The Catalina 30 is a series of American sailboats, that were designed by Frank Butler and later by Gerry Douglas.
A Catalina 30 with the optional bowsprit fitted
Catalina 30
A Catalina 30, showing the transom shape
A 1984 Catalina 30 showing the optional tall rig with bowsprit.
Frank Willis Butler was the founder of Catalina Yachts, one of the biggest boat designers and manufacturers in the world.
The Butler-designed Catalina 22