3 <engine FDiv="10" FFix="1" FStep="-1." Isp="142.92" Itot="5536.15" Type="hybrid" auto-calc-cg="1" auto-calc-mass="1" avgThrust="2586.99" burn-time="2.14" cgDiv="10" cgFix="1" cgStep="-1." code="M2281" delays="1000" dia="75." exitDia="0." initWt="5579." len="1492.25" mDiv="10" mFix="1" mStep="-1." massFrac="70.8" mfg="Contrail" peakThrust="4550." propWt="3950." tDiv="10" tFix="1" tStep="-1." throatDia="0.">
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4 <comments>Contrail Rockets LLC. Hybrid Rocket Motor (M2281)
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5 75mm-3200cc Motor Using Fast Injector Kit and Nozzle
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6 Data Input By Tom R. Sanders of Contrail Rockets
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9 <eng-data cg="746.125" f="0." m="3950." t="0."/>
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10 <eng-data cg="746.125" f="2725." m="3950." t="0."/>
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11 <eng-data cg="746.125" f="4550." m="3430.93" t="0.2"/>
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12 <eng-data cg="746.125" f="4550." m="2132.38" t="0.6"/>
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13 <eng-data cg="746.125" f="4550." m="1483.1" t="0.8"/>
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14 <eng-data cg="746.125" f="4000." m="1178.08" t="0.9"/>
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15 <eng-data cg="746.125" f="2725." m="1058.13" t="0.95"/>
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16 <eng-data cg="746.125" f="116.279" m="6.31855" t="1.98768"/>
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17 <eng-data cg="746.125" f="0." m="0." t="2.14"/>
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