K543-BS Data (RockSim)
Accuracy of this data file:
| |
This File |
Certified |
± |
| Diameter |
75 mm |
76 mm |
−1% |
| Length |
787 mm |
813 mm |
−3% |
| Prop. Weight |
1,500 g |
500 g |
+200% |
| Total Weight |
3,600 g |
3,606 g |
= |
| Avg. Thrust |
621.6 N |
586.0 N |
+6% |
| Max. Thrust |
900.0 N |
2,128.5 N |
−58% |
| Total Impulse |
2,114.9 Ns |
2,096.0 Ns |
+1% |
| Burn Time |
3.4 s |
3.6 s |
−5% |
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Raw Data
<engine-database>
<engine-list>
<engine FDiv="10" FFix="1" FStep="-1." Isp="143.93" Itot="2117.26" Type="hybrid" auto-calc-cg="1" auto-calc-mass="1" avgThrust="588.128" burn-time="3.6" cgDiv="10" cgFix="1" cgStep="-1." code="K543" delays="1000" dia="75." exitDia="0." initWt="3600." len="787.4" mDiv="10" mFix="1" mStep="-1." massFrac="41.67" mfg="Contrail" peakThrust="900." propWt="1500." tDiv="10" tFix="1" tStep="-1." throatDia="0.">
<comments>Corrected 2026-09-23 from ThrustCurve.org simfile 5f4294d20002e9000000032a (user, RockSim).
Separated repeated timestamp(s): t=0 s (2 points moved to 0, 0.01 s). Each jump now takes at most 0.01 s instead of zero time; no thrust value changed.
Contrail Rockets Hybrid Rocket Motor (K543)
75mm-1400cc Motor Hardware w/ Slow Injector Kit and Nozzle
Black Smoke Reload
Data Input By Tom R. Sanders of Contrail Rockets LLC
</comments>
<data>
<eng-data cg="393.7" f="0." m="1500." t="0."/>
<eng-data cg="393.7" f="900." m="1500." t="0.01"/>
<eng-data cg="393.7" f="472.868" m="45.963" t="2.98992"/>
<eng-data cg="393.7" f="108.527" m="18.2877" t="3.1243"/>
<eng-data cg="393.7" f="0." m="0." t="3.6"/>
</data>
</engine>
</engine-list>
</engine-database>
You can also download the raw data points as a CSV file.
