Sikorsky models and designations

[hesham]

From Aero Digest 1926,

what was this ?.

 

[Stargazer]

From Aero Digest 1926,

what was this ?.

I shared this one elsewhere on the forum a few years ago, it's the Airco Messenger.
It was a smaller, four-seat version of the S-34 with two 120hp Super-Rhône engines and a simplified retractable gear. It was designed by Igor Sikorsky for the Aircraft Corp. of America (Airco), advertised in 1926, but not built.

 

[Stargazer]

By the way, Airco was to act as selling agents for Sikorsky Manufacturing Corp., but the deal fell through.
Since the Airco "Messenger" was not pursued by Sikorsky, it didn't get an "S-" designation.
The Airco "Amphibian", of course, became the S-34.