I'm not sure what you are trying to ask, Danielost. You cannot upgrade from one hull size to another, if that is what you mean.

if you had looked at the upgrade pic you would have noticed that the ship being up graded was mother ship 1 where is the mother ship 1 in the upgrade list to the left

this is why i included the screen shot

i added more and better engines to the ship and then had to go out to the map to upgrade the ships becouse this screen isn't allowing you to upgrade here

Do not name your upgraded ship with the same name as the previous version.

I do not believe this is a bug. Name your new design with the new engines mother ship 2, instead of mother ship 1, and see what happens.

No, giving a new name will prevent the automatic fleet update from working and you will be forced to upgrade all your ships individually, bad idea Mistralok.

FYI you could just tick the 'upgrade all ships of this type' box in the upgrade dialog, rather than upgrading them one-by-one.

kryo is right

mystikmind is right

and moosetek i already knew that

No, giving a new name will prevent the automatic fleet update from working and you will be forced to upgrade all your ships individually, bad idea Mistralok.

I will remember this, Mystic, in case I ever want to go down the path of conquest. I play as a diplomat, and only keep enough ships in my fleet to keep the AI from breathing down my neck. Later on in the game, things tend to get a little tighter and more tense, and I generally have to build up my fleet rather quickly. By this time, though, I am pretty far up the tech tree, and the ships I build at that time are usually sufficient to get me through to the end of the game.

And if you are currently building ships with the name Mothership 1, then go to the shipyard and upgrade Mothership 1 and name the upgrade Mothership 2, all the ships building Mothership 1 will revert to building Mothership 2.

Thanks, Moose. This is what I meant to say; rereading my post I didn't even come close to getting my point across.