" m="11.9368" t="0.546"/>
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26 <eng-data cg="35." f="9.306" m="9.86976" t="0.718"/>
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27 <eng-data cg="35." f="9.105" m="8.01266" t="0.879"/>
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28 <eng-data cg="35." f="8.901" m="5.9031" t="1.066"/>
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29 <eng-data cg="35." f="8.698" m="3.79713" t="1.257"/>
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30 <eng-data cg="35." f="8.31" m="1.88974" t="1.436"/>
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31 <eng-data cg="35." f="8.294" m="0.287726" t="1.59"/>
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32 <eng-data cg="35." f="4.613" m="0.109825" t="1.612"/>
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33 <eng-data cg="35." f="0." m="0." t="1.65"/>
\r