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04-10-2010, 12:30 PM
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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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100 mph with an Alpha
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Chaos for Moderator.
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04-10-2010, 05:50 PM
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#2
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Registered User
Country: Spain
Join Date: Sep 2005
Posts: 1,726
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04-10-2010, 06:54 PM
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#3
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Registered User
Country: uk
Location: poole
Occupation: retail
Interests: sport and being lazy
Boat make: ring rib
Engines: merc xr2
Cruising area: bournemouth bay
Join Date: Jan 2006
Location: poole
Posts: 1,681
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so now you've read and digested all that TD are we about to see a 100mph Extreme 21' down Soton waterway between now and next summer, but as the Extreme is a much superior hull and British it should be breaking 120
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i can na give her any more captain
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04-10-2010, 09:43 PM
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#4
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Registered User
Occupation: Champion Pie Eater
Boat name: On The Rocks
Boat make: Ring 21 marshan 17 four winns horizon, hydro 3 pointer, f2 cat, backdraft 22
Cruising area: Way up norf and Sarf coast areas
Join Date: Apr 2007
Posts: 1,619
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Thanks for that Tony enjoyed the read.
gaZ
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12-11-2010, 11:19 PM
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#5
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Senior Member
Country: UK
Location: Devon
Occupation: Garage Proprietor
Interests: PowerBoat Racing
Boat name: If Only
Boat make: Bernico F3 OCR, Bernico Prototype Inboard, and some Ribs
Engines: Yamaha Pro V 115
Cruising area: UK, France
Join Date: Jan 2005
Location: Devon
Posts: 3,095
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We did it. Average speed 99.7mph best one way of 101+ with Alpha One Drive !!
Video at www.cumbrialive.tv "2010" "Bernico does it" !!
Onboard vid on
http://www.youtube.com/user/ocrda9#p/a/u/1/tNNI07rnCks
and http://www.youtube.com/user/ocrda9#p/a/u/0/1AK1hRoaTpg
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If Only
National Outboard Immersed Propeller Mono Record 103mph
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13-11-2010, 08:02 AM
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#6
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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's pretty mental! How does the Alpha manage with that kinda power and speed? I thought they were supposed to be an awful drive?
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13-11-2010, 09:48 AM
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#7
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Senior Member
Country: UK
Location: Devon
Occupation: Garage Proprietor
Interests: PowerBoat Racing
Boat name: If Only
Boat make: Bernico F3 OCR, Bernico Prototype Inboard, and some Ribs
Engines: Yamaha Pro V 115
Cruising area: UK, France
Join Date: Jan 2005
Location: Devon
Posts: 3,095
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Quote:
Originally Posted by larby
That's pretty mental! How does the Alpha manage with that kinda power and speed? I thought they were supposed to be an awful drive?
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My theory is that whilst it is high revving it has little torque thus getting Hp @ high rpm !!
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If Only
National Outboard Immersed Propeller Mono Record 103mph
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13-11-2010, 10:03 AM
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#8
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Senior Member
Country: UK
Location: Devon
Occupation: Garage Proprietor
Interests: PowerBoat Racing
Boat name: If Only
Boat make: Bernico F3 OCR, Bernico Prototype Inboard, and some Ribs
Engines: Yamaha Pro V 115
Cruising area: UK, France
Join Date: Jan 2005
Location: Devon
Posts: 3,095
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Boat 32 !! This is where the motor started out !!
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If Only
National Outboard Immersed Propeller Mono Record 103mph
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13-11-2010, 10:05 AM
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#9
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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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Makes sense really when you think about it eh!
Congratulations by the way, not only on the speed, but mainly on getting to drive such a damn awesome bernico!! Is it yours or just on loan?
James
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13-11-2010, 10:08 AM
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#10
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Senior Member
Country: UK
Location: Devon
Occupation: Garage Proprietor
Interests: PowerBoat Racing
Boat name: If Only
Boat make: Bernico F3 OCR, Bernico Prototype Inboard, and some Ribs
Engines: Yamaha Pro V 115
Cruising area: UK, France
Join Date: Jan 2005
Location: Devon
Posts: 3,095
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Thanks Larby !! Its my boat fitted with Nico's engine !!
Bob
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If Only
National Outboard Immersed Propeller Mono Record 103mph
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13-11-2010, 10:38 AM
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#11
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Registered User
Join Date: Sep 2008
Posts: 74
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Quote:
Originally Posted by OCRDA
We did it. Average speed 99.7mph best one way of 101+ with Alpha One Drive !!
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Congrats on your achievement.Which day did you do it? I was lakeside taking photo's 3/4's of the way down the run on the Friday ,when you came close in shore.Awesome being that close it made my organs shake.
Rob C
http://rjc-photography.ifp3.com
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13-11-2010, 10:41 AM
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#12
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Senior Member
Country: UK
Location: Devon
Occupation: Garage Proprietor
Interests: PowerBoat Racing
Boat name: If Only
Boat make: Bernico F3 OCR, Bernico Prototype Inboard, and some Ribs
Engines: Yamaha Pro V 115
Cruising area: UK, France
Join Date: Jan 2005
Location: Devon
Posts: 3,095
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Friday !!
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If Only
National Outboard Immersed Propeller Mono Record 103mph
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13-11-2010, 06:44 PM
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#13
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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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Quote:
Originally Posted by OCRDA
Thanks Larby !! Its my boat fitted with Nico's engine !!
Bob
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That's mad. Almost as mad as the bloke being towed!!
So what's the advantage of having it on an alpha drive compared to having it as an outboard? Lower COG?
How many bernicos have you got now? Or is this the same one as you used last year without the awesome wrap?
James
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13-11-2010, 06:51 PM
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#14
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Senior Member
Country: UK
Location: Devon
Occupation: Garage Proprietor
Interests: PowerBoat Racing
Boat name: If Only
Boat make: Bernico F3 OCR, Bernico Prototype Inboard, and some Ribs
Engines: Yamaha Pro V 115
Cruising area: UK, France
Join Date: Jan 2005
Location: Devon
Posts: 3,095
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Quote:
Originally Posted by larby
That's mad. Almost as mad as the bloke being towed!!
So what's the advantage of having it on an alpha drive compared to having it as an outboard? Lower COG?
How many bernicos have you got now? Or is this the same one as you used last year without the awesome wrap?
James
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There used to be a rule in Ski Racing where you could have twice the CC for inboards so this ran in the F3 2ltr Class !!
I have 3 at the moment !! This one was a prototype which has'nt really taken off yet !!
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If Only
National Outboard Immersed Propeller Mono Record 103mph
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16-11-2010, 11:37 PM
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#15
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Registered User
Join Date: May 2009
Posts: 496
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Tripple digits
Quote:
Originally Posted by Tony Davis
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Thanks for sharing that Tony
That really is a fascinating article, for me not so much getting that amount of power trough an Alpha leg but the difference that all the different set ups made to speed and handling with different X heights, props, skegs, power, RPM and torque, and the way he documented the results at each stage, However I suspect that that amount of power from that engine and putting it trough an Alpha leg would be at the expense of longevity of both.
I love the way he cut the leg down to create a shorty to get a lower X dimension. I wonder if you could do that with a Bravo leg???. May have a play with that idea after I finish my boat.
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