Airships

Airships are the game's iconic feature, literally a flying ship. There are 10 airships in Merchant of the Skies, all of which can be purchased at Shipwrights where available. The player starts the game with the Boat. Airships have an Energy storage value (measured in Days), Crew space, Inventory size, and a number of slots for Module. The price of individual airships varies based on the shipwright it is purchased from, although each airship does have a distinct price range and is an improvement on the previous in all areas.

Recharging a larger airship will cost more due to the larger size and the limited control over the total purchased charge, and may affect your "gas mileage" if it has an increased or decreased charge per second.

Notice that 5 Energy is equal to exactly 1 Day of travel. Energy consumption can be reduced by the Fuel Efficiency skill.

Airships fly at a certain speed. An Airship without at least the optimal amount Crew will fly slower than its base speed. Airship speed can be increased by and   Modules.

Airships can also be purchased from a Shipwright and sent to the nearest Caravan Office with empty slots, where they can embark on automated Caravan Routes.

Skills and Perks
Airship travel speed can be increased by +10% / +20% with the skill:

Achievement
Buying an Airship at a Shipwright for the first time awards the achievement: