The Ben Franklin, with which Jacques explored the Gulf Stream in 1969, drifting 3000km in a dive that lasted a month.

The F.-A. Forel, an easily transportable pocket-submersible, in which Jacques made more than 2000 scientific and educational dives in European lakes and in the Mediterranean.

The PX-44, prototype of a new-generation passenger submarine, designed for series production.

Founder and Chairman of the Foundation for the Study and Protection of Seas and Lakes, based in Cully, Switzerland, Jacques has a highly creative mind like his father. In addition to those that were built, he also produced several dozen other designs for scientific and industrial applications, which unfortunately failed to be realized for lack of finance.
Pioneers are always ahead of their time…..