Catapult Trireme

In Age of Empires, the Catapult Trireme is a large naval unit with a catapult mounted on top of the deck. It fires every 3 seconds and throws large rocks and boulders at enemy targets in long distances. Once the Trireme has been upgraded, the technology which enables Catapult Trireme becomes available at the Dock.

Upgrades

 * Alchemy increases attack by 1
 * Ballistics increases accuracy
 * Engineering increases range by 2

Civilization Bonuses

 * Phoenician naval siege units fire 66% faster.
 * Minoan naval units costs 30% less.
 * Yamato naval units have 30% more HP

Strategy
It has fewer hitpoints and fires slower than its original counterpart, but fills it up with strength per projectile, more range and leaves destruction into a certain location rather than a single unit of space. Because of it's relative low amount of hit points compared to other units, a successful naval victory through a full scale assault can be obtained by escorting them with a large group of triremes.

Being a Trireme, it is not a upgrade to Trireme itself, but a seperate unit. It can be upgraded into a Juggernaut once engineering is fully researched. It benefits from such researches as Alchemy for its attack strength, Ballistics for its accuracy and Engineering for its range.