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152:, a federal public works project to divert water from the Colorado River to the city of Phoenix. Tom Stewart, one of these young California skateboarders, looked for a more convenient location to have a similar skateboarding experience. Stewart consulted with his brother Mike, an architect, on how to build a ramp that resembled the Arizona pipes. With his brother's plans in hand, Tom built a wood frame half-pipe in the front yard of his house in Encinitas.
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their radius. Technical skaters use them for advanced flip tricks and spin maneuvers. Smaller transitions that maintain the steepness of their larger counterparts are commonly found in pools made for skating and in custom mini ramps. The difficulty of technical tricks is increased with the steepness, but the feeling of dropping in from the coping is preserved.
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128:, a half-pipe can be dug out of the ground or snow perhaps combined with snow buildup. The plane of the transition is oriented downhill at a slight grade to allow riders to use gravity to develop speed and facilitate drainage of melt. In the absence of snow, dug out half-pipes can be used by dirt-boarders, motorcyclists, and
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The standard design in the construction of ramps is to use a constant radius in transitions: Most of the ramps are built with a quarter circle of constant radius for easy construction, and this method is tried and true. But some of the best ramps are not constant radius but a roughly elliptical with
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Most commercial and contest ramps are surfaced by attaching sheets of some form of masonite to a frame. Many private ramps are surfaced in the same manner but may use plywood instead of masonite as surface material. Some ramps are constructed by spot-welding sheet metal to the frame, resulting in a
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Channels, extensions, and roll-ins are the basic ways to customize a ramp. Sometimes a section of the platform is cut away to form a roll-in and a channel to allow skaters to commence a ride without dropping in and perform tricks over the gap. Extensions are permanent or temporary additions to the
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Performance in a half-pipe has been rapidly increasing over recent years. The current limit performed by a top-level athlete for a rotational trick in a half-pipe is 1440 degrees (four full 360 degree rotations). In top level competitions, rotation is generally limited to emphasize style and flow.
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On half-pipes which are less than vertical, the height, typically between 50% and 75% of the radius, profoundly affects the ride up to and from the lip, and the speed at which tricks must be executed. Ramps near or below 0.91 m (3 ft) of height sometimes fall below 50% of the height of
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The character of a half-pipe depends on the relationship between four attributes: most importantly, the transition radius and the height, and less so, the degree of flat bottom and width. Extra width allows for longer slides and grinds. The flat bottom, while valued for recovery time, serves no
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Half-pipe applications include leisure recreation, skills development, competitive training, amateur and professional competition, demonstrations, and as an adjunct to other types of skills training. A skilled athlete can perform in a half-pipe for an extended period of time by
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fastener-free surface. Recent developments in technology have produced various versions of improved masonite substances such as
Skatelite, RampArmor, and HARD-Nox. These ramp surfaces are far more expensive than traditional materials.
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In a few days, the press had gotten word about Tom's creation and contacted him directly. Tom then went on to create
Rampage, Inc. and began selling blueprints for his half-pipe design. About five months later,
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purpose if it is longer than it needs to be. Thus, it is the ratio between height and transition radius that determines the personality of a given ramp, because the ratio determines the angle of the lip.
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The structure resembles a cross-section of a swimming pool, essentially two concave ramps (or quarter-pipes), topped by copings and decks, facing each other across a flat transition, also known as a
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between the quarter-pipes. The original style half-pipes are no longer built. Flat ground provides time to regain balance after landing and more time to prepare for the next trick.
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148:, and other northern San Diego County communities began using 7.3-meter-diameter (24 ft) water pipes in the central Arizona desert associated with the
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Half-pipes in snow were originally done in large part by hand or with heavy machinery. Pipes were cut into snow using an apparatus similar to a
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The design is supposed to allow for easy big air with return still on the curve and less danger of landing on the flat ("bottoming out").
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Creating a spine ramp is another variation of the half-pipe. A spine ramp is basically two quarter pipes connected at the vertical edge.
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In the early 1970s, swimming pools were used by skateboarders in a manner similar to surfing ocean waves. In 1975, some teenagers from
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620:"Joffrey Pollet-Villard breaks world record for ski superpipe high air"
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331:. The tallest snow superpipe in the world (as of 2021) is located near
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Skateboarding, freestyle BMX, scootering, and aggressive inline skating
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442:"Warren Bolster "Master of Skateboard Photography" Image: Tom Stewart"
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The current world record for highest jump in a half-pipe is held by
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to attain extreme speeds with relatively little effort. Large (high
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541:"The Dragon Lives On: Pipe Dragon inventor Doug Waugh passes away"
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In winter sports, a 6.7 m (22 ft) halfpipe is called a
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FIS Freestyle Ski and
Snowboarding World Championships in 2015
109:) half-pipes make possible many of the aerial tricks in BMX,
596:"Valentino Guseli sets world record in the LAAX superpipe"
571:"This Snow-Chomping Beast Cuts Half-Pipes For Breakfast"
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Human
Kinetics (Organization); Hanlon, T.W. (2009).
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162:magazine featured both Tom Stewart and Rampage.
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365:Quarterpipe at XLETIX running race in Germany
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499:. Engineeringcalculator.net. Archived from
247:Frame and support for skateboard, BMX, and
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444:. Concrete Wave Editions (February 2005).
692:Glossary of skiing and snowboarding terms
316:created the Pipe Dragon used in both the
41:Vert ramp with vert, transition, and flat
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415:from the original on January 6, 2018
547:. February 29, 2000. Archived from
476:from the original on April 7, 2014
398:Sports Rules Book-3rd Edition, The
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458:from the original on 2013-06-23.
401:. Human Kinetics. p. 206.
49:is a structure used in gravity
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30:For the roller coaster, see
349:. He set the record at the
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120:For winter sports such as
32:Half Pipe (roller coaster)
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201:Construction of a cycloid
285:) Manhattan, NYC - 2019
27:Structure used in sports
1369:Skateboarding equipment
545:Transworld Snowboarding
174:Mini ramp (no vertical)
150:Central Arizona Project
527:July 16, 2006, at the
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347:Joffrey Pollet-Villard
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73:, and scooter riding.
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1379:Sports venues by type
1333:Category:Snowboarding
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241:Boardmasters Festival
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216:brachistochrone curve
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146:Encinitas, California
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1053:Technique / learning
783:Cross-country skiing
717:Cross-country skiing
322:2002 Winter Olympics
187:somewhat less final
820:Olympic disciplines
600:www.boardriding.com
376:Glossary of cycling
279:Riverside Skatepark
1354:Aggressive skating
1151:List of ski brands
923:Ski mountaineering
878:Para-alpine skiing
788:Backcountry skiing
503:on August 23, 2014
470:"Vert ramp design"
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312:. Colorado farmer
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551:on August 3, 2009
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96:Half-pipe diagram
16:(Redirected from
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1301:Surface lift
1279:Gondola lift
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1100:Skate skiing
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996:Snowboarding
913:Night skiing
896:Other skiing
883:Speed skiing
868:Glade skiing
832:Giant slalom
776:Recreational
757:Ski marathon
676:snowboarding
628:. Retrieved
626:. 2015-03-19
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603:. Retrieved
599:
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579:. Retrieved
577:. 2013-01-27
574:
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553:. Retrieved
549:the original
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505:. Retrieved
501:the original
490:
480:December 22,
478:. Retrieved
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419:December 22,
417:. Retrieved
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283:Andy Kessler
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249:vert skating
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239:at the 2010
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191:(vertical).
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159:Skateboarder
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126:snowboarding
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55:snowboarding
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1296:Hybrid lift
1060:Carved turn
1009:Backcountry
918:Ski archery
767:Ski touring
729:Ski jumping
710:Competitive
310:grain auger
206:Mathematics
87:flat bottom
1348:Categories
1257:detachable
1224:Snowmaking
1214:Ski tunnel
1090:Ski school
1080:Snowplough
1075:Pivot turn
1034:Slopestyle
1019:Freeriding
986:Slopestyle
976:Ski ballet
961:Freeskiing
956:Freeriding
873:Heliskiing
734:Ski flying
722:Paralympic
630:2021-06-24
605:2021-06-24
581:2022-12-28
497:"RampCalc"
451:0973528613
382:References
314:Doug Waugh
226:See also:
1264:Funicular
1252:Chairlift
1239:Ski lifts
1197:Superpipe
1192:Half-pipe
1180:amenities
1158:Snowboard
1109:Equipment
1065:Jump turn
1029:Half-pipe
1024:Freestyle
981:Ski cross
798:Skijoring
750:Endurance
624:FREESKIER
522:Skatelite
329:superpipe
237:Vert ramp
228:Vert ramp
107:amplitude
47:half-pipe
18:Half pipe
1289:tricable
1209:Ski area
1116:Bindings
903:Biathlon
847:Combined
842:Downhill
555:June 13,
525:Archived
507:April 3,
474:Archived
456:Archived
413:Archived
357:See also
257:masonite
77:Overview
53:such as
1284:bicable
1274:Funitel
1269:Funifor
1131:Monoski
1014:Big air
951:Big air
837:Super-G
575:Gizmodo
495:Lutzy.
212:cycloid
111:skating
103:pumping
71:skating
1178:Resort
1126:Helmet
1004:Alpine
827:Slalom
672:Skiing
448:
405:
339:Open.
253:actual
166:Design
140:Origin
83:tranny
63:skiing
1229:Trail
1204:Piste
1141:Skins
1136:Poles
1121:Boots
971:Mogul
1163:Suit
1146:Skis
674:and
557:2011
509:2014
482:2014
446:ISBN
421:2014
403:ISBN
337:LAAX
333:Laax
320:and
318:1998
189:vert
124:and
113:and
1168:Wax
1350::
622:.
598:.
573:.
543:.
454:.
440:.
429:^
411:.
210:A
132:.
117:.
69:,
65:,
61:,
57:,
45:A
664:e
657:t
650:v
633:.
608:.
584:.
559:.
511:.
484:.
423:.
34:.
20:)
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