New :

The PX-15 Ben Franklin
                Erwin Aebersold, ingénieur en sous-marins
and its designer and engineer

      Erwin Aebersold
                Erwin Aebersold, ingénieur en sous-marins

click on following link to see the film : Disappearance of the PX-15
"The PX-15 Ben Franklin... and its engineer Erwin Aebersold"...