Blue Bird or Bluebird is the name of various cars and boats used by Sir Malcolm Campbell, his son Donald and other family members to set land and water speed records.
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Origins of the name.
The name "Blue Bird" was originally inspired by the play of that name by Maurice Maeterlinck, and the vehicles were painted a shade of azure blue.
Malcolm Campbell had a succession of Darracq racing cars in the 1920s, which in the fashion of the day he had named " 'Flapper I' ", " 'Flapper II' " and " 'Flapper III' ". It was " 'Flapper III' " which he renamed after seeing the play, famously and impetuously knocking up a paint shop owner at night, so as to purchase blue paint before racing at Brooklands the following day.
In 1925, he also raced an Itala at Brooklands with the name " 'The Blue Bird' " painted on the bonnet.
"Bluebird" or "Blue Bird"?
Malcolm Campbell named them "Blue Bird", Donald "Bluebird".
The hydroplane K4 began life as Malcolm's "Blue Bird", but when Donald decided to use her in 1949, after his father's death, he renamed her "Bluebird".
Cars.
Sir Malcolm Campbell.
For completeness, earlier cars raced by Campbell and named 'Blue Bird' are also listed here. Dates are indicative only.
Donald Wales.
Donald Wales, grandson of Malcolm Campbell and nephew of Donald Campbell, has contested the world electric powered land speed record. He was also the test driver for the "British Steam Car" Inspiration, which broke the steam-powered land speed record. He was also the driver for Project Runningblade, setting the world land speed record for a lawnmower. 
Boats.
Gina Campbell.
Gina Campbell, daughter of Donald Campbell, has contested the women's world water speed record.
References.
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