Si 204

The Siebel Si 204 was a German twin‑engine transport and trainer aircraft developed during World II and produced by the Siebel‑Werk factory. Designed in 1939 as a replacement for the Siebel S 14, the Si 204 first flew on 13 March 1941 and entered limited service with the Luftwaffe in 1942. Its all‑metal low‑wing monoplane structure housed a spacious cabin that could be configured for up to ten passengers, cargo, or an instructor‑student arrangement, making it a versatile platform for troop transport, paratroop deployment, and advanced navigation training. Powered by two Argus As 410 radial engines delivering 465 hp each, the aircraft achieved a top speed of 370 km/h, a range of 1,200 km, and a service ceiling of 6,500 m. The Si 204’s rear‑facing windows and tall, glazed dorsal canopy provided excellent visibility for flight‑school operations, while its robust landing gear allowed operation from rough fields. Although production numbers were modest—approximately 500 units built—the type influenced post‑war transport designs and served in several European air forces after 1945, highlighting its lasting contribution to military aviation logistics and pilot training. Its simple construction and low operating costs led to civilian conversions in the early 1950s, extending its service life.