300 hp Wright R-975, The original was powered by a 230 hp Menasco-Slamson B-2
The following photo is from the collection of Jesse Davidson via Thomas Norris
Group 2 ATC 2-173 1-11-1930
Only two of these were found in the Aerofiles N-numbers. This one, identified as a "Miami Amphibain", Model MM-200. And NC178N identified as a "Miami Maid Flying Boat sn-52", Model MM-201.
The following photo is from The Ludington Family Archives.
Aero Digest, June, 1929, page 126
Aero Digest, June, 1929, page 132
