Extension module for future rocket modifications planning

[Tobruk]

By extension I mean a module that is the size of a normal rocket modules but weighs nothing (could look like metal scaffolding) and can be built over with a functional module later.

 

Rockets can be sent with extensions attached no problem so you can adjust for other planets later.

[SharraShimada]

And what use would it have? You can already build just science or sightseeing-modules instead, and replace them when you want another one, without dismantling the whole rocket. They only cost 10kg of whatever fuel you use, and so would your barebone-module, because it would have mass.

[Tobruk]

16 hours ago, SharraShimada said:

And what use would it have? You can already build just science or sightseeing-modules instead, and replace them when you want another one, without dismantling the whole rocket. They only cost 10kg of whatever fuel you use, and so would your barebone-module, because it would have mass.

Didn't think of using sightseeing thx