J245-BG Data (RockSim)
Accuracy of this data file:
| |
This File |
Certified |
± |
| Diameter |
54 mm |
54 mm |
= |
| Length |
711 mm |
719 mm |
−1% |
| Prop. Weight |
100 g |
450 g |
−78% |
| Total Weight |
1,550 g |
1,550 g |
= |
| Avg. Thrust |
255.1 N |
245.3 N |
+4% |
| Max. Thrust |
444.8 N |
681.1 N |
−35% |
| Total Impulse |
640.1 Ns |
643.5 Ns |
−1% |
| Burn Time |
2.5 s |
2.6 s |
−4% |
Add this file to my outbox.
Data Graph
File Notes
Do you have a comment on this file?
Please add a note.
Raw Data
<engine-database>
<engine-list>
<engine FDiv="10" FFix="1" FStep="-1." Isp="652.77" Itot="640.146959" Type="hybrid" auto-calc-cg="1" auto-calc-mass="1" avgThrust="244.330901" burn-time="2.62" cgDiv="10" cgFix="1" cgStep="-1." code="J245" delays="1000" dia="54." exitDia="0." initWt="1550." len="711.2" mDiv="10" mFix="1" mStep="-1." massFrac="6.45" mfg="Contrail" peakThrust="444.822" propWt="100." tDiv="10" tFix="1" tStep="-1." throatDia="0.">
<comments>Corrected 2026-09-23; supersedes ThrustCurve.org simfile 5f4294d20002e90000000317 (user, RockSim).
Rise to 444.8 N moved to 0.02 s per the Contrail J245BG cert letter.
J-245-BG Reload
Slow Nozzle
54mm/28 Inch Hardware
</comments>
<data>
<eng-data cg="355.6" f="0" m="100" t="0"/>
<eng-data cg="355.6" f="444.822" m="99.305125" t="0.02"/>
<eng-data cg="355.6" f="355.858" m="91.811668" t="0.139821"/>
<eng-data cg="355.6" f="307.954" m="44.545157" t="1.05145"/>
<eng-data cg="355.6" f="184.772" m="5.58602" t="2.06376"/>
<eng-data cg="355.6" f="102.651" m="3.451496" t="2.15884"/>
<eng-data cg="355.6" f="68.4342" m="1.807317" t="2.28188"/>
<eng-data cg="355.6" f="0" m="0" t="2.62"/>
</data>
</engine>
</engine-list>
</engine-database>
You can also download the raw data points as a CSV file.
