M2281-BF Data (RockSim)
Accuracy of this data file:
| |
This File |
Certified |
± |
| Diameter |
75 mm |
75 mm |
= |
| Length |
1,492 mm |
1,524 mm |
−2% |
| Prop. Weight |
3,950 g |
1,306 g |
+202% |
| Total Weight |
5,579 g |
5,579 g |
= |
| Avg. Thrust |
2,848.6 N |
2,552.0 N |
+12% |
| Max. Thrust |
4,550.0 N |
6,040.0 N |
−25% |
| Total Impulse |
5,536.2 Ns |
5,482.0 Ns |
+1% |
| Burn Time |
1.9 s |
2.1 s |
−9% |
File Errors
File is usable, but has some problems:
- eng-data/t value "0" not after previous point
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Data Graph
File Notes
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Raw Data
<engine-database>
<engine-list>
<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.">
<comments>Contrail Rockets LLC. Hybrid Rocket Motor (M2281)
75mm-3200cc Motor Using Fast Injector Kit and Nozzle
Data Input By Tom R. Sanders of Contrail Rockets
</comments>
<data>
<eng-data cg="746.125" f="0." m="3950." t="0."/>
<eng-data cg="746.125" f="2725." m="3950." t="0."/>
<eng-data cg="746.125" f="4550." m="3430.93" t="0.2"/>
<eng-data cg="746.125" f="4550." m="2132.38" t="0.6"/>
<eng-data cg="746.125" f="4550." m="1483.1" t="0.8"/>
<eng-data cg="746.125" f="4000." m="1178.08" t="0.9"/>
<eng-data cg="746.125" f="2725." m="1058.13" t="0.95"/>
<eng-data cg="746.125" f="116.279" m="6.31855" t="1.98768"/>
<eng-data cg="746.125" f="0." m="0." t="2.14"/>
</data>
</engine>
</engine-list>
</engine-database>
You can also download the raw data points as a CSV file.
