The dawn of Swedish helicopter operations - Ostermans Aero is participating in a military exercise with one of its two S-55s and a Bell 47G (SE-HAN).

Delivering goods during the military helicopter trials. The S-55 was never selected as a military aircraft though.

The photo belongs to Marinens Pressdetalj, via the Swedish Maritime Museum's collection (published with permission). The photographer is unknown.

Sweden's first S-55 photographed at the F18 Air Force Base in southern Stockholm. This aircraft was used in extensive military trials together with its sister SE-HBB and a few Bell 47s in the 50s. The types were never acquired. Instead the military branches choose the Alouette II for its operations (see 02207). In addition to that the Navy choose the Vertol 44 (see 01001) as its heavy helicopter, the Air Force ordered the Vertol 107 (see 04451) and the Army went for the Huey (see 03301), as did the Air Force.