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24-03-2011, 11:25 AM
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#1
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Registered User
Country: Job Centre
Location: In a box
Occupation: Chaos's gofer
Interests: Skiving
Boat make: Spectre 30
Engines: 2 x Promax 225
Cruising area: In the bath
Join Date: Mar 2004
Location: In a box
Posts: 5,201
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Huge horsepower
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Chaos for Moderator. 
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24-03-2011, 12:49 PM
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#2
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Registered User
Country: Guernsey
Occupation: Postie
Interests: Heavy Heavy Metal
Boat name: Slayer II, Slayer, Pen15
Boat make: Phantom 19G-R, Bernico F2 Extreme, Ring 15
Engines: Evinrude 115HO, Yam 90
Cruising area: Channel Islands
Join Date: Aug 2009
Posts: 1,460
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What on earth is under all that polished metal to make that much power?!
The twin turbo V8 is a work of art! Shame there's so little info on the site
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24-03-2011, 12:54 PM
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#3
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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Quote:
Originally Posted by Tony Davis
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Saw those mentioned on OSO or somewhere - seems to be a rotary engine but details are few and far between. Certainly looks good!
I think those photos are from the Miami show?
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Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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24-03-2011, 06:38 PM
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#4
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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It doesnt look like an engine. More like some kids tin foil and toilet roll tube fantasy 
Amazing amount of power though!
I wonder is "first scheduled maintence" a polite way of saying turning inside out!
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24-03-2011, 07:52 PM
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#5
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Registered User
Join Date: Mar 2004
Posts: 6,891
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But what is it?
At first thought I wondered maybe deltic with the triple cranks, but the size suggest it's a wankel type thing, rather than reciprocating, and the high rpm kinda supports that.
Quad rotors per crank, geared together?
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24-03-2011, 07:59 PM
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#6
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Registered User
Join Date: Jun 2009
Posts: 670
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looks like it may have 12 rotary chambers and linked to a common crank...awesome piece of kit 
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24-03-2011, 08:28 PM
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#7
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Registered User
Country: Guernsey
Occupation: Engineering
Boat make: None, boo!
Engines: Turbines mainly!
Cruising area: The inside of my workshop!
Join Date: Mar 2008
Posts: 2,646
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Yeah it is wankel based, lotos of rotors. There is a really good thread on OSO as cookee mentioned but I can't find it now. Freaking awesome but I hate those pointy pipes!
James
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24-03-2011, 10:01 PM
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#8
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Registered User
Country: Sweden
Location: Österskär
Occupation: Adman
Interests: Boats, design, advertising, music, movies, boats, boats, boats ;-)
Boat name: Speedy Canoe
Boat make: Aero 21
Engines: Mariner 150
Cruising area: Stockholm archipelago
Join Date: Oct 2007
Location: Österskär
Posts: 131
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Quote:
Originally Posted by larby
Yeah it is wankel based, lotos of rotors. There is a really good thread on OSO as cookee mentioned but I can't find it now. Freaking awesome but I hate those pointy pipes!
James
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Is it this thread?
http://www.offshoreonly.com/forums/g...-pump-gas.html
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25-03-2011, 08:58 AM
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#9
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BananaShark Member
Country: UK
Location: Salcombe South Devon
Occupation: Racer and builder
Interests: Winning races
Boat name: BananaShark
Boat make: BananaShark 34' Race
Engines: Twin Yanmar BY 260's
Join Date: Mar 2004
Location: Salcombe South Devon
Posts: 4,638
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Quote:
Originally Posted by jonp
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That's the thread - nothing since the end of February and he really hasn't added much information about when they will hit the water or be on the market.
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Cookee
British Champions! RIB Formula 1 2005
National Speed Record Holder at 90.15 (still)
www.bananasharkracing.com
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27-03-2011, 11:41 PM
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#10
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Registered User
Location: falmouth
Boat name: purple haze
Boat make: vector xr 24
Engines: cosworth yb turbo 300
Join Date: Apr 2009
Location: falmouth
Posts: 151
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Rotary,s in my experiance give great power but they are 2 stroke engine,s and give the same nightmare fuel consumption and engine life when tuned they eat rotor blades for breakfast, esp running high boost,on the plus side they sound mental on boost and go like a 2 stroke on nitrous where do i sign !!
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28-03-2011, 08:19 AM
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#11
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numbskull
Country: United Kingdom
Location: South
Occupation: none
Interests: none
Boat name: Leviathan
Boat make: Phantom 28
Cruising area: South Coast
Join Date: Mar 2004
Location: South
Posts: 15,959
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Quote:
Originally Posted by cosworth mirage
.....on the plus side they sound mental on boost and go like a 2 stroke on nitrous where do i sign !! |
http://boatmad.com/vids/wankelturbo.wmv
I think this was supposed to run 118. might be wrong.
__________________
.
"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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28-03-2011, 01:36 PM
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#12
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Registered User
Country: Guernsey
Occupation: Engineering
Boat make: None, boo!
Engines: Turbines mainly!
Cruising area: The inside of my workshop!
Join Date: Mar 2008
Posts: 2,646
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That thing's awesome, every time you think he's flat out he nails the throttle and goes even faster!
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28-03-2011, 02:32 PM
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#13
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Registered User
Country: Ireland
Location: Dublin
Occupation: Boatbuilder
Boat make: Hydrostream V-king, 650SS OCR ,Ring 21, Ring 18, Phantom 18.
Engines: 300Hp Mercury 2.4, 130 Yamaha, Bridgeport EFI, XR6, Merc 200.
Cruising area: Malahide, Dublin
Join Date: May 2004
Location: Dublin
Posts: 1,803
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Quote:
Originally Posted by Jon Fuller
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I think thats about right, and through an Alpha drive if memory serves me right!
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