Evaluated against other types, the Si 201 did not enter production and only two prototypes were built.

Designed to meet a requirement for an air observation post and army cooperation aircraft, the Si 201 first flew in 1938.

The Si 201 was a high-wing, braced monoplane with a tailwheel landing gear, powered by an Argus As 10C, mounted above the wing and driving a pusher propeller.

[1] It had a boxy, fully glazed forward fuselage with room for a pilot and observer in tandem.

Related lists Media related to Siebel Si 201 at Wikimedia Commons Note: Official RLM designations had the prefix "8-", but this was usually dropped and replaced with the manufacturer's prefix.