K300-BS Data (RockSim)
Accuracy of this data file:
| |
This File |
Certified |
± |
| Diameter |
75 mm |
75 mm |
= |
| Length |
1,016 mm |
1,016 mm |
= |
| Prop. Weight |
181 g |
580 g |
−69% |
| Total Weight |
4,059 g |
4,059 g |
= |
| Avg. Thrust |
326.9 N |
293.0 N |
+12% |
| Max. Thrust |
526.9 N |
690.0 N |
−24% |
| Total Impulse |
1,902.0 Ns |
1,909.0 Ns |
= |
| Burn Time |
5.8 s |
6.5 s |
−10% |
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Raw Data
<engine-database>
<engine-list>
<engine FDiv="10" FFix="1" FStep="-1." Isp="1071.53" Itot="1901.966055" Type="hybrid" auto-calc-cg="1" auto-calc-mass="1" avgThrust="292.610162" burn-time="6.5" cgDiv="10" cgFix="1" cgStep="-1." code="K300" delays="1000" dia="75." exitDia="0." initWt="4059." len="1016." mDiv="10" mFix="1" mStep="-1." massFrac="4.46" mfg="Contrail" peakThrust="526.943" propWt="181." tDiv="10" tFix="1" tStep="-1." throatDia="0.">
<comments>Corrected 2026-09-23; supersedes ThrustCurve.org simfile 5f4294d20002e90000000326 (user, RockSim).
Rise to 431 N moved to 0.05 s per the Contrail K300BS cert letter.
K-300-BS
75mm/40 Inch Hardware
2050cc
Slow Nozzle
</comments>
<data>
<eng-data cg="508." f="0" m="181" t="0"/>
<eng-data cg="508." f="431.135" m="179.974279" t="0.05"/>
<eng-data cg="508." f="526.943" m="167.465727" t="0.324385"/>
<eng-data cg="508." f="479.039" m="135.875674" t="0.98434"/>
<eng-data cg="508." f="369.545" m="128.197467" t="1.1745"/>
<eng-data cg="508." f="280.58" m="9.857651" t="5"/>
<eng-data cg="508." f="171.085" m="5.770869" t="5.19016"/>
<eng-data cg="508." f="102.651" m="3.585535" t="5.35794"/>
<eng-data cg="508." f="54.7473" m="1.574936" t="5.6264"/>
<eng-data cg="508." f="27.3737" m="0.919334" t="5.79418"/>
<eng-data cg="508." f="0" m="0" t="6.5"/>
</data>
</engine>
</engine-list>
</engine-database>
You can also download the raw data points as a CSV file.
