H73J Data (RockSim)
Accuracy of this data file:
| |
This File |
Certified |
± |
| Diameter |
38 mm |
38 mm |
= |
| Length |
154 mm |
152 mm |
+1% |
| Prop. Weight |
140 g |
143 g |
−2% |
| Total Weight |
308 g |
309 g |
= |
| Avg. Thrust |
70.2 N |
73.0 N |
−4% |
| Max. Thrust |
94.6 N |
97.1 N |
−3% |
| Total Impulse |
188.2 Ns |
185.6 Ns |
+1% |
| Burn Time |
2.7 s |
2.6 s |
+5% |
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Data Graph
File Notes
| Thrust curve data
| Joseph Avins
| February 14, 2025
| |
This is the data copied from the .eng file also here on this site.
|
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Raw Data
<engine-database>
<engine-list>
<engine FDiv="10" FFix="1" FStep="-1." Isp="131.14" Itot="180.052" Type="reloadable" auto-calc-cg="1" auto-calc-mass="1" avgThrust="51.443" burn-time="3.5" cgDiv="10" cgFix="1" cgStep="-1." code="H73J" delays="6,10" dia="38." exitDia="0." initWt="308.3" len="154." mDiv="10" mFix="1" mStep="-1." massFrac="45.41" mfg="Aerotech" peakThrust="69.57" propWt="140." tDiv="10" tFix="1" tStep="-1." throatDia="0.">
<data>
<eng-data cg="77." f="0.00" m="143.00" t="0.00"/>
<eng-data cg="77." f="49.25" m="141.95" t="0.06"/>
<eng-data cg="77." f="82.00" m="136.17" t="0.17"/>
<eng-data cg="77." f="82.13" m="129.00" t="0.29"/>
<eng-data cg="77." f="84.60" m="121.66" t="0.40"/>
<eng-data cg="77." f="86.88" m="114.04" t="0.52"/>
<eng-data cg="77." f="88.89" m="106.36" t="0.64"/>
<eng-data cg="77." f="89.65" m="98.50" t="0.75"/>
<eng-data cg="77." f="91.34" m="90.53" t="0.87"/>
<eng-data cg="77." f="92.98" m="82.48" t="0.98"/>
<eng-data cg="77." f="94.57" m="74.15" t="1.10"/>
<eng-data cg="77." f="94.64" m="65.81" t="1.22"/>
<eng-data cg="77." f="93.55" m="57.59" t="1.33"/>
<eng-data cg="77." f="91.45" m="49.44" t="1.45"/>
<eng-data cg="77." f="88.19" m="41.60" t="1.56"/>
<eng-data cg="77." f="82.44" m="34.02" t="1.68"/>
<eng-data cg="77." f="77.40" m="26.98" t="1.79"/>
<eng-data cg="77." f="70.77" m="20.51" t="1.91"/>
<eng-data cg="77." f="61.17" m="14.69" t="2.03"/>
<eng-data cg="77." f="51.16" m="9.75" t="2.14"/>
<eng-data cg="77." f="38.54" m="5.80" t="2.26"/>
<eng-data cg="77." f="21.56" m="3.15" t="2.37"/>
<eng-data cg="77." f="12.21" m="1.66" t="2.49"/>
<eng-data cg="77." f="7.33" m="0.81" t="2.60"/>
<eng-data cg="77." f="3.71" m="0.32" t="2.72"/>
<eng-data cg="77." f="1.78" m="0.08" t="2.84"/>
<eng-data cg="77." f="0.00" m="0.00" t="2.95"/>
</data>
</engine>
</engine-list>
</engine-database>
You can also download the raw data points as a CSV file.
