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From Pathfinder Battlecry!, which isn't enabled.

Ironclad

VEHICLE 20
Price 220,000 gp
Space 50 feet long, 100 feet wide, 20 feet high
Crew 1 pilot, 19 crew
Passengers 30
Piloting Check Arcana (DC 42) or Sailing Lore (DC 40)

AC 44; Fort +34
Hardness 20, HP 320 (BT 160); Immunities precision

Speed swim 40 feet (magical)
Collision 14d10 (DC 40)
Space

100 feet long, 60 feet wide, 20 feet high

Sluggish

This vehicle must move twice its length for each 90-degree turn it makes.

Weapon Mounts

This vehicle has four weapon mounts, two on each side of the vehicle. At purchase, these weapon mounts are initially empty. Installing or uninstalling a weapon into a mount requires 1 day, a successful DC 40 Crafting check, and an appropriate weapon. The weapon mounts can be equipped with Huge or smaller ranged siege weapons.

Description This heavy gunboat features solid hardwood timbers covered with thick iron plates riveted together to protect the portions of the vessel above the waterline. These timbers slope inboard at an angle to reduce the effectiveness of siege projectiles and cannon shots. The vessel is powered by a twin pair of propellers spun by steam from boilers that are magically fired, yielding glowing blue smoke through its twin pair of smokestacks. Ironclads are so formidable that a single one has been known to blockade an entire port by itself against more traditional wooden ships.
Pathfinder Battlecry!ORC