Hydroplane is a relatively rare type of aircraft in the warthunder category.
There are generally two ways for players to obtain these planes. One is developed through technology trees, and the other is experienced by unlocking some ships and using their catapults.
Nowadays, many interesting Hydroplanes have been added to the game, such as the SC-1 from the United States and the KOR-1/2 from the Soviet Union. Unfortunately, they are the planes that can only be experienced on ships.
The Gaijin developers have completed the exterior models, aerodynamic models, weapon equipment, and even BR allocation of these aircraft. But why not add these interesting little elves to the game?
OS2U has made a good start. We can obtain these aircraft by unlocking US level 2 ships. But since beta, only these two OS2Us can be unlocked like this. What a pity!

So, I think it is necessary to integrate the current seaplanes of various countries into their technology tree, so that players can enjoy these planes very comfortably.