Beardmore Halford Pullinger
Encyclopedia
Beardmore-Halford-Pullinger (B.H.P. or BHP) were aircraft engines used in production between 1916 and 1918. The engines were used on many notable First World War aircraft, such as the Airco DH.4, DH.9
Airco DH.9
The Airco DH.9 - also known after 1920 as the de Havilland DH.9 - was a British bomber used in the First World War...

, DH.10
Airco DH.10
|-See also:-References:NotesBibliography*Jackson, A. J. British Civil Aircraft Since 1919, Volume 2. London: Putnam, Second Edition, 1973. ISBN 0-370-10010-7.*Jackson A. J. De Havilland Aircraft since 1909. London:Putnam, 1987. ISBN 0-85177-802-X....

, de Havilland DH.15 and Avro 529 aircraft.

The engines were used as the basis for later designs such as the Siddeley Puma and A.D.C Nimbus (1926).

Formation

The name is derived from the three elements of:
  • Beardmore - Sir William Beardmore
    William Beardmore, 1st Baron Invernairn
    William Beardmore, 1st Baron Invernairn , known as Sir William Beardmore, Bt, between 1914 and 1921, was an Anglo-Scottish industrialist, founding the eponymous William Beardmore and Company.-Background and education:...

     of William Beardmore and Company
    William Beardmore and Company
    William Beardmore and Company was a Scottish engineering and shipbuilding conglomerate based in Glasgow and the surrounding Clydeside area. It was active between about 1890 and 1930 and at its peak employed about 40,000 people...

    : Responsible for funding and providing original engines from his production company, which manufactured aero engines used in many aircraft prior to 1916 such as the 120 hp
    Beardmore 120 hp
    |-See also:-Bibliography:* Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9...

    , 160 hp
    Beardmore 160 hp
    |-See also:-Bibliography:* Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9* Jane's Fighting Aircraft of World War I. London. Studio Editions Ltd, 1993. ISBN 1-85170-347-0...

     and Tornado
    Beardmore 160 hp
    |-See also:-Bibliography:* Gunston, Bill. World Encyclopaedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9* Jane's Fighting Aircraft of World War I. London. Studio Editions Ltd, 1993. ISBN 1-85170-347-0...

     (diesel). They also manufactured aircraft and airships, such as the Beardmore W.B.III
    Beardmore W.B.III
    |-See also:...

    , and R23X class airship
    R23X class airship
    -References:* Griehl, Manfred and Joachim Dressel. Zeppelin! The German Airship Story, 1990 ISBN 1-85409-045-3* Morpurgo, J.E. Barnes Wallis - A Biography, Longman, 1972 ISBN 0-582-10360-6...

    . The company provided designs which were modified into the B.H.P. engines.

  • Halford - Major Frank Halford
    Frank Halford
    Major Frank Bernard Halford CBE FRAeS was an English aircraft engine designer.-Career:Educated at Felsted, In 1913 he left the University of Nottingham before graduating to learn to fly at Brooklands and Bristol Flying School and became a flight instructor using Bristol Boxkites.He served in the...

    : Responsible for making modifications to the engines originally taken from Beardmore designs. Halford also later designed the de Havilland Gipsy
    De Havilland Gipsy
    The de Havilland Gipsy is a British air-cooled 4-cylinder in-line aircraft engine designed by Frank Halford in 1927 to replace the ADC Cirrus in the de Havilland D.H.60 Moth light biplane....

     aero engine, designed the first turbo charged racing car engine, the Halford Special
    Halford Special
    The Halford Special was a Grand Prix racing car of the 1920s built by Frank Halford on the chassis of an early Side Valve Aston Martin tourer. It was one of the most advanced British-built racing cars of the mid 1920s and had many racing successes....

     and one of the first jet engines, the Halford H.1 later developed by de Havilland as the de Havilland Goblin.

  • Pullinger - Thomas Pullinger: Production manager at one of Beardmore's factories and provided capital for the new company, the Galloway Engineering Co. Ltd. started in Dumfries to continue development and production of the 230 hp engine.

Engines

  • Atlantic
  • 230 hp

The 230 hp was a six cylinder petrol aero engine. A new company, the Galloway Engineering Co. Ltd. was started in Dumfries to continue development and production of the 230 hp engine. Endurance tests began in June 1916 in a DH.4 modified by Geoffrey de Havilland
Geoffrey de Havilland
Captain Sir Geoffrey de Havilland, OM, CBE, AFC, RDI, FRAeS, was a British aviation pioneer and aircraft engineer...

 and tested by the Central Flying School
Central Flying School
The Central Flying School is the Royal Air Force's primary institution for the training of military flying instructors. Established in 1912 it is the longest existing flying training school.-History:...

.

Production was ordered and the contract given to Siddeley-Deasy
Siddeley-Deasy
Siddeley-Deasy was a British automobile, engine and aircraft company based in Coventry in the early 20th century. It was central to the formation, by merger and buy-out, of the later Armstrong Sideleley Motor and Armstrong Whitworth Aircraft companies....

 for units to be built at their Parkside works. John Siddeley himself worked on the engine and would later, after additions to the watercooling system, release an improved 240 hp version as the Siddeley Puma.

Motor Co. Ltd. Coventry, Siddeley-Deasy and the Arrol Johnston factory were eventually called upon to assist production as Galloway Engineering could not produce enough units per week, after which they were left with just making the steel engine blocks.

External links

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