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01 December 2005, 18:36
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#21
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RIBnet admin team
Country: UK - Scotland
Boat name: imposter
Make: FunYak
Length: 3m +
Engine: Tohatsu 30HP
MMSI: 235089819
Join Date: Sep 2005
Posts: 11,636
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the two outside engines appear to be mounted higher on the transom than the inboard ones - is there a reason?
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01 December 2005, 18:40
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#22
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Member
Country: UK - England
Town: helston
Boat name: pressman
Make: Carson 900
Length: 9m +
Engine: twin 370 yanmar
Join Date: Jul 2005
Posts: 373
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Quote:
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Originally Posted by Petrov
Nops, there is no cavitation at all and the middle engines has UL rigg and the side engines are Xl.
We didnt have the right props on (25 on the sides and 23 in the middle, we had a topspeed of 59 knots and an acceleration of 0-50 knots in seconds.
Boat is 13m and 3,2m wide and has a weight of arond 3,5 tons (dont have the exact weight)
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Does that weight include fuel, our 9m is 3 tonne dry. When first launched we had 52knots with 1300 litres of fuel onboard
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01 December 2005, 18:51
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#23
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Member
Country: UK - England
Town: Hamble
Length: 9m +
Join Date: Dec 2002
Posts: 2,317
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Quote:
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Originally Posted by Mollulnan
Correct me if I'm wrong, but I can't see that four large outboards mounted so closely together can be anything like efficient.
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ok then, your wrong!
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It is better to remain silent and be thought a fool, than to speak and remove all doubt!
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01 December 2005, 18:58
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#24
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Member
Country: UK - Wales
Town: swansea
Boat name: Too Blue
Make: BLANK
Length: 8m +
Engine: Suzuki DT225
Join Date: Mar 2004
Posts: 12,791
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Quote:
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Originally Posted by Dirk Diggler
ok then, your wrong!
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WHY???
I can't see how 4 props that close together aren't going to interfere with each other.
I can understand the logic of the outer ones being higher to follow the shape of the V.
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01 December 2005, 19:11
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#25
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Member
Country: UK - Scotland
Make: HumberOceanOffshore
Length: 8m +
Engine: Volvo KAD300/DPX
Join Date: Oct 2002
Posts: 5,596
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Quote:
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Originally Posted by codprawn
WHY???
I can't see how 4 props that close together aren't going to interfere with each other.
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Answer your own question. Why would they?
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JW.
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01 December 2005, 19:21
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#26
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Member
Country: UK - England
Town: Mighty Penryn
Boat name: Little Joe.
Make: Avon Searider
Length: 4m +
Engine: Honda BF50
Join Date: Aug 2005
Posts: 8,875
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Quote:
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Originally Posted by jwalker
Answer your own question. Why would they?
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Look out Codders! Here comes Johnny Ramjet! Prepare to be bored rigid!! 
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01 December 2005, 19:22
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#27
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Member
Country: Sweden
Town: Stockholm
Boat name: Osprey & Ring
Make: Osprey & Ring
Length: 9m +
Engine: Plenty
Join Date: Mar 2003
Posts: 860
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Quote:
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I take it you have just bought this beast then
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No its not my beast, we went for a 10,5m with 3 Suz.
Quote:
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Does that weight include fuel, our 9m is 3 tonne dry. When first launched we had 52knots with 1300 litres of fuel onboard
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Without fuel but if you fill 1500 liters of fuel you will maybe loose one knot when you have 4 engines so it doesnt effect the speed very much.
Quote:
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I can't see how 4 props that close together aren't going to interfere with each other.
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Its a lot of trim before you get them perfect but the 2 middle engines are like a usual twin setup with UL rigg, and when you use the shorter rigg on the side they pic up water higher up to the surface wich means no interfear from the lower engines, the UL shafts are very deep down are always very wet, you have a lot of power wich means that you dont have to steer much before the boat goes were you want.
If you install a twin (or more) setup perfect and very close to each other you will have more performance than if the engines are far away from each other.
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02 December 2005, 15:36
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#28
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Member
Country: UK - England
Town: Hamble
Length: 9m +
Join Date: Dec 2002
Posts: 2,317
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Quote:
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Originally Posted by jwalker
Answer your own question. Why would they?
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Let's see codder's google his way out of this!
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It is better to remain silent and be thought a fool, than to speak and remove all doubt!
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02 December 2005, 16:09
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#29
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Member
Country: UK - England
Town: Yarmouth
Boat name: 74 Rouge
Make: Aquavite
Length: 7m +
Engine: 200 O/B
Join Date: Mar 2004
Posts: 318
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Quote:
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Originally Posted by Petrov
Ring powercraft
Here it is with 4 yammies, i filmed it yesterday.
Acceleration |
That looks really un-stable on the video - maybe pulling away quickly but it's all over the place!
Did the handling settle down?
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02 December 2005, 17:22
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#30
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Member
Country: UK - Wales
Town: swansea
Boat name: Too Blue
Make: BLANK
Length: 8m +
Engine: Suzuki DT225
Join Date: Mar 2004
Posts: 12,791
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Quote:
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Originally Posted by Dirk Diggler
Let's see codder's google his way out of this!
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Why would I need to - if it isn't blatantly obvious then I give up!!!!
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03 December 2005, 14:42
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#31
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Member
Country: Sweden
Town: Stockholm
Boat name: Osprey & Ring
Make: Osprey & Ring
Length: 9m +
Engine: Plenty
Join Date: Mar 2003
Posts: 860
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Quote:
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That looks really un-stable on the video - maybe pulling away quickly but it's all over the place!
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Boat is amazingly stable, i filmed a lot but only had 14 sek of mpg, when i filmed this the driver tested how little he had to turn the wheel for the boat to turn.
Will come up with more shots when they are finished.
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03 December 2005, 20:47
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#32
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Member
Country: UK - England
Town: Newquay
Boat name: Voyager
Make: Ribcraft
Length: 5m +
Engine: Suzuki DF140
Join Date: Dec 2005
Posts: 6
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what is the rib called
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03 December 2005, 20:50
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#33
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Member
Country: Sweden
Town: Stockholm
Boat name: Osprey & Ring
Make: Osprey & Ring
Length: 9m +
Engine: Plenty
Join Date: Mar 2003
Posts: 860
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Ring Fantasma 13m
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03 December 2005, 20:55
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#34
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Member
Country: UK - England
Town: Newquay
Boat name: Voyager
Make: Ribcraft
Length: 5m +
Engine: Suzuki DF140
Join Date: Dec 2005
Posts: 6
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i dont know
what is this boat called
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03 December 2005, 23:33
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#35
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Member
Country: UK - England
Town: Newquay
Boat name: Voyager
Make: Ribcraft
Length: 5m +
Engine: Suzuki DF140
Join Date: Dec 2005
Posts: 6
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Quote:
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Originally Posted by Petrov
Ring Fantasma 13m
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thank you for telling me.
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03 December 2005, 23:40
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#36
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Member
Country: UK - England
Town: Newquay, Cornwall.
Boat name: None :(
Make: None :(
Length: 5m +
Engine: None :(
MMSI: None :(
Join Date: Jun 2005
Posts: 1,280
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Quote:
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Originally Posted by luke cruse
what is this boat called
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Sorry folks for my sons nonsense post - hes only 8 and its his first forum - ive just taught him how to use the preview button and the quote button so hopefully will make more sense in future.
Luke - here are a couple more pics of the Fantasma 13 meter.
I need a couple of pay rises before i can afford one though  - perhaps getting him into boats is not such a good idea!!!
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14 January 2006, 21:07
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#37
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Member
Country: Sweden
Town: Stockholm
Boat name: Osprey & Ring
Make: Osprey & Ring
Length: 9m +
Engine: Plenty
Join Date: Mar 2003
Posts: 860
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And here is a Ring 10,5m Fantasma that got the engines on today.
Boat will do charter in Stockholm arcipelago.
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14 January 2006, 22:06
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#38
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Member
Country: UK - England
Town: Mighty Penryn
Boat name: Little Joe.
Make: Avon Searider
Length: 4m +
Engine: Honda BF50
Join Date: Aug 2005
Posts: 8,875
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Mean lookin' thing, but what a daft name. Is the 14m version gonna be the orgasmatron?!
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14 January 2006, 22:10
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#39
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Member
Country: Sweden
Town: Stockholm
Boat name: Osprey & Ring
Make: Osprey & Ring
Length: 9m +
Engine: Plenty
Join Date: Mar 2003
Posts: 860
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Quote:
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Mean lookin' thing, but what a daft name. Is the 14m version gonna be the orgasmatron?!
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Ha ha, nope all of them are Fantasma.
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15 January 2006, 01:04
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#40
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Member
Country: UK - England
Town: Farnborough
Boat name: Narcissus
Make: Cobra
Length: 7m +
Engine: Optimax 225
Join Date: Jul 2003
Posts: 2,364
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Or, more likely, prepare to learn something.
Quote:
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Originally Posted by Mollulnan
Look out Codders! Here comes Johnny Ramjet! Prepare to be bored rigid!! |
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