While many of SILK's Model 17 military aircraft were developed for offensive action, the SILK-177, nicknamed Enkeli (Angel) was designed in 1948 to replace foreign produced seaplanes that dated back to the early 1930s in the role of Search & Rescue. It looks extremely similar to its predecessors save for the fact that it lacks the ventral gondola with the bomb aimer's position.

Equipped to carry up to 16 passengers or 8 cots for wounded individuals recovered from the sea. On a several occasions, when lacking capacity for survivors seamen have climbed up onto her floats and the crew has slowly crept their aircraft along the surface of the water to friendly or neutral territory - whichever is closest. For many survivors from sunken ships or downed airmen this aircraft truly befits its name as Enkeli.

The presence of the dorsal turret lends some to question what Se Suomi Imperiumi (The Finland Empire) might do to enemies stranded at sea. However their service record and number of rescued Germanishe has illustrated its true purpose - a retained last ditch defensive armament for if in the event the markings of a rescue aircraft does not protect it from enemy action.

CG1 Activates the defensive armament, with the VTOL slider controlling the turret.