About: Bristol Hydra

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The Bristol Hydra (also known as the Double Octagon) was an experimental 16-cylinder, twin-row radial aircraft engine built by the Bristol Engine Company. It is a relatively rare example of a radial with an even number of cylinders per row – it is often claimed that radial engines require an odd number of cylinders, but this is simply easier, not physically required. Only two Hydras were built, the type never entered production.

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dbo:abstract
  • The Bristol Hydra (also known as the Double Octagon) was an experimental 16-cylinder, twin-row radial aircraft engine built by the Bristol Engine Company. It is a relatively rare example of a radial with an even number of cylinders per row – it is often claimed that radial engines require an odd number of cylinders, but this is simply easier, not physically required. Only two Hydras were built, the type never entered production. (en)
  • El Hydra (también conocido como el Double Octagon) fue un motor radial aeronáutico experimental de 16 cilindros en doble estrella construido por Bristol Aero Engines. Es un raro ejemplo de motor radial con cilindros en número par; con frecuencia se afirma que los motores radiales requieren un número impar de cilindros, pero esto es porque es más sencillo, y no por un requerimiento físico. Sólo se construyeron dos Hydras, y el modelo nunca entró en producción. (es)
  • Il Bristol Hydra era un motore aeronautico radiale a 16 cilindri doppia stella raffreddato ad aria realizzato dall'azienda britannica negli anni trenta e rimasto allo stadio di prototipo. (it)
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  • 1018261938 (xsd:integer)
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dbp:bore
  • 5.0
dbp:compression
  • 6 (xsd:integer)
dbp:coolingsystem
  • Air-cooled (en)
dbp:designer
dbp:diameter
  • 46.5
dbp:displacement
  • 1570 (xsd:integer)
dbp:firstRun
  • 1931 (xsd:integer)
dbp:fueltype
  • DTD 134 petrol (en)
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  • 57.0
dbp:lists
  • *List of aircraft engines (en)
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dbp:numberBuilt
  • 2 (xsd:integer)
dbp:power
  • 850 (xsd:integer)
dbp:power/weight
  • 0.560000 (xsd:double)
dbp:reductionGear
  • Epicyclic geared, reduction ratio 0.424:1, left hand tractor (en)
dbp:ref
  • Lumsden. (en)
dbp:stroke
  • 5.0
dbp:supercharger
  • Medium supercharged (en)
dbp:type
dbp:valvetrain
  • Double overhead camshaft (en)
dbp:weight
  • 1500.0
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rdfs:comment
  • The Bristol Hydra (also known as the Double Octagon) was an experimental 16-cylinder, twin-row radial aircraft engine built by the Bristol Engine Company. It is a relatively rare example of a radial with an even number of cylinders per row – it is often claimed that radial engines require an odd number of cylinders, but this is simply easier, not physically required. Only two Hydras were built, the type never entered production. (en)
  • El Hydra (también conocido como el Double Octagon) fue un motor radial aeronáutico experimental de 16 cilindros en doble estrella construido por Bristol Aero Engines. Es un raro ejemplo de motor radial con cilindros en número par; con frecuencia se afirma que los motores radiales requieren un número impar de cilindros, pero esto es porque es más sencillo, y no por un requerimiento físico. Sólo se construyeron dos Hydras, y el modelo nunca entró en producción. (es)
  • Il Bristol Hydra era un motore aeronautico radiale a 16 cilindri doppia stella raffreddato ad aria realizzato dall'azienda britannica negli anni trenta e rimasto allo stadio di prototipo. (it)
rdfs:label
  • Bristol Hydra (en)
  • Bristol Hydra (es)
  • Bristol Hydra (it)
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