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Jet Drive vs Sterndrive?

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Published on: 2012/09/26

From:  Jet Drive vs Sterndrive | Boating Magazine.

 

Muscling their way onto the market in the early ’90s, “sport jets” were dismissed as little more than toys, quick and agile playthings, scoffed at by serious boaters. They peaked quickly and then vanished just as fast.

But a funny thing happened on the way to obscurity. Sea-Doo and Yamaha developed bigger, more versatile offerings. Today jet-powered runabouts are the best-selling models in the 24- and 21-foot segments.

To find out why jets are giving sterndrives a run for their money, and to determine if jets are suitable propulsion for experienced boaters, we pitted a Sea-Doo 210 Challenger S featuring a single 255 hp supercharged high-output Rotax jetdrive against a Chaparral H2O 19 Sport with a 220 hp MerCruiser sterndrive and put them through their paces.

Jet Drive vs Sterndrive

 

read more at:

http://www.boatingmag.com/engines/jet-drive-vs-sterndrive?

Aprobado el uso de Hamilton Jetdrives para Cartagena

07 Agosto 2012, Florida, EE.UU.Yamaha J105 Jet Drive Cowling

Mar y Sol orgullosamente presenta barcos estilo catamarán con propulsión de chorro.

Gracias al interés del público de Cartagena y la necesidad de tener barcos cómodos con las ciénagas comunes en esa parte de Colombia, presentamos lo que posiblemente sea el primer catamarán con propulsión de chorro.

El uso de impulsores de chorro estilo Hamilton (conocidos como impulsores «jetdrive» en inglés) está aprobado para el uso con varios barcos con motores fuera de borda.

Los barcos de TwinVee, fabricados con materiales sintéticos ligeros calan muy poca agua por su diseño, sin embargo las ciénagas son poco profunda y suelen tener obstáculos semi-sumergidos.  Una colisión a velocidad con una helíce típicamente resulta con una o varias hélices dañadas.

El jetdrive proporciona una aceleración superior a la propulsión con hélices, y ofrece varias cualidades deseables para operación en las ciénagas.

  1. la unidad de propulsión cala menos agua que el casco de la embarcación
  2. el barco puede ejecutar maniobras con mayor facilidad
  3. no tiene hélice expuesto
  4. estorbar menos el fondo

Conversaciones con los fabricantes de los motores y de los barcos resultaron en la aprobación de varias combinaciones de barco y motor.

Para los que tienen o desean propulsión convencional, Mar y Sol también ofrece hélices de fabricación sintética diseñadas específicamente para colisiones subacuáticas.

Para mayor información favor de ponerse en contacto con Mar y Sol de Colombia, llamando al +57 (314) 541-3327; o bien enviando un correo a ventas@marysoldecolombia.com

(Foto de motor Yamaha fuera de borda con impulsor de chorro; www.yamahaoutboards.com)

Be sure you visit about www.MarySolColombia.com and www.CartagenaAlquilaBarcos.com on our website!  Mar y Sol loves Colombia!

Australian 16m Catamaran Ferry Uses Jet Drives

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Published on: 2012/08/07

New ferry handed over.

 

This Australian Catamaran Ferry uses jet drives to send passengers back and forth to the Bay Islands, without killing turtles and other animals in the propellers.

 

 

 

 

 

 

 

 

 

 

The first of four new fast ferries for the Southern Moreton Bay Islands was handed over yesterday and should start work within the next few weeks.

“It’s a win win win for everyone” said Member for Redlands, John English before he smashed the bottle of champagne against the blunt bow  of the commercial passenger catamaran at the Aluminium Boats Australia headquarters on the Brisbane River.

Graeme Leishman and John English

Director of Transit Sysems Australia, owner of the BITS ferry service, Graham Leishman agreed and praised John English not only for shepherding the project through the Government Departments but by being instrumental in getting a quarter of the cost of the four new boats subsidised by the Queensland Government.

BITS and Aluminium Boats Australia have literally designed their way out of being an environmental hazard.

With the increased traffic , dugongs and turtles in the shallows of the southern part of the Bay were increasingly getting into harms way.  Consequently, the EPA in its the final version of the Marine Park wanted to slow boats over eight metres to six knots through critical areas of the route between the Bay Islands and the mainland. The EPA had enough evidence to show that wild life was being chopped up and squashed by big fast boats and They argued it was time to stop it.

On the other hand, 1500 signatures on a petition in April last year showed that the move would be very unpopular with the commuters from the islands.  The slowdown would cost them an extra 20 minutes on the journey.

more at:  http://bayjournal.com.au/joomla/bayislandsjournal/54/2036-new-ferry-handed-over.html

 

 

 

 

Jet Drive vs Sterndrive | Boating Magazine

Comments: No Comments
Published on: 2012/08/07

FROM:  Jet Drive vs Sterndrive | Boating Magazine.

Jet Drive vs Sterndrive

To prop or not to prop, that is the question.

Muscling their way onto the market in the early ’90s, “sport jets” were dismissed as little more than toys, quick and agile playthings, scoffed at by serious boaters. They peaked quickly and then vanished just as fast.

But a funny thing happened on the way to obscurity. Sea-Doo and Yamaha developed bigger, more versatile offerings. Today jet-powered runabouts are the best-selling models in the 24- and 21-foot segments.

To find out why jets are giving sterndrives a run for their money, and to determine if jets are suitable propulsion for experienced boaters, we pitted a Sea-Doo 210 Challenger S featuring a single 255 hp supercharged high-output Rotax jet drive against a Chaparral H2O 19 Sport with a 220 hp MerCruiser sterndrive and put them through their paces.

Jet Drive vs Sterndrive

 

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