Unit-ship:Mortar Ship

__NOWYSIWYG__

Description
The mortar ship has an especially large hull with a high water displacement, so that it can withstand the enormous recoil of the mortar. If the fuse of a missile is correctly measured, the powerful projectile explodes just over the enemy deck.


 * During sea battles, the Mortar Ships deploy to the Long-Range Fighter slot.
 * 6 Mortar Ships fill a battlefield space. __NOWYSIWYG__

Construction times
$$Construction \ time \ = \left \lceil Base \ time \times 0.95 ^ {n - n_0} \right \rceil$$
 * where :
 * Construction time : The calculated time (in seconds) needed to construct the specific ship on the nth Shipyard's level.
 * Base time : The time (in senonds) needed to construct the specific ship on the Shipyard's first level that the specific ship can be constructed [ for this ship 50 minutes = 3,000 seconds ].
 * n : The nth Shipyard's level.
 * n0 : The Shipyard's first level where the specific ship can be constructed [ for this ship is the  Level ].

1 - 10 = 11 - 20 = 21 - 30 = 31 - 38 =