How do you decide on ship numbers among the same class ?

Of course it's by launch date

How about the twins ?

In case of twins it's decided with the construction date

But how about this ? Atago's construction is so fast!

Construction.... errh, what ?

And these became first ship even though they were constructed later.

I give up

Okay

Tenryuu-chan, that goes for us too...

Isuzu was constructed earlier than Nagara. Kinu was constructed and finished earlier than Yura. Naka was constructed earlier than Jintsuu. As for the destroyers...

What?

Kiso

Tenryuu

Tatsuta

We're twins

We're twins too

How do you explain ?

My beloved older sister Kitakami-san!

Um...

Good question

Tell us why, Tenryuu!

Some called it the Nachi class.

You could call it the Atago class!

Even though we're twins... the younger sister was started first.

I was started four days later!

My construction went slowly.

Ooi

Kitakami

Tama

Kuma

Hyuuga

Ise

Haguro

Ashigara

Nachi

Myoukou

Choukai

Maya

Atago

Takao

Kirishima (top is date when laid down, bottom date when commissioned)

Haruna

Kumano

Suzuya

We were laid down together

When it comes to the launch date, Haguro is the big sister?

What is it Ooicchi~

Laid down: March 17, Meiji 45 (1912) Commissioned: April 19, Taisho 4 (1915)

Laid down: March 16, Meiji 45 (1912) Commissioned: April 19, Taisho 4 (1915)

Laid down: April 5, Showa 9 (1934) Commissioned: October 31, Showa 12 (1937)

Laid down: December 11, Showa 8 (1933) Commissioned: October 31, Showa 12 (1937)

Laid down: March 26, Showa 3 (1928) Commissioned: June 30, Showa 7 (1932)

Laid down: December 4, Showa 3 (1928) Commissioned: June 30, Showa 7 (1932)

Laid down: April 28, Showa 2 (1927) Commissioned: March 30, Showa 7 (1932)

Laid down: April 28, Showa 2 (1927) Commissioned: May 31, Showa 7 (1932)

Laid down: October 25, Taisho 13 (1924) Commissioned: July 31, Showa 4 (1929)

Laid down: November 26, Taisho 13 (1924) Commissioned: November 26, Showa 3 (1928)

Laid down: April 11, Taisho 14 (1925) Commissioned: August 20, Showa 4 (1929)

Laid down: March 16, Taisho 14 (1925) Commissioned: April 25, Showa 4 (1929)

Laid down: May 10, Taisho 4 (1915) Commissioned: December 15, Taisho 6 (1917)

Laid down: May 6, Taisho 4 (1915) Commissioned: April 30, Taisho 7 (1918)

Laid down: August 29, Taisho 7 (1918) Commissioned: August 31, Taisho 9 (1920)

Laid down: August 10, Taisho 7 (1918) Commissioned: January 29, Taisho 10 (1921)

Laid down: September 1, Taisho 8 (1919) Commissioned: April 15, Taisho 10 (1921)

Laid down: November 24, Taisho 8 (1919) Commissioned: October 3, Taisho 10 (1921)

Laid down: June 10, Taisho 8 (1919) Commissioned: May 4, Taisho 10 (1921)

Laid down: May 17, Taisho 6 (1917) Commissioned: November 20, Taisho 8 (1919)

Laid down: July 24, Taisho 6 (1917) Commissioned: March 31, Taisho 8 (1919)