A man from the military made very strong ships, including the famous turtle ship.

Also, much information about the turtle ships are written in his diaries.

Several different versions of the dragon head were used on the turtle ships.

His turtle ships were equipped with at least five different types of cannon.

Admiral Yi also developed the turtle ship upon an older design.

The turtle ship was developed to support this tactic.

There were two more cannon portholes on the front and back of the turtle ship.

There was a turtle ship at the end of each side, anchoring the flanks.

The story includes the development of stronger, technologically superior Turtle ships.

The graphics of the armored Korean "turtle ship" were modified as well.

On the bottom, there is a huge water tank, which can make "Turtle ship" float and sink.

It was used mainly on the Turtle ship.

Moreover, people who are in the "Turtle ship" can see the outside, while exterior people cannot look into it.

Despite popular depiction, the turtle ship was not an extremely slow ship.

It made extensive use of rendered images and a reconstruction of a turtle ship.

There is an ongoing debate as to whether the turtle ship had two decks or three; historians still have no definitive answer.

His turtle ship, which had first set sail the day before the invasion, was very effective in leading the attack and breaking the enemy's formation.

Because it looked like a turtle, it has been called "Turtle ship."

Turtle ships were mostly used to spearhead attacks.

This enabled the turtle ship to be very mobile since wind and manpower could be used simultaneously.

There were iron spikes on the roof like the turtle ship, but the geomseon was smaller, and usually had a complement of about 15 people.

Turtle Ships make their first appearance.

Similar to the standard Panokseon, the turtle ship had two masts and two sails.

Many other historical vessels were used as rams, such as the Korean Turtle ship.

He subsequently began to strengthen the province's navy with a series of reforms, including the construction of the turtle ship.