Talk:Winter 2018 Event/@comment-2001:E68:5411:E0FE:644C:5D5:D96C:6557-20180304142027/@comment-460323-20180304143844

For the fleet to be fast+, all the ships in the fleet must be fast+, which usually requires 1 turbine + 1 engine for fast ship or 1 turbine + 2 engines for slow ship.

Since it is impractical to gimp your FBBs by replacing their AP shell with engine, the fast+ thing is more of a scientific indulgence than anything of practical value.