
The Phra Ruang, formerly HMS Radiant. She is the second most powerful ship in the Siamese navy.

The Sua-Tayanchuou, a class of two similar destroyers. The are outclassed by modern destroyers, and are equivelent to Japanese Third Class Destroyers.

The Siamese also posses 4 torpedo boats. They are small, slow, lightly armed, and of little combat value.

The pride of the Siamese navy, the armored gunboat Ratanakosingra. Essentially a small coastal monitor, she mounts two six inch guns. While good for shore patrol, don't commit her to a firefight. Convoy escort would be a good duty.
And so the British don't get offended:

HM Submarine X-1. Armed with 5.2in QF guns, she is (in theory) the perfect commerce raider.
Also, we are now allowing the IJN Oiler Notoro to be upgraded (as historically) to a seaplane carrier. Other Shiretoko class oilers are not eligible for this upgrade.

