10:5710:57, 16 June 2023diffhist+19
Gnome-Rhône Mistral Major
→Design and development: It is not mentioned until well into the second paragraph that the engines of the 1920 were single row radials. Also that the manufacturer's designation number, at least for the Gnome-Rhone engines, indicated the number of cylinders. I added some clauses to make these distinctions clear in the opening paragraph and to set-the-stage for what follows with the two-row development by Gnome-Rhone afterwards.
10:1310:13, 16 June 2023diffhist+116
Hispano-Suiza 12Z
→Applications: Found another use for the 12Z in a prototype just as the war was getting hot. See the link to the M.S. 450. Added a note to the last entry, it was alternately the D.523, or the D.520 Z. In any case, it was only a prototype. Nevertheless, the base aircraft was the well-known D.520.