After sailing as crew on a "Vrijheid class", Determan purchased the Flying Dutchman H 125 "Aquarius" in 1970.

With Rudy den Outer he sailed Flying Dutchman, Spanker (a Dutch National class) and Soling for many years and for a brief period Tempest.

Depending on the class they changed positions as crew or helmsman.

In 2005 Gulf Oil Nederland BV in Den Helder named her new Bunker barge after Determan.

This biographical article related to sailing in the Netherlands is a stub.