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19-01-2013, 05:12 PM
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#1
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green army
Country: uk
Location: southampton
Interests: cars/boats/pub
Boat name: 1-52
Boat make: formula,no more tint sh?t
Engines: mercruiser v8
Cruising area: solent/iow
Join Date: Jul 2008
Location: southampton
Posts: 355
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wow 80mph
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watch what you buy off mates
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19-01-2013, 05:39 PM
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#2
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Registered User
Country: UK
Interests: Boats, engine building, shooting
Boat make: Phantom 21
Engines: Mercury 200 carb
Cruising area: Irish Sea
Join Date: Nov 2012
Posts: 55
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I won this on ebay a few months ago. It was listed as a 21ft Powerboat then.
I decided not to complete as I wanted a 21ft boat. The guy seemed genuinely unaware that he had measured it wrongly.It's actually 18'6".
The consensus from the people I spoke to is that it is probably a 'Romney Raider' built in the 70's by Romney Powerboats, a forerunner to a Marsham
The confusion over it being an Avenger seems to be down to one being listed wrongly as an Avenger on boatshed.
(Oh, and that engine is probably a long shaft)
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19-01-2013, 05:39 PM
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#3
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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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One mph per horsepower! That would be nice wouldnt it! 
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19-01-2013, 05:50 PM
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#4
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Registered User
Country: UK
Interests: Boats, engine building, shooting
Boat make: Phantom 21
Engines: Mercury 200 carb
Cruising area: Irish Sea
Join Date: Nov 2012
Posts: 55
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Quote:
Originally Posted by Hydrostream
One mph per horsepower! That would be nice wouldnt it! |
Seems to work out easy enough up to about 30hp  Then it appears to get exponentially more tricky.
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19-01-2013, 05:51 PM
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#5
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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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I want to know more about the prop that twists. If it can make that heap run 80 I want one!
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19-01-2013, 06:02 PM
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#6
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Registered User
Join Date: Sep 2007
Posts: 513
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Quote:
Originally Posted by Paul E
I want to know more about the prop that twists. If it can make that heap run 80 I want one!
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That's a variable pitch prop
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19-01-2013, 06:17 PM
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#7
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Registered User
Country: UK
Interests: Boats, engine building, shooting
Boat make: Phantom 21
Engines: Mercury 200 carb
Cruising area: Irish Sea
Join Date: Nov 2012
Posts: 55
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Quote:
Originally Posted by Marinautic
That's a variable pitch prop
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Isn't that a horsepower multiplier prop?
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19-01-2013, 06:23 PM
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#8
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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 Paul E
I want to know more about the prop that twists. If it can make that heap run 80 I want one!
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Land and Sea... torque shift prop! Like to see one surfaced, the hub is plastic 
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19-01-2013, 06:26 PM
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#9
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Registered User
Join Date: Sep 2007
Posts: 513
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Quote:
Originally Posted by Hydrostream
Land and Sea... torque shift prop! Like to see one surfaced, the hub is plastic |
correct, quite neat for skiing
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19-01-2013, 06:30 PM
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#10
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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 Marinautic
correct, quite neat for skiing
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Ive heard that! Fitted one to a searay bowrider and it did have a bit of get up!
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19-01-2013, 06:39 PM
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#11
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Registered User
Join Date: Sep 2007
Posts: 513
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I think you could preset the min & max pitch on them
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19-01-2013, 07:43 PM
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#12
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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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Yeah you could swap shims and adjust pitch with screws
Just had a look, don't think they do them any more!
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19-01-2013, 08:09 PM
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#13
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Ringle@der
Country: England
Location: Uckfield, East Sussex.
Interests: Water Ski Racing.
Boat name: Both called ‘Irresistible’.
Boat make: Bernico F1 Twin, Monterey 265SC.
Engines: 2 x Mercury 300XS's, Yanmar 315.
Cruising area: South and east coasts. Eastbourne Marina.
Join Date: Mar 2006
Location: Uckfield, East Sussex.
Posts: 758
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I read somewhere a guy in the states has bought up all the old stocks, is making new cams and doing overhauls on old props.
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Irresistible Water Ski Racing Team
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19-01-2013, 08:25 PM
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#14
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Registered User
Location: Scotland
Interests: Hole maker
Boat make: Humber Ocean Offshore
Engines: KAD 300/DPX
Join Date: Mar 2004
Location: Scotland
Posts: 958
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Quote:
Originally Posted by Hydrostream
...Like to see one surfaced, the hub is plastic |
No it's not. The hub is machined from alloy and then anodised. There is a plastic ring on the rear which pins together all three blades to ensure they pitch up equally. Oh yeh, they surface without a problem.
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JW.
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Linear Mode
