The Alberg 30 is a Canadian sailboat, that was designed by Carl Alberg and first built in 1962.
Alberg 30
Alberg 30
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.