Complex sentence: Addison was responsible for the design of one of the world's best selling kayaks in 1990, the Corsica, and went on to design the Fury in 1995 at Savage which was the worlds first planing hulled river kayak.
Split into simpler sentences: Addison was responsible for the design of one of the world's best selling kayaks, the Corsica, in 1990. In 1995, he went on to design the Fury, which was the worlds first planing hulled river kayak.