is there any way of building this in survival?

Impressive build.

@Dave.Lister.2 Hey! It would be fantastic to be able to build subgrids in that way, but as far as I know there is no way to do that __SAFELY__. If I was to merge a subgrid into main grid, it would surely clang out as the component is now under tension, and tension is what invites clang. Sure you could merge everything together with a guiderail allowing projection, but as soon as it gets done it would explode ruining everything you have around it.

Hey Octo, would it be possible to put in temporary blocks to make the whole contraption one grid for survival? that can then be separated into it's operating parts.

@Dustfire A stratotanker? Oof, good suggestion but I don't want to build military vehicles. Plenty of other much greater builders exist for those and I'm all about that industry side of things ;)

Oh! What about one of those big flying tanker aircraft they use for mid-air refueling?

@Stranger-Come-Knocking We were all new once... and hey, even after a thousand and a half hours into this I'm still learning new tricks every time I boot up the game :)

@Dustfire Thank you! I've ran out of ideas on what to build next now that all the big mean machines are done...

Thanks man, I'm a total noob to this game, so still trying to figure it out

Absolutely brilliant, I've really enjoyed a lot of your 'Realistic' creations as of late! keep up the good work.

@Stranger-Come-Knocking I'm guessing you're talking about projecting the BCE in order to build it? In that case you're shit out of luck because projectors do not project subgrids (items attached to rotors) And boy does this build rely on those!
I recommend chopping it up in a creative world somewhere and creating blueprints for separate sub-assemblies which you then build and connect to the main vehicle in survival if that's your mode of choice. Though with the giant size you're gonna need a giant crane to do that... oh the joys of heavy industry ;)

Hey, when I try to use the projector in survival it says multiple grids are not supported, and only projects part of the BCE. Any advice?

Nice 3 excellent realistic models in a day.

However you should get some sleep.