Pilatus & Siebel Switserland

Siebel Si 204 Transport

Siebel Si-204 Hallore

Switserland Aircraft


The Siebel Si 204 was a small twin-engined transport and trainer aircraft developed in World War II. It was based on the Fh 104 Hallore.

Goto Pilatus Aircraft

The Siebel Si 204 was a small twin-engined transport and trainer aircraft developed in World War II. It was based on the Fh 104 Hallore. Originally designed in response to an RLM development order for a small civil transport aircraft in 1938, it was eventually produced for the Luftwaffe.

Operational History

The Si 204 was planned as a small all-metal passenger aircraft with two crew and eight passengers for German airline Deutsche Luft Hansa (DLH). Development was initiated in 1938. The contractor was, as usual, the RLM, but the development was conducted in close collaboration between DLH and Siebel in Halle.

RoleLight transport/trainer
National originGermany
Primary usersLuftwaffe
Number built1,216 (to January 1945)
Developed fromSiebel Fh 104 Hallore



  • ČSA operated post-war built Aero C-103s.
  • Polskie Linie Lotnicze LOT operated in 1947–1948 six NC.701 bought in France. Aircraft were used for aerial photography and had markings from SP-LFA to LFF.[5]
  • Rikets Allmänna Kartverk operated five NC.701 bought in France between 1962–1970 for mapping photography.
 Soviet Union
  • Aeroflot operated post war some captured Si 204 for transport duties.

General characteristics

  • Crew: 1 or 2
  • Capacity: up to 8 passengers / 1,650 kg (3,638 lb) cargo
  • Length: 11.95 m (39 ft 2 in)
  • Wingspan: 21.33 m (70 ft 0 in)
  • Height: 4.25 m (13 ft 11 in) to tip of radio mast
  • Wing area: 46 m2 (500 sq ft)
  • Empty weight: 3,950 kg (8,708 lb)
  • Gross weight: 5,600 kg (12,346 lb)
  • Fuel capacity: 890 l (240 US gal; 200 imp gal) fuel ; 122 l (32 US gal; 27 imp gal) oil
  • Powerplant: 2 × Argus As 411-A1 V-12 inverted air-cooled piston engines 600 PS (590 hp; 440 kW) for take-off
  • Propellers: 2-bladed Argus Motoren wooden variable-pitch propellers, 2.69 m (8 ft 10 in) diameter



  • Maximum speed: 364 km/h (226 mph, 197 kn) at 3,000 m (9,843 ft)
  • Cruise speed: 340 km/h (210 mph, 180 kn)
  • Range: 1,800 km (1,100 mi, 970 nmi)
  • Service ceiling: 7,500 m (24,600 ft)
  • Rate of climb: 6 m/s (1,200 ft/min)[citation needed]
  • Time to altitude: 1,000 m (3,281 ft) in 3 minutes 18 seconds


Aircrafttoaal encyclopedia

It originated in the Klemm-Flugzeugwerke Halle that had been founded in 1934 as a branch of Leichtflugzeugbau Klemm in Böblingen. Its name changed to Siebel Flugzeugwerke when it was taken over by Friedrich Siebel in December 1937.[2] After World War II the company was revived as Siebel Flugzeugwerke ATG (SIAT) in West Germany in 1948, with its headquarters in Munich. In 1956, its headquarters were moved to Donauwörth and the company became WMD-Siebelwerke ATG (WMD/SIAT) in 1958 in cooperation with Waggon- und Maschinenbau GmbH Donauwörth (WMD). In 1968 the company was absorbed by Messerschmitt-Bölkow-Blohm after MBB became the major shareholder