The SE - 1200 was a proposed eight - engined very large 125 - passenger flying boat .
The SE - 1200 to enable aerodynamic tests of the design a flying scale model approximately one - third size was built .
The SE - 1200 was a proposed eight - engined very large 125 - passenger flying boat and to enable aerodynamic tests of the design a flying scale model approximately one - third size was built .