Spaceflight Simulator Wiki
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Parts Expansion Required
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An engine base is a part that is a fuel tank but with fins. They vary in size from 6 wide. The smallest one is free. They can be used for decorations and hiding an engine's top.

The 6-wide engine base has only 2 fins but bigger ones have 4 fins.

The engine base can be clipped/connected to an engine and connected to another fuel tank on top.


  1. Decorative purposes
  2. Covering engines
  3. Hiding engine's top


  • This was added in 1.5.3, for a temporary replacement for fins. But fins are later added in a later update, but they still remain.
  • The part's size is 1 block taller than the small-medium fuel tank.
  • The wider engine bases are based on the Saturn V while the 6-wide engine base have a similarity to the Atlas-Agena and Atlas-Centaur.

Basics ParachuteCapsuleHeat ShieldSeparatorFuel TanksHawk EngineValiant EngineKolibri EnginePeregrine EngineRCS ThrustersSide SeparatorSolid Rocket BoostersAerodynamic Nose ConeLanding Leg
6 Wide 6 Wide Aerodynamic Nose ConeFuel TanksSeparatorHeat ShieldEngine Base
8 Wide 8 Wide Aerodynamic Nose ConeFuel TanksSeparatorHeat ShieldEngine Base
10 Wide Fuel TanksSeparatorHeat ShieldEngine Base
12 Wide Fuel TanksSeparatorHeat ShieldEngine Base
Engines Titan EngineFrontier EngineHawk EnginePeregrine EngineValiant EngineKolibri EngineRCS ThrustersIon Engine
Aerodynamic Parts ParachuteSide ParachuteAerodynamic Nose ConeAerodynamic Fuselage
Fairings Fairing
Structural Structural Part
Other Docking PortLanding LegsIon EngineProbeRCS ThrustersWheelsSolar PanelFuel Pipe
Currently removed in Version 1.5
Removed in older versions
Probe (Large)Fairing AdapterAdapter