Halruaan skyship

A Halruaan Skyship was a sailing vessel that flew through the air.

Physical description
The flying vessel looked much like a normal seagoing sailing ship. Typicaly they had three masts, square sails, and a broad flat beam. Giant sea turtle shells were often used as armor.

History
The original creation of Halruaan Skyships dates back to Netheril and were a secret of Halruaa for centuries. In the early 1370's DR, a renegade wizard spread the secret of Halruaan Skyships to others.

Craft
Although a rare and genius invention, a Halruaan Skyship is no more than an expensive magic item. Given that a Spellcaster is proficient with the required magical knowledge and able to find the matterials, it is just a matter of months. Crafting such an item requires:
 * knowledge to craft magical items
 * knowledge of levitation magic
 * 400,000 gold pieces worth of materials including a ship vessel.