3 <engine FDiv="10" FFix="1" FStep="-1." Isp="208.09" Itot="19.59" Type="single-use" auto-calc-cg="1" auto-calc-mass="1" avgThrust="20.841" burn-time="0.94" cgDiv="10" cgFix="1" cgStep="-1." code="D21" delays="4,7" dia="18." exitDia="0." initWt="25." len="70." mDiv="10" mFix="1" mStep="-1." massFrac="38.4" mfg="Aerotech" peakThrust="32.12" propWt="9.6" tDiv="10" tFix="1" tStep="-1." throatDia="0.">
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4 <comments>Aerotech D21 RASP.ENG file made from NAR published data
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5 File produced July 4, 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="9.6" t="0."/>
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14 <eng-data cg="35." f="1.367" m="9.59665" t="0.01"/>
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15 <eng-data cg="35." f="19.367" m="9.54077" t="0.021"/>
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16 <eng-data cg="35." f="32.12" m="9.43985" t="0.029"/>
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17 <eng-data cg="35." f="31.667" m="9.31481" t="0.037"/>
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18 <eng-data cg="35." f="30.528" m="9.10147" t="0.051"/>
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19 <eng-data cg="35." f="30.074" m="8.46298" t="0.094"/>
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20 <eng-data cg="35." f="31.213" m="8.14763" t="0.115"/>
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21 <eng-data cg="35." f="30.074" m="7.87734" t="0.133"/>
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22 <eng-data cg="35." f="30.76" m="7.2215" t="0.177"/>
\r
23 <eng-data cg="35." f="29.842" m="7.04331" t="0.189"/>
\r
24 <eng-data cg="35." f="30.528" m="6.83623" t="0.203"/>
\r
25 <eng-data cg="35." f="29.842" m="6.49602" t="0.226"/>
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26 <eng-data cg="35." f="28.935" m="5.79035" t="0.275"/>
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27 <eng-data cg="35." f="29.389" m="5.49025" t="0.296"/>
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28 <eng-data cg="35." f="28.027" m="4.99787" t="0.331"/>
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29 <eng-data cg="35." f="25.971" m="3.80712" t="0.421"/>
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30 <eng-data cg="35." f="24.146" m="3.10718" t="0.478"/>
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31 <eng-data cg="35." f="20.728" m="1.99669" t="0.579"/>
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32 <eng-data cg="35." f="17.774" m="1.242" t="0.659"/>
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33 <eng-data cg="35." f="14.356" m="0.612201" t="0.739"/>
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34 <eng-data cg="35." f="9.569" m="0.260477" t="0.799"/>
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35 <eng-data cg="35." f="4.557" m="0.0770365" t="0.852"/>
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36 <eng-data cg="35." f="1.139" m="0.0114421" t="0.899"/>
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37 <eng-data cg="35." f="0." m="0." t="0.94"/>
\r