RP-1 and the different tank materials that come with procedural tanks!

[sterben47]

I see videos of people saying that they unlocked new tank types, and what not while playing rp-1 on career mode, but i cant seem to find it.
i whent to the tech tree and researched early war materials, giving me an upgrade for my fuel tank, but when im on the vab i dont know where to find the button to upgrade it.

im using a normal install of the rp-1 with the recommended mods that they have on their gith hub, not much else extra...

[James Kerman]

Welcome to the forum @Sterben, your question has been moved to add-on discussions.

[Cattette]

The RP-1 fuel tank system is a bit all over the place. The fuel tank you get from the start are called seperate structures. Once you get some new tech you should be able to right click this tank in the VAB and switch material to aluminium, which is lighter than the default material. Once you advance further in tech you'll be able to unlock integral tanks, these should appear as seperate parts in the VAB, and they are way lighter than seperate structure tanks.

In conclusion, the earliest uppgrades you should be able to apply are available in the part menu of your seperate structure tanks.