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235:(Malcolm's son) had not previously attempted record-breaking, but after Sir Malcolm's death at the end of 1948, the threat of an American challenge to his water speed record spurred him to defend it. Under the terms of his will, Sir Malcolm's possessions, including the record breakers, were auctioned off and Donald was forced to buy them back. K4 was then re-engined with a propeller and one of the previous
144:" projecting from the bottom of the hull. At speed, the force on this step is enough to lift the bow upward, reducing the wetted surface area of the hull and thus also the frictional drag. A "three pointer" has two distinctly separate floats fitted to the front, and a third point at the rear of the hull. When the boat increases in speed, most of the hull lifts out of the water and
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on these three contact points alone. These points, being even smaller in area than the planing hull of a monohull hydroplane, have even less drag. Having a broad spacing between the front planing points, the three-pointer is less susceptible to instability caused by small disturbances than is a
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forces (not the hydrodynamic forces of the water) on the broad forward area of the hull will cause it to "kite" upwards, leading to a somersault and crash. This is what happened to both
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Donald tried the boat but deemed it too slow; after another superstructure rebuild, and a final structural failure in 1951, it was replaced by the jet-powered
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turbojet engine but did not gain any records. The new superstructure did gain the nickname
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K4 set one world water speed record on 19 August 1939 on
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405:Shipwrecks and maritime incidents in 1951
80:Malcolm Campbell, August 19 1939, with a
335:Donald Campbell: The Man Behind the Mask
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84:1.750 CV, water world speed record at
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65:. He used the name for a series of
57:The name "K4" was derived from its
365:"Malcolm Campbell and Bluebird K4"
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860:Bluebird record-breaking vehicles
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69:cars, his record boats and also
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33:A drawing of the Blue Bird K4
253:currently is on show at the
46:commissioned in 1939 by Sir
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880:Maritime incidents in 1951
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333:Tremayne, David (2005).
59:Lloyd's unlimited rating
870:Jet-powered hydroplanes
203:'The Coniston Slipper'
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359:Lakeland Motor Museum
324:Harris, Fred (2000).
255:Lakeland Motor Museum
222:Lakeland Motor Museum
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681:George Washington
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328:. Ainsdale Press.
189:Jet engine trials
67:land speed record
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368:(photograph)
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133:Blue Bird K3
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127:Miss England
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98:Blue Bird K3
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63:Blue Bird II
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39:Blue Bird K4
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875:Hydroplanes
529:Sri Ayudhya
476:Arab Trader
244:Bluebird K7
218:Bluebird K4
162:Bluebird K7
156:Slo-mo-shun
151:aerodynamic
82:Bluebird K4
18:Bluebird K4
854:Categories
774:Scillonian
737:Wave Laird
646:Jean Marie
518:Maharashmi
434:Castledore
412:Shipwrecks
281:. His son
265:References
259:Backbarrow
193:After the
179:Lancashire
124:, such as
122:powerboats
115:hydroplane
815:Grenville
813:HMS
764:Wisconsin
762:USS
714:USS
707:USS
691:Etivebank
636:São Paulo
586:Saltfleet
576:Allenwood
548:HMS
485:HMS
456:Partridge
454:USS
443:USS
279:Blue Bird
239:engines.
226:Ulverston
44:powerboat
801:28 Dec:
784:Gripfast
781:22 Oct:
771:10 Sep:
760:22 Aug:
744:20 Aug:
733:19 Jul:
723:18 May:
702:Cherokee
698:14 May:
688:23 Feb:
678:16 Jan:
653:25 Dec:
643:12 Dec:
626:Transpet
623:30 Oct:
613:25 Oct:
603:29 Oct:
573:14 Sep:
536:15 Aug:
515:10 Jun:
508:Marrawah
505:10 May:
498:Bedenham
494:27 Apr:
483:16 Apr:
473:13 Apr:
463:18 Feb:
441:29 Jan:
431:28 Jan:
287:Bluebird
181:(now in
105:engine.
791:6 Nov:
716:Valcour
709:Sunbird
633:6 Nov:
593:7 Oct:
583:3 Oct:
563:3 Sep:
556:Pelican
550:Bagshot
546:1 Sep:
525:1 Jul:
466:Nairana
452:2 Feb:
420:7 Jan:
318:Sources
220:today (
183:Cumbria
169:Records
119:planing
747:Dromus
700:USCGC
655:Lilica
596:U-2513
539:Wahine
487:Affray
424:Pratae
341:
283:Donald
146:planes
109:Design
42:was a
527:HTMS
422:HTMS
224:near
841:1952
828:1950
735:RFA
496:RFA
339:ISBN
142:step
138:keel
657:ex-
130:or
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300:^
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257:,
251:K4
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398:e
391:t
384:v
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228:)
20:)
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