Skip to main content

The Papers of John Lloyd

Reference Code: GBR/0014/JOLD

Scope and Contents

Papers relating to aviation and aircraft design


  • Creation: 1930 - 1976


Conditions Governing Access

The collection is open for consultation by researchers using Churchill Archives Centre, Churchill College, Cambridge.

Conditions Governing Use

Researchers wishing to publish excerpts from the papers must obtain prior permission from the copyright holders and should seek advice from Archives Centre staff.

Biographical / Historical

John Lloyd was born in South Wales in October 1888. He was educated in Staffordshire and subsequently worked in a steel mill studying the stresses in metals. Widely known as "Jimmy" he became a leading aircraft designer, pioneering the use of steel for propellers and sea-plane-floats and being pre-eminent in the use of alloys in design. On the outbreak of the First World War, Lloyd joined the Royal Aircraft Establishment, Farnborough, as Head of Stress Calculating and Design. In 1917 he joined the Siddeley Deasy Company as Chief Designer. He was subsequently Chief Designer (1923-48) and Technical Director (1948-55) of Armstrong-Whitworth, where he worked until his retirement in 1959.

As a designer he was often well in advance of his time. In 1918 he produced the Siskin, for many years a mainstay RAF fighter, and in 1924 produced the first all steel aircraft in Britain. He designed the Atlas seaplane, the three engined Argosy transport used from 1926-35 by Imperial Airways, the four engined Atalanta, the Whitley Bomber used in World War II and the Albemarle used at Arnhem to carry troops and supplies.

He was elected a Fellow of the Royal Aeronautical Society (FRAeS). Lloyd died in 1978.


1 archive box(es)

Language of Materials


Other Finding Aids

Copies of the collection level description and catalogue are available at Churchill Archives Centre, Cambridge and the National Register of Archives, London.

Immediate Source of Acquisition

The papers were presented to Churchill College by Lloyd's son and daughter in 1979.


This collection (fonds) level description and catalogue was prepared by Andrew Riley of Churchill Archives Centre in June 2005. Information was taken from Lloyd's entry in "Who Was Who" (A & C Black)


Lloyd, John, 1888-1978, aircraft designer

2005-05-31 11:36:08+00:00
Language of description
Script of description

Repository Details

Part of the Churchill Archives Centre Repository

Churchill Archives Centre
Churchill College
Cambridge Cambridgeshire CB3 0DS United Kingdom
+44 (0)1223 336087