The major change in the 1912 biplane is the addition of a central nacelle that contained the pilot, passenger and the engine.

Still using the wing 'jibs' he developed for lateral control, this aircraft introduced a crudely constructed nacelle for the pilot, passenger and engine.

[1][2] After Frank's death, his brother, Joseph, continued the development of the aircraft.

Working with the financial backing of Inglis M. Uppercu, by 1913, he had substantially revised the nacelle and front structure of the aircraft and improved the overall fit and finish of the entire aircraft.

[1] In 1914, Uppercu bought out the Boland brothers and reorganized the Boland Airplane and Motor Company as the Aeromarine Plane and Motor Company and marketed this as the Aeromarine Model B.