                              Command : UPGRADE

 SYNTAX:
   [##:##] Command: upgrade <SHIP/FLEET>

The upgrade command allows a country to set the tech level of its ships to the
country's current tech level.

Each ship to be upgraded must be in one of the country's harbors  that  is  at
least  60%  efficient and has an available workforce of at least half the size
it would take to build the ship from scratch.  To be upgraded, a ship must  be
at least 60% efficient.

Refitting a ship costs half as much as building a new  one  from  scratch  and
reduces  the  efficiency of the ship by 35%.  Strangely, refitting a ship does
not use up any material.

See also : build, ship, technology

