Manufacturer

Siebel / Flugzeugwerke Halle GmbH

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Siebelwerke-ATG GmbH

Siebelwerke-ATG GmbH name was that of F. W. Siebel (1891-1954), associated with early sport-flying in Germany and who helped form the Klemm company, for which he took charge of new works at Halle (Saale). In 1937 Siebel established own company as Flugzeugwerke Halle GmbH, later renamed Siebelwerke-ATG GmbH. First aircraft was Fh 104 5-passenger monoplane of 1937. Si 201 was experimental military reconnaissance aircraft; Si 202 Hummel of 1938 a sideby- side 2-seater. In Second World War Siebel contributed to production of standard German military types; also built own Si 204 communications aircraft, though this was mainly built by SNCAC in France.

Klemm joined Siebel in 1940.

ATG joined Siebel in 1945 to become Siebel ATG (SIAT).

After war produced Si 222 Super-Hummel and 3-seat Si 308. As member of Nordflug group helped with Noratlas.

Siebel ATG (SIAT) joined MBB in 1973.

Siddeley Deasy Motor Car Co. Ltd

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In 1909, J. D. Siddeley resigned from Wolseley and took over the Deasy Motor Co and the company became known as Siddeley-Deasy. During World War I the company produced trucks, ambulances, and staff cars. In 1915 airframes and aero-engines started to be produced as well.

Major F.M. Green served as chief engineer at the Royal Aircraft Factory and then become a part of the Siddeley-Deasy Motor Car Company. Not limited to the production of motor vehicles, the Siddeley-Deasy brand also delved into manufacture of engines and aircraft. The company was based out of Coventry and was founded by Henry Hugh Peter Deasy. While Deasy left in 1908, J D Siddeley came aboard and changed the company name to Siddeley-Deasy. From there, the company would gradually morph into the Armstrong Whitworth Aircraft firm (known formally as the Sir W.G. Armstrong Whitworth Aircraft Co. Ltd after their 1920 merger with Armstrong Whitworth) and became responsible for a large portion of Siskin production thereafter.

In April 1919 Siddeley-Deasy was bought out by Armstrong Whitworth Development Company of Newcastle upon Tyne and in May 1919 became Armstrong Siddeley Motors Ltd a subsidiary with J. D. Siddeley as Managing Director.

Based at Coventry, Warwickshire; was concerned in production of RAF R.E.7 and R.E.8 and Airco D.H.10 during First World War. Own experimental types included R.T.1 of 1917-1918, a redesigned R.E.8; S.R.2 Siskin, developed from ideas of Major F. M. Green and precursor of famous Armstrong Whitworth line of fighters; and Sinaia twin-engined bomber, completed 1921, also associated with Armstrong Whitworth. In 1919 Armstrong Whitworth and Siddeley-Deasy combined to form in 1920 Sir W. G. Armstrong Whitworth Aircraft Ltd.

Sibnia / Chaplygin

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Russia
Siberian aeronautical research institute founded in 1940s as reserve organization in war for TsAGI. In addition to aerodynamics testing and other work has developed (with Rastr Scientific-Technical Centre) the Dzhinn two-seat lightplane and builds replicas of the Polikarpov 1-16 and 1-153 fighters of the 1930s.

SIAI-Marchetti / Savoia-Marchetti

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Societa Idrovolanti Alta Italia
Siai-Marchetti Societa Per Azioni

The original company was founded in 1915 as SIAI (Società Idrovolanti Alta Italia – Seaplane company of Northern Italy). After World War I gained the name Savoia, when it acquired the Società Anonima Costruzioni Aeronautiche Savoia, an Italian aircraft company founded by Umberto Savoia in 1915.

The name Marchetti was added when chief designer Alessandro Marchetti joined the company in 1922. Savoia-Marchetti gained prominence with the successful S.55 flying boat. Savoia-Marchetti became famous for its flying boats and seaplanes, which set numerous endurance and speed records. Favoured by Air Marshal Italo Balbo, the company began rapidly prototyping and developing a number of other aircraft, increasingly focusing on warplanes in the lead-up to World War II. However, most of S.M.’s manufacturing capabilities were destroyed in World War Two. It was renamed SIAI-Marchetti in 1943.

Since 1946 engaged in overhaul and repair work and developed new aircraft. SIAI-Marchetti only survived in postwar Italy by building trucks and railway equipment. However it still struggled with insolvency for 6 years after the war before declaring bankruptcy in 1951.

In 1953, the company reopened. Types have included SA.202 Bravo trainer produced jointly with FFA in Switzerland; S.205 four-seater and S.208 development. First flew SF.250 aerobatic trainer in July 1964; became highly successful SF.260 production aircraft for civil and military use (initials in SF.260 denoted design by Stelio Frati). In 1968 company formed a Vertical Flight Division, but increasing helicopter work became associated with Agusta and Elicotteri Meridionale. SM.1019 light multipurpose high-wing monoplane followed 1969, SF.600 Canguro transport 1979 (recently taken over by VulcanAir), and S211 jet trainer and light attack aircraft 1981.

Agusta, which had acquired 30% of SIAI-Marchetti in 1970, had increased its stake to about 60% by 1973 and reached complete ownership in 1983.

Company taken over by Aermacchi January 1997.

Short & Harland Ltd / Short Brothers Ltd

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Founded by brothers Horace, Eustace and Oswald Short in November 1908 as Short Brothers Ltd., though Eustace and Oswald had made balloons since 1898. The capital was £600, equally shared between the brothers Horace Leonard, Albert Eustace, and Hugh Oswald.

Short Brothers Article

At Leysdown, Isle of Sheppey, completed first biplane glider, construction of which had begun at Battersea, London, in 1909. It was designed by Horace Short from photographs of the Wright Flyer.

Received order for six Wright biplanes, in one of which Hon. C. S. Rolls made first return crossing of English Channel.

The Short Brothers moved their factory from Battersea to Leysdown in 1909 and completed a tailess biplane of their own design.

In February 1909, Eustace Short and Wilber Wright signed a licence agreement for six of the Wright biplanes. The deal was worth £8400 to the Wright Brothers. The Short brothers already had cash buyers for the aircraft.

Company pioneered multi-engine and multi propeller types, and tractor biplanes with folding wings for naval use. Did more to aid development of early naval flying than any other British firm. New works at Rochester, Kent, started 1914. Most famous type was 184 torpedo-bomber, which was used at Battle of Jutland and was also the first to sink a ship at sea. During First World War established airship works at Cardington, Bedfordshire.

After First World War developed Cromarty flying-boat but diversified in other fields. Gave special attention to all-metal aircraft (Silver Streak of 1920 and derivatives) and concentrated later on large civil and military flying-boats (Singapore biplane series for RAF from 1926; Calcutta and Kent for Imperial Airways). Six-engined Sarafand of 1936 was then largest British flying-boat. Wing form developed for Scion and Scion Senior monoplanes used for famous fleet of Empire flying-boats in 1936, for equally-famous Sunderland military development; also on Short-Mayo composite aircraft and Stirling four-engined monoplane bomber.

Jointly established Short and Harland Ltd. in 1936 with shipbuilder Harland & Wolff; became British Government run 1943, leading to integration of Short Brothers (Rochester & Bedford) Ltd. and Short and Harland into Short Brothers and Harland Ltd. in 1947.

In Second World War built and had built under subcontract Short Stirling four-engined bombers and Sunderland flying-boats; also Handley Page Herefords. In 1947 Short & Harland joined Short Brothers (Rochester & Bedford) Ltd. and altered name to Short Brothers and Harland Ltd., concentrating activities at Belfast, Northern Ireland. Sealand twin-engined amphibian flying-boat of 1948 was produced in small numbers. Sandringham and Solent flying-boats used by BOAC stemmed from the Sunderland. Of great technical significance was the SC.1 VTOL (jet-lift) research program, which followed exploratory research by Rolls-Royce. First free vertical take-off made October 25,1958. Company became heavily involved in production of English Electric Canberra and Bristol Britannia. From 1963 built Belfast heavy transports (four turboprops) and many Skyvan light piston-engined transports (first flown January 1963). Twin-turboprop Shorts 330 30-passenger regional airliner flown August 1974, with Sherpa offered as freighter derivative. Much important manufacture and modification work carried out for leading international constructors and operators under subcontract.

Name Short Brothers Ltd. readopted June 1977, but named Short Brothers PLC, as part of Bombardier Aerospace Group since Bombardier acquired, in October 1989, Short Brothers of Northern Ireland.

Operating three principal business units, as Aerospace producing aircraft components and engine nacelles, Missile Systems, and Belfast City Airport. Shorts 360 36- passenger transport (first flown June 1981) followed Shorts 330/Sherpa, with final complete aircraft built by Shorts becoming the Tucano for the RAF, a variant of the EMBRAER turboprop trainer.