Omar
The Special Editions of Engineering for Lusitania and Mauretania, would Explain this. The Mauretania's Builders Did more Extensive Tank Test w/ Models than the Lusitania's Builders did. Anyone who wants period evidence, simply has to look in the Special Editions of Engineering "Lusitania" and "Mauretania", both edited by Mark Warren, also useful will be the Shipbuilder/No. 2 book in Ocean Liners of The past.