Dave, you lost me. The picture above is Noyade's own clue to his challenge #2942, and I maintain in my response that it is IMAM Ro.37.
Technically, we are now waiting for two independent confirmations on my response being correct (or Noyade coming back and calling it), or, of course, if someone disagrees with me s/he can propose alternative solutions, and the same process take place with that.
AFAIK Viima had/has radial engine, except one Viima IIB with Gipsy Major.
Edit to say: Welcome to the thread Dave. Please stay!