Recruiting Again, A Submarine from Another World? His Highness's Beloved (2)

"Lord Thotmudo, I have a question.

"Can alchemical technology be used to create steel ships that can travel rapidly underwater?

"Underwater steel ships?" Thotmudo looked puzzled for a moment, then furrowed his brow in thought. "I haven't heard of such ships, but it sounds very interesting."

"Unlike on the surface of the sea, if you want to travel underwater, you must consider the steel's sealing and water pressure resistance, which places great demands on the type of steel and alchemical craftsmanship.

At the same time, when underwater, the conventional weaponry used on warships wouldn't work, so we might need other weapons capable of attacking underwater. Perhaps we can draw inspiration from the sea clan's methods of attack...

However, the propulsion system might be similar to the propellers used on surface ships since they both operate in water..."