|First Appearance||Age of Empires III|
|Cost||100 Wood |
|Age Available||Industrial Age|
|Base Hit Points||350|
|Resists||75% vs. Ranged|
|Siege Multipliers||x3.0 vs. Ship|
x0.75 vs. Artillery
x0.5 vs. Arrow Knight
Rockets are an artillery unit available to the British as a replacement for the Heavy Cannon. They are one of the two unique units produced from the Factory, the other being the Great Bombard. They have a faster rate of fire than both the Heavy Cannon or the Great Bombard. They are as effective against infantry units as they are buildings due to their high rate of fire and high attack.
- 2 Congreve Rockets
- 3 Congreve Rockets
- 2 Rockets
Hidden Cost Edit
Training these units at a factory requires 98 seconds (93 with Team Engineering School sent by a Chinese ally). The average gather rate of a Factory is 5.5 every second (before the building upgrade (+20%)). This means that Heavy Artillery produced from a Factory, while appearing to be free, will have a cost dependent upon how effective the factory gathers a needed resource. In many cases this cost can exceed the base value (600 resources) of the unit.