Joseph Smith (aircraft designer)

Joseph Smith
Born	Template:Birth date England
Died	February 20, 1956(1956-02-20) (aged 58) Chandler's Ford, England
Occupation(s)	Aircraft engineer, aircraft designer
Known for	Chief Designer at Supermarine; development of the Supermarine Spitfire and subsequent aircraft
Awards	CBE (1946), Royal Aeronautical Society silver medal (1950), British Gold Medal (posthumous, 1956)

This article is about the aircraft engineer. For other individuals, see Joseph Smith (disambiguation).

Joseph Smith CBE (25 May 1897 – 20 February 1956) was a distinguished English aircraft engineer who succeeded R. J. Mitchell as Chief Designer at Supermarine and led the development team responsible for advancing the Supermarine Spitfire.

Early life

Joseph Smith received his education at Yardley Secondary School and later at Birmingham Municipal Technical School. In 1914, he commenced an apprenticeship with the Austin Motor Company located in Longbridge, Birmingham. With the onset of World War I, he enlisted in the Royal Naval Volunteer Reserve (RNVR) during the same year and served aboard motor launches in the Mediterranean theatre.

After completing his service with the RNVR, Smith returned to Austin to conclude his apprenticeship. Upon completion, he was appointed as a junior draughtsman within their aircraft division in 1919. During this period, he contributed to the design of the Austin Whippet, a cost-effective single-seat aircraft. However, due to inadequate sales, Austin ceased its aircraft manufacturing efforts in 1920.

Determined to continue his career in aviation, Smith transitioned to Supermarine in 1921 where he assumed the role of senior draughtsman under Chief Draughtsman Frank Holroyd.

Smith’s responsibilities expanded over subsequent years; by 1926, Frank Holroyd was officially named Assistant Chief Engineer while Smith advanced to Chief Draughtsman. From that point forward, Smith played an integral role in all Supermarine projects throughout the late 1920s and into the 1930s.

By 1927, Smith managed a team of 38 personnel within the drawing office.

Under chief designer R. J. Mitchell, Smith was deeply engaged in the initial stages of Spitfire design. After Mitchell’s passing in June 1937, his deputy Harold J. Payn assumed the chief designer position. Following government contracts for the Spitfire, Smith took a leading role in designing the airframe structure and preparing detailed production drawings.

Chief Designer

In September 1939, as tensions escalated towards war, a security screening revealed that Payn’s wife was of German origin. Due to concerns over the potential security threat this posed to a critical wartime project, Payn was removed from his position. Subsequently, Smith assumed the role of acting design department manager and was officially named chief designer in 1941 after receiving authorization from the Ministry of Aircraft Production.

Smith held a strong conviction regarding the Spitfire's extensive development possibilities and was reluctant to pursue a successor aircraft until the Spitfire had reached its full performance limits. Under his leadership, the Spitfire and its naval counterpart, the Seafire, evolved through multiple variants. This progression included the integration of the Rolls-Royce Griffon engine series, which helped maintain their status as premier fighters until jet technology eventually replaced them. The ultimate iteration in the Spitfire lineage was the Supermarine Spiteful alongside its naval variant, the Supermarine Seafang. These models combined a fuselage reminiscent of the Spitfire with a newly designed straight-tapered laminar flow wing. This design allowed Smith to implement a wide-track undercarriage that retracted inward, enhancing operational capabilities.

Post-war activities

After his work on piston-engine aircraft, Smith designed Britain’s first naval jet fighter, the Supermarine Attacker, which utilized the Spiteful’s wing design and served with the Royal Navy.

Following the Attacker, he directed the development of the Type 510 swept-wing jet fighter, which evolved into the Supermarine Swift. Later projects included the Supermarine 525 and Supermarine Scimitar.

Although his post-war focus centered on fighter aircraft development, Smith also led the design of the Seagull, an amphibious flying boat.

In 1948, Smith was appointed as a special director at Vickers-Armstrongs Ltd. He also held leadership roles within industry bodies, serving as chairman of both the Technical Board and Technical Executive Committee of the Society of British Aircraft Constructors between 1948 and 1951.

Additionally, he chaired the Aircraft Industries Standards Committee and contributed as a member of the Engineering Divisional Council at the British Standards Institute.

Smith passed away from cancer in Chandler's Ford on 20 February 1956.

Honours

In recognition of his wartime contributions, Smith received a CBE in 1946.

He was awarded the Royal Aeronautical Society’s silver medal in 1950.

Posthumously in 1956, Smith was honoured with the British Gold Medal by the Royal Aeronautical Society for exceptional achievements in aeronautics.