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26-02-2005, 08:27 AM
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#41
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Registered User
Country: england
Location: southampton
Occupation: Self employed monkey
Interests: racing, gettin wet.
Boat name: sea j marine
Boat make: 12ft scorpio,14 fletcher,16 argo
Engines: 25hp merc and 90 yam
Cruising area: southampton water
Join Date: Nov 2004
Location: southampton
Posts: 888
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.
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the day before you die your life flashes before you... make it worth watching.
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27-02-2005, 10:00 AM
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#42
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Registered User
Country: england
Location: southampton
Occupation: engineer
Interests: lots
Boat make: scorpion 8.1
Engines: 250HO
Cruising area: solent
Join Date: Mar 2004
Location: southampton
Posts: 1,353
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C13 needs to trim their nose hairs
are they antistuff things?? do they work? or do they work well on a boat that is known for stuffing like them bat boats??
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27-02-2005, 10:07 AM
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#43
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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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I think they're more of a recovery aid than anti-stuff, coz they can only come into play once you've already stuffed!
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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27-02-2005, 12:14 PM
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#44
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Registered User
Country: Essex
Location: Great Stambridge Essex
Occupation: Director Paving company
Interests: Boating/Squash
Cruising area: Essex Marina/crouch southeast coast
Join Date: Sep 2004
Location: Great Stambridge Essex
Posts: 2,033
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some nice pics there
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27-02-2005, 01:44 PM
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#45
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Registered User
Country: england
Location: southampton
Occupation: Self employed monkey
Interests: racing, gettin wet.
Boat name: sea j marine
Boat make: 12ft scorpio,14 fletcher,16 argo
Engines: 25hp merc and 90 yam
Cruising area: southampton water
Join Date: Nov 2004
Location: southampton
Posts: 888
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how about these:
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the day before you die your life flashes before you... make it worth watching.
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27-02-2005, 01:49 PM
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#46
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Registered User
Country: england
Location: southampton
Occupation: Self employed monkey
Interests: racing, gettin wet.
Boat name: sea j marine
Boat make: 12ft scorpio,14 fletcher,16 argo
Engines: 25hp merc and 90 yam
Cruising area: southampton water
Join Date: Nov 2004
Location: southampton
Posts: 888
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__________________
the day before you die your life flashes before you... make it worth watching.
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27-02-2005, 01:54 PM
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#47
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Registered User
Country: england
Location: southampton
Occupation: Self employed monkey
Interests: racing, gettin wet.
Boat name: sea j marine
Boat make: 12ft scorpio,14 fletcher,16 argo
Engines: 25hp merc and 90 yam
Cruising area: southampton water
Join Date: Nov 2004
Location: southampton
Posts: 888
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__________________
the day before you die your life flashes before you... make it worth watching.
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27-02-2005, 11:14 PM
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#48
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Registered User
Country: UK
Location: At home
Occupation: IT stuff
Interests: danger boat
Boat name: Blue Ice
Boat make: Scorpion RIB 7.5m
Engines: Just the one :-(
Cruising area: In the sea
Join Date: Mar 2004
Location: At home
Posts: 469
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OK this has got me thinking....
Those of you with twin engines, who's got contra-rotating gearboxes?
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27-02-2005, 11:32 PM
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#49
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Registered User
Join Date: Mar 2004
Posts: 6,891
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Me.
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27-02-2005, 11:57 PM
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#50
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Registered User
Country: UK
Location: At home
Occupation: IT stuff
Interests: danger boat
Boat name: Blue Ice
Boat make: Scorpion RIB 7.5m
Engines: Just the one :-(
Cruising area: In the sea
Join Date: Mar 2004
Location: At home
Posts: 469
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Quote:
Originally posted by Matt
Me.
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Ta Matt.
Any more twingos?
Jonny, TD... are you contra-rotators???
Anyone else?
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27-02-2005, 11:58 PM
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#51
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Registered User
Join Date: Mar 2004
Posts: 6,891
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Almost anyone with twins has contra rotating props.
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28-02-2005, 12:04 AM
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#52
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Registered User
Country: UK
Location: At home
Occupation: IT stuff
Interests: danger boat
Boat name: Blue Ice
Boat make: Scorpion RIB 7.5m
Engines: Just the one :-(
Cruising area: In the sea
Join Date: Mar 2004
Location: At home
Posts: 469
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OK - there was an interesting post on da toob site a while ago...
I think it was fjordrafting that said after the failure of his contra rotating Evinrude, that the left hander is always weaker then the right hander.
Whadda ya reckon?
And how is the reverse gearing achieved? Surely this could/should be enginerered to be just as durable as the standard right hander? Or do Bombadier/'rude just do shite left handers?
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28-02-2005, 12:32 AM
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#53
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Registered User
Join Date: Mar 2004
Posts: 6,891
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Certainly a different gear takes the load in forward than reverse, except for some engines obtain the contra prop by reversing by running the engine backwards. As to whether one way is weaker than the other, I dunno really, you'd like to think when they designed the reverse rotation gearbox they designed it to be just as strong. I have heard if you run a normal o/b gearbox in reverse to get the contra rotation that it's a lot weaker.
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28-02-2005, 06:48 AM
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#54
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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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with OB's I reckon it's a little weaker, but bravo's are not bothered which way you run them. (there isn't a left n right, they'll run either way)
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"I Agree with everything you say really!" - John Cooke to Jon Fuller - 26-01-2013
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28-02-2005, 07:11 AM
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#55
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Registered User
Country: New Zealand
Location: Auckland
Occupation: Construction Manager
Interests: Offshore Powerboat Racing
Boat name: NZ Privateer
Boat make: 29ft Catamaran
Engines: 2 x Mercury 300X
Join Date: Dec 2004
Location: Auckland
Posts: 214
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i ran twin Evinrude Vindicators on my catamaran for two seasons and the counter rotating gearbox was actually stronger than the right hand one.
i now have twin 2.5EFI Mercs with sportmaster boxes and also have a counter rotating one and have no problems
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28-02-2005, 08:50 AM
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#56
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Senior Member
Country: England
Location: Warsash
Occupation: Boat Designer
Interests: sport
Boat name: Santana
Join Date: Mar 2004
Location: Warsash
Posts: 1,838
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Hi Kiwi racer
How about some pics of your boat and anything else different from NZ on the site?
Would be great to see some new boats.
Adam
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28-02-2005, 09:31 AM
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#57
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Registered User
Country: england
Location: southampton
Occupation: engineer
Interests: lots
Boat make: scorpion 8.1
Engines: 250HO
Cruising area: solent
Join Date: Mar 2004
Location: southampton
Posts: 1,353
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who builds the b28?? got a web site? i know its ocke designed
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28-02-2005, 11:44 AM
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#58
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Senior Member
Country: UK
Location: Christchurch, Dorset
Occupation: Marine Engineer-ish
Interests: Boats, Cars.
Boat name: Splash 4
Boat make: Hunton
Engines: Mercruiser 640
Cruising area: Poole, Solent
Join Date: Feb 2005
Location: Christchurch, Dorset
Posts: 599
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Air Shots
Here's a really old air shot. This is my Grandfather, Bert Shead in Inertia in the Cowes Torquay in 1964. The boat was a Levi design built in wood by Clarkes in Cowes with a pair of straight six volvos ran about 45 miles an hour. This design was later used as the smaller of the Trintella boats. Got loads more of this stuff that I will have to scan in.
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28-02-2005, 11:47 AM
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#59
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Senior Member
Country: UK
Location: Christchurch, Dorset
Occupation: Marine Engineer-ish
Interests: Boats, Cars.
Boat name: Splash 4
Boat make: Hunton
Engines: Mercruiser 640
Cruising area: Poole, Solent
Join Date: Feb 2005
Location: Christchurch, Dorset
Posts: 599
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Sorry guys I can't get the photo to attach- anyone explain how to do it please ?
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28-02-2005, 12:39 PM
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#60
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member
Join Date: Apr 2004
Posts: 1,039
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Quote:
Originally posted by pennpromo
Sorry guys I can't get the photo to attach- anyone explain how to do it please ?
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probably too big, ya need to re-size to 'large web' approx 640x429 I think.
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