The YF-100 is china's staged combustion engine (although they did "base"(steal) alot of its design off of the RD-120). its a RP-1 LO2 staged combustion engine that has flown on Long march 5, 6, and 7.

Thrust: 1,250 Kn

Isp: 300s SL

PowerCycle: Staged

Fuel: KeraLOX



  • Created On: Windows
  • Game Version:
  • Price: $8,432k
  • Number of Parts: 1045
  • Dimensions: 46m x 27m x 37m


  • Total Delta V: 802m/s
  • Total Thrust: 1.3MN
  • Engines: 1
  • Wet Mass: 1,218,915kg
  • Dry Mass: 925,476kg


Stage Engines Delta V Thrust Burn Mass
1 1 802m/s 1.3MN 656s 1,218,910kg


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  • Profile image
    135 Katherine

    Awesome build!

    7 days ago
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    8,211 MarioG

    @Snack its called xml the coding system used by the, this game nerfs isp, so in order to get real life Isp i had to mess with the chamber pressure and throat radius abd alter them to a unrealistic degree this dos not affect aything but Isp and thrust. this is how i make replicas.

    7 days ago
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    0 Snack

    Hey I was look at your BE-4 engine and this one and messed with the setting. Max chamber pressure was 2,500 mpa. I just wanted to know how you got it to go so high?

    +1 7 days ago
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    8,211 MarioG

    @pedro16797 voy a cambiar el pack todo en un golpe, voy hacer un update cuándo yo creo que tengo suficiente motores para hacer otro post

    11 days ago
  • Profile image
    7,742 pedro16797

    Algo que puedes hacer es añadir un enlace al post del foro de tu pack de motores en la descripcion de cada motor e ir actualizando la descripcion del post del foro para incluir todos los motores

    +1 11 days ago
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    8,211 MarioG

    @AtlantikWall45 hahaha lol

    11 days ago
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    Espionage Tech

    11 days ago


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