Unit-ship:Gyrocopter

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Description
A novel flying machine that is fast, versatile and not dependent on the direction of the wind - we can hunt cowardly enemies that want to attack us from the skies with it! __NOWYSIWYG__


 * During battle, Gyrocopters deploy to their own air defense slot.
 * Gyrocopters do not move to the front battle line if not filled, so if you have no units except Gyrocopters or other air units in a battle, they will withdraw.
 * The number of gyrocopters that fills a space depends on the battlefield type, as follows:
 * Mini battlefield (town levels 1–4): 10 per space
 * Small battlefield (town levels 5–9): 20 per space
 * Medium battlefield (town levels 10–16): 30 per space
 * Large battlefield (town levels 17–24): 40 per space
 * Big battlefield (town levels 25+): 60 per space
 * Gyrocopters can attack only flying opponents, i.e. enemy Gyrocopters or Balloon-Bombardiers.
 * Gyrocopters can not attack enemy land units.

Attack Sequence
Bombers Slot (Balloon-Bombardiers) → Air Defense Slot (Gyrocopters)

Training times
$$Training \ time \ = \left \lceil Base \ time \times 0.95 ^ {n - n_0} \right \rceil$$
 * where :
 * Training time : The calculated time (in seconds) needed to train the specific unit on the nth Barracks' level.
 * Base time : The time (in senonds) needed to train the specific unit on the Barracks' first level that the specific unit can be trained [ for this unit 15 minutes = 900 seconds ].
 * n : The nth Barracks' level.
 * n0 : The Barracks' first level where the specific unit can be trained [ for this unit is the  Level ].

1 - 10 = 11 - 20 = 21 - 30 = 31 - 40 = 41 - 50 = 51 - 54 =

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