 The silent partner in Auroraglas purchased the rights to the center-cockpit Tripp-designed Coronado 35 and Columbia 36 designs from Columbia Yachts and the tooling was modified to become the aft-cockpit Portman 36.That design was produced by Auroraglas and then Watkins Yachts, in Clearwater, Florida, United States after the companies were merged.The Portman 36 was then modified by Watkins to become the aft-cockpit Watkins 36 and finally developed into the center-cockpit Watkins 36C.