St. Elmo
St. Elmo is Knights of St. John naval unit in Age of Empires III, available from the Commerce Age. Its listed ability is Transports land units.

Recorded values
- Available
- Commerce Age
- Training
- 80 XP per train
- Durability & mobility
- 3,000 hit points · 50% ranged resistance · 8.5 speed · 44 line of sight
- Ranged attack
- 82 base damage · range 20 · attack interval 2.0 · area of effect 1
- Broadside attack
- 35 (6) base damage · range 30 · attack interval 0.05 · area of effect 1 · bonus damage: 2.0x vs. Ship
- Ability
- Transports land units
Role, availability & values
It has 3,000 hit points and 50% ranged resistance. It moves at 8.5 speed. Attack profile: Ranged attack: 82 damage at range 20; every 2.0 seconds; area of effect 1. Broadside attack: 35 damage (6) at range 30; every 0.05 seconds; area of effect 1. Special ability or role: Transports land units.
Matchup & timing
Use St. Elmo as a durable Knights of St. John troop transport: its 3,000 hit points give a large margin for carrying a landing force, but its primary utility is still getting units ashore. Choose a beach the army can hold and unload under naval cover. Avoid sailing into concentrated fire simply because the ship is tougher than ordinary transports.
Transport the landing force under naval cover
St. Elmo has 3,000 hit points, 8.5 speed, and 50% ranged resistance. Its transport role can move land units, while its 82-damage ranged siege attack reaches 20 and its 35-damage broadside reaches 30. Use it to ferry troops where the shoreline permits, but scout enemy ships and protect the transport during the landing.
Plan the transport landing
Its land-transport ability gives the Knights of St. John a way to move troops over water, while the 20-range siege attack and broadside can pressure naval or coastal targets. Load the landing force before approaching contested shore, scout the enemy fleet, and avoid leaving the transport isolated once units disembark.