Windmill Sail

The Windmill Sail is a component added by Immersive Engineering. It improves Windmill blades one at a time, attachable by using a Windmill Sail on the hub. The Windmill spins a bit faster for each sail. Windmills accept up to 8 Windmill Sails.

Before Immersive Engineering version 0.12-92, this was the Improved Windmill Blade which was used to craft an Improved Windmill.