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140:- engines in the Super Boat class have no maximum size, but instead have a minimum size restriction. Normally aspirated engines must have a displacement of 6.5 litres (400 cubic inches), while forced induction (turbocharged or supercharged) engines must be at least 3.8 liters (235 cubic inches) in displacement. These engines typically are fuel injected and run
81:
The race itself consists of a predefined course through the channels with 25 to 30 changes of direction. These races generally take just 45–60 seconds. Once qualifying is completed, the competitors each run the course with the fastest qualifiers running last. The fastest 16 (typically depending on
129:
blocks and heads, or 6-litre (365 cubic inch) engines with aluminium heads. Both engines are only allowed two push-rod operated valves per cylinder. Furthermore, the engine must be normally aspirated, using a four-barrel carburetor. Fuel is 100+ octane
94:
on each side. A short hull is preferred, as a longer hull takes more distance to turn and usually must be turned at a slower speed. The strakes provide "traction' by stopping the boat from sliding sideways across the water when turning at high speed.
110:
A crew consists of the driver and a navigator, whose responsibility is to guide the driver through the course - typically via simple hand signals, pointing the hand in the direction that the boat must go at the next intersection.
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the number of competitions) proceed to the next round. This is then reduced to the top 12, Top 8 then the top 5 and finally the fastest three.
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A jetsprint hull is typically short - just 3.8 to 4.0 metres (12½ to 13 feet) long. The hull's vee is usually 23 to 25 degrees with several
144:
fuel. The small-block engines typically produce 950+ horsepower, while the big blocks can produce between 1000 and 1600 horsepower.
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31:, with a crew of two, race individually against the clock through a twisting series of channels in less than a metre of water.
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Tracks are typically designed for spectators, and racing is fast and loud, with boat motors usually powered by
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in the mid-1980s, permanent artificial courses were used—and this is now the norm even in New
Zealand.
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125:- engines in Group A boats are restricted to either 6.7-litre (412 cubic inch) engines with
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Sprint Boat racing, or Jet
Sprinting as it's known in its founding country of New Zealand
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in 1981, and events were originally held in the same natural
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There is now a world championship under the auspices of the
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134:. Typically these engines produce up to 650 horsepower
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119:There are two internationally recognised classes
46:Jetsprinting as an organised sport originated in
191:Australian V8 Superboats Jet Sprint Championship
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8:
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196:Jetsprint Legends online jet boat racing
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62:, but when the sport was introduced to
313:from the original on 28 November 2015.
309:. Union Internationale Motonautique.
240:. USSBA Racing Series. Archived from
7:
38:developing well over 500 hp.
14:
285:New Zealand JetSprint Association
263:New Zealand JetSprint Association
201:Union Internationale Motonautique
186:New Zealand Jetsprint Association
71:Union Internationale Motonautique
790:
410:
1:
281:"International Group A Class"
234:"What is Sprint Boat Racing?"
232:DeFord, Jim; Schlagel, Jeff.
102:must be fitted to the boat.
888:Radio-controlled car racing
238:USSBA Racing Series History
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543:Mountain bike orienteering
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867:Offshore powerboat racing
819:Motorcycle chariot racing
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408:
174:Offshore powerboat racing
862:Inshore powerboat racing
1015:List of forms of racing
382:Middle-distance running
857:Jet sprint boat racing
460:Cross country running
387:Long-distance running
954:Cross-country skiing
928:Slalom skateboarding
611:Mountain bike racing
244:on 8 December 2013.
56:Sir William Hamilton
762:Pickup truck racing
697:Paralympic swimming
687:Open water swimming
596:Road bicycle racing
978:Multi-sport racing
777:Touring car racing
563:Canoe orienteering
558:Radio orienteering
553:Trail orienteering
211:2009-04-28 at the
54:that had inspired
21:sprint boat racing
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906:
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852:Hydroplane racing
801:Motorcycle racing
767:Sports car racing
692:Marathon swimming
573:Mountain marathon
538:Foot orienteering
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523:
291:on 26 April 2012.
269:on 26 April 2012.
154:are not allowed.
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1036:Motorboat racing
985:Adventure racing
847:Drag boat racing
839:Motorboat racing
794:
772:Stock car racing
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654:Greyhound racing
578:Car orienteering
548:Ski orienteering
511:Snowshoe running
506:Backward running
465:Mountain running
453:Off-road running
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307:UIM Powerboating
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287:. Archived from
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265:. Archived from
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25:motorboat racing
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180:External links
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439:Ultramarathon
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23:is a form of
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923:Sandboarding
918:Longboarding
911:Board racing
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829:Track racing
809:Beach racing
782:Truck racing
725:Motor racing
659:Horse racing
649:Camel racing
530:Orienteering
470:Fell running
421:Road running
402:Steeplechase
306:
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289:the original
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267:the original
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242:the original
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206:USSBA Racing
148:Nitromethane
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933:Street luge
752:Kart racing
742:Drag racing
734:Auto racing
601:Cyclo-cross
501:Racewalking
303:"Jetsprint"
138:Super Boats
48:New Zealand
883:Air racing
824:Rally raid
626:BMX racing
480:Skyrunning
392:Relay race
219:References
1000:Aquathlon
990:Triathlon
814:Motocross
568:Rogaining
377:Sprinting
127:cast iron
64:Australia
27:in which
17:Jetsprint
1030:Category
995:Duathlon
969:Sledding
707:Climbing
679:Swimming
434:Marathon
397:Hurdling
311:Archived
209:Archived
158:See also
142:methanol
100:rollcage
29:jetboats
516:Parkour
360:Running
164:Jetboat
123:Group A
115:Classes
92:strakes
60:jetboat
42:History
620:Keirin
444:Ekiden
352:Racing
77:Format
876:Other
489:Other
86:Boats
150:and
106:Crew
36:V8s
19:or
1032::
305:.
283:.
261:.
236:.
98:A
622:)
618:(
344:e
337:t
330:v
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.