Allows you to unlock the new building: Airship fields and recruit airships to your cause.

Max Level:

1

Hours Per Level ^*:

3

Bonus Per Level:

0%

Bonus Resources Per Level:

0

Effects:

Unlocks New Building

Parent Skill:

Efficient Smelting

Unlocks when parent is level:

2

Is Locked?

Yes

^* There is a formula to figure out the new time, Let's assume the skill at level 0, takes 2 hours. At level 1, the new time requirement to get to level 2 will be 1 + 1 * 2 = 4 hours. Let me break that down: New Skill Level (1) + 1 * Total Hours at level 0 (2) = 4 Hours.