TDWG Systems Ducting

For secondary applications in which space is not an important consideration, the TDWG ducting can be extended and enlarged into a kind of acoustic horn, like old gramaphones, to produce even more of a ram effect, thereby speeding up the wind velocity and directing it onto the rotor area where it will generate the most positive output. This ducting can be made of fiberglass, carbon fiber, or recycled plastic, and can be cast, blown on as chopped fibers, or laid up by hand.