In response to KQN's comment of 6/10/17 6:30 AM,:
Yes the Naval Group's Executive Director, Australian Submarine Program, Mr Billig, saying we are designing the Shortfin "from scratch" doesn't seem to have been picked up by the journos of the Mainstream Media.
Mr Billig's misspeak directly contradicts Naval Group's 2016 reference to Shortfin using the Barracuda AND Scorpene as design references. This 2016 reference was in Sean Costello's (then CEO Naval Group/DCNS Australia) who stated in ASPI's The Strategist, April 8, 2016.
"The main area where Barracuda design references were not used [for Australia's future Shortfin submarine] was in the area of the electrical system (batteries and voltage), power generation (induction and diesel generators) and propulsion (main electric motor)."
"In these systems the design reference comes from the Scorpene class of diesel electric submarines, or from an existing submarine technology within DCNS. Existing technologies are re-used in all systems in the Shortfin Barracuda Block 1A. System by system, the whole ship performance is validated and the design loop closed."
Comment - Maybe there's a French to English translation glitch?