Unit-ship:Ram Ship

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Description
Equipped with a simple ram at the stable bow, this ship is the primary battle ship of the navy. A dozen strong rowers power it in order to ram the spur against the opposing hull. That alone is often enough to make an enemy ship sink.


 * During sea battles, Ram Ships deploy to the flank and they may also be used to fill in the front battle line.
 * The Mini battlefield has no allowance for flank units.
 * 5 Ram Ships fill the front battle line space of the Small, Medium and Large battlefields. The Small, Medium, and Large battlefields have 2, 4, and 6 flank spaces, respectively, allowing for 10, 20 and 30 on the field for those sizes of fields.
 * 6 Ram Ships fill the flank space of the Big battlefield, and there are 6 spaces, allowing for 36 on the field.

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 40 minutes = 2,400 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 =

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