How can I make a mod so TFTD ships don't require Zrbite?

[Poduke]

Requiring Zrbite for fuel makes the game harder, but I just don't use those ships because of the requirement.  I don't use the Avenger/Leviathan until the last mission and so I miss out using those ships.
I tried making a mod using this code(and it doesn't work):

Code: [Select]

crafts:
  - type: STR_HAMMERHEAD
    refuelItem: []
  - type: STR_LEVIATHAN
    refuelItem: []
  - type: STR_MANTA
    refuelItem: []
I first tried this next bit of code but my ships required item "0" to refuel:

Code: [Select]

crafts:
  - type: STR_HAMMERHEAD
    refuelItem: 0
  - type: STR_LEVIATHAN
    refuelItem: 0
  - type: STR_MANTA
    refuelItem: 0
Can anyone help me with this simple mod?

[Warboy1982]

try ""

[Poduke]

That worked. Thanks for the help.