As she was designed with exactly the same fire control director systems as " Richelieu ", neither directors nor range finders were installed before " Jean Bart " left Saint-Nazaire, not even the stereoscopic range finder, which was to be installed in the main turret still in place.
2.
"The first of these reports is concerned with the comparative test of coincidence and stereoscopic range finders . ( 353 ) In these tests the American stereoscopic Height Finder Ml was operated against the British coincidence type Range Finders FQ 25 and UB 7, in ranging on fixed ground targets, moving naval targets and moving aerial targets.
मोबाइल