22

What does the Millennium Falcon use for fuel (and how big is the fuel tank)?

25

Sublight Engines

According to the (canon) Force Awakens: Incredible Cross-Sections, the Falcon uses

liquid metal fuel

to power its sublight engines. There's no indication which metal.

enter image description here

You can see the fuel tank on this earlier (and non-canon but still excellent) plan from Star Wars: Incredible Cross-Sections. Assuming it's hollow, the tank depicted appears to be around 3-4000 litres in volume.

enter image description here


Hyperdrive Engines

The Hyperdrive engine is powered by ejecting

Hypermatter particles

The tanks are sufficiently large for them to cross half of the galaxy without refuelling.

  • 28
    In other words, it takes leaded – Machavity Jan 29 '18 at 21:48
  • 24
    @Machavity - No wonder Han is so mercurial... – Valorum Jan 29 '18 at 21:49
  • 8
    3,000-4,000 liters is quite a lot of T-1000s, if you think about it. Refueling must be pretty dangerous. Kind of surprised they never showed that process in any of the films; could have made for a pretty epic action sequence, with the right director. – Trevor Powell Jan 29 '18 at 22:47
  • 28
    "The liquid fuel sublimates into a poisonous gas"... Somebody needs to be taught the meaning of sublimation. – silvascientist Jan 30 '18 at 2:26
  • 6
    @Lexible It's simple terminology. Solids sublimate, liquids vaporize. – JAB Jan 30 '18 at 5:33
19

TLDR: liquid metal fuel

As suggested by @JohnP, From the Wookipedia, YT-1300 light_freighter it is stated that the YT-1300 (the model of Millennium Falcon) use fuel cells powered by liquid metal fuel.

Another canon source is the Star Wars Millennium Falcon YT-1300 A 3-D Owner's Guide written by Ryder Windham himself :

Edit: as @Valorum says, those sources are not considered canon but rather "Legends" i.e. pre-2014 canon, subject to change. YT-1300 Propulsion

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