H238T Data (RockSim)
Accuracy of this data file:
| |
This File |
Certified |
± |
| Diameter |
29 mm |
29 mm |
= |
| Length |
194 mm |
194 mm |
= |
| Prop. Weight |
83 g |
83 g |
= |
| Total Weight |
196 g |
196 g |
= |
| Avg. Thrust |
189.2 N |
238.0 N |
−20% |
| Max. Thrust |
229.3 N |
263.4 N |
−13% |
| Total Impulse |
177.6 Ns |
165.5 Ns |
+7% |
| Burn Time |
0.9 s |
0.7 s |
+32% |
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Raw Data
<engine-database>
<engine-list>
<engine FDiv="10" FFix="1" FStep="-1." Isp="217.10" Itot="177.562079" Type="reloadable" auto-calc-cg="1" auto-calc-mass="1" avgThrust="171.391968" burn-time="1.036" cgDiv="10" cgFix="1" cgStep="-1." code="H238T" delays="6,10,14" dia="29." exitDia="0." initWt="196." len="194." mDiv="10" mFix="1" mStep="-1." massFrac="42.55" mfg="Aerotech" peakThrust="229.324" propWt="83.4" tDiv="10" tFix="1" tStep="-1." throatDia="0.">
<comments>Corrected 2026-09-23; supersedes ThrustCurve.org simfile 5f4294d20002e9000000039c (user, RockSim).
Data of ThrustCurve simfile 5f4294d20002e90000000017 (RASP/cert) for this motor, converted to RockSim format; it replaces a curve that was wrong (see the audit).
</comments>
<data>
<eng-data cg="97.5" f="0" m="83.4" t="0"/>
<eng-data cg="97.5" f="173.1" m="82.62761" t="0.019"/>
<eng-data cg="97.5" f="206.876" m="79.058155" t="0.059"/>
<eng-data cg="97.5" f="211.036" m="75.034186" t="0.1"/>
<eng-data cg="97.5" f="214.353" m="70.938224" t="0.141"/>
<eng-data cg="97.5" f="217.113" m="66.885077" t="0.181"/>
<eng-data cg="97.5" f="219.343" m="62.682553" t="0.222"/>
<eng-data cg="97.5" f="221.034" m="58.442275" t="0.263"/>
<eng-data cg="97.5" f="224.951" m="54.252738" t="0.303"/>
<eng-data cg="97.5" f="229.324" m="49.87864" t="0.344"/>
<eng-data cg="97.5" f="229.308" m="45.570298" t="0.384"/>
<eng-data cg="97.5" f="228.558" m="41.161623" t="0.425"/>
<eng-data cg="97.5" f="226.573" m="36.779282" t="0.466"/>
<eng-data cg="97.5" f="222.365" m="32.562005" t="0.506"/>
<eng-data cg="97.5" f="219.205" m="28.31024" t="0.547"/>
<eng-data cg="97.5" f="217.75" m="24.102911" t="0.588"/>
<eng-data cg="97.5" f="213.35" m="20.053202" t="0.628"/>
<eng-data cg="97.5" f="208.07" m="15.995456" t="0.669"/>
<eng-data cg="97.5" f="200.966" m="12.153014" t="0.709"/>
<eng-data cg="97.5" f="196.988" m="8.321216" t="0.75"/>
<eng-data cg="97.5" f="151.387" m="4.966802" t="0.791"/>
<eng-data cg="97.5" f="96.273" m="2.640309" t="0.831"/>
<eng-data cg="97.5" f="59.475" m="1.140652" t="0.872"/>
<eng-data cg="97.5" f="18.621" m="0.407026" t="0.912"/>
<eng-data cg="97.5" f="7.986" m="0.150834" t="0.953"/>
<eng-data cg="97.5" f="3.697" m="0.035597" t="0.995"/>
<eng-data cg="97.5" f="0" m="0" t="1.036"/>
</data>
</engine>
</engine-list>
</engine-database>
You can also download the raw data points as a CSV file.
