In 1978 a new Sled arrived based on Ed Grauel's Bullet kite that featured two air scoops at the rear of the sail. The design by Richard Lewis was sparless with two conical tubes to the rear of the sail. With the wind flowing into the conical tubes helped the kite to maintain it's shape and provide stability. A completely sparless kite it could be rolled up and placed in your coat pocket.
Two variations of the design