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27 March 2017, 21:36
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#41
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Member
Country: UK - England
Town: Cowes
Make: Rib Eye
Length: 6m +
Engine: 150 Yamaha
Join Date: Oct 2013
Posts: 2
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Looking good :-)
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28 March 2017, 12:17
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#42
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Member
Country: UK - England
Town: Bristol
Make: Ribcraft
Length: 5m +
Engine: Yamaha
Join Date: May 2006
Posts: 4,299
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Hows the build coming along? we want more pics
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Member of S.A.B.S. West Country Division
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29 March 2017, 19:57
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#43
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Member
Country: UK - England
Town: East Cowes
Make: Solent
Length: 5m +
Engine: Inboard ,diesel 400
Join Date: Feb 2017
Posts: 85
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Hi Matt h!, All good, most design stuff done, compact hydraulic steering ram arrived, and wouldn't fit of course!, so had to make support frame adjustments, all frames and engine ( in bits!) removed for paint refurb at present, finishing transom modification paint and filler, so very soon will be craning it all back in and beginning the big wire up,
Will send some more pics with the new developments soon, thanks very much for your continued support, rgds
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30 March 2017, 15:54
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#44
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Member
Country: UK - England
Town: Cowes
Make: Rib Eye
Length: 6m +
Engine: 150 Yamaha
Join Date: Oct 2013
Posts: 2
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Nothing is ever simple !! Typical hydraulics didn't fit :-)
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30 March 2017, 16:14
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#45
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Member
Country: UK - Scotland
Town: denny
Boat name: breezy
Make: northcraft
Length: 6m +
Engine: honda 150
Join Date: May 2016
Posts: 888
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can you do some more close up pics I like these kind of things
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30 March 2017, 21:17
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#46
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Member
Country: Ireland
Length: no boat
Join Date: Feb 2016
Posts: 315
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Very interesting project.
I have 3 (pessimistic questions)
How loud is it?
How do you contain a failure of one of the turbine discs?
How sensitive will it be to airflow changes? I'm thinking speed variation/water breaking over boat etc
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30 March 2017, 21:35
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#47
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Member
Country: UK - England
Town: East Cowes
Make: Solent
Length: 5m +
Engine: Inboard ,diesel 400
Join Date: Feb 2017
Posts: 85
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F.....ing loud!
Failure of turbine.....ouch it's going to puncture the tube!!!!
Gas turbine not bothered about airflow. Water in boat bad news, must not ingest sea water!!!
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30 March 2017, 21:48
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#48
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Member
Join Date: Jun 2010
Posts: 2,934
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Quote:
Originally Posted by Gasturbine59
Water in boat bad news, must not ingest sea water!!!
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it's a rib, water will be coming in at some point. can you build some sort of duct to minimise the chance?
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30 March 2017, 22:20
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#49
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Member
Country: UK - England
Town: East Cowes
Make: Solent
Length: 5m +
Engine: Inboard ,diesel 400
Join Date: Feb 2017
Posts: 85
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Yes an intake cover/duct is about it, its the same problem the MTT mercury outboard has!,
Obviously this is a novelty project and as such probably won't do too many sea miles!, lol!, (I am a very fair weather navigator!!), tick over is 35hp!!
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10 May 2017, 21:37
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#50
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Member
Country: UK - England
Town: Bristol
Make: Ribcraft
Length: 5m +
Engine: Yamaha
Join Date: May 2006
Posts: 4,299
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Hows the build coming along?
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Member of S.A.B.S. West Country Division
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10 May 2017, 22:52
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#51
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Member
Country: UK - England
Town: East Cowes
Make: Solent
Length: 5m +
Engine: Inboard ,diesel 400
Join Date: Feb 2017
Posts: 85
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All good!, engine back in now after inspection and paintwork, got a giant 180 litre two seat jockey fuel tank to be installed next , steel mounting frame finished , just about to fit the Bravo one leg on and then the big wire up!,.............soon!
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11 May 2017, 07:35
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#52
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Member
Country: UK - England
Town: Bristol
Make: Ribcraft
Length: 5m +
Engine: Yamaha
Join Date: May 2006
Posts: 4,299
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Fantastic. Do keep the pics coming along!!
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Member of S.A.B.S. West Country Division
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11 May 2017, 13:49
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#53
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Member
Country: UK - England
Town: East Cowes
Make: Solent
Length: 5m +
Engine: Inboard ,diesel 400
Join Date: Feb 2017
Posts: 85
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11 May 2017, 14:08
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#54
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Member
Country: UK - England
Town: East Cowes
Make: Solent
Length: 5m +
Engine: Inboard ,diesel 400
Join Date: Feb 2017
Posts: 85
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Modified extra long drive shaft with keyed semi flexi coupling on engine 
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11 May 2017, 14:16
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#55
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Member
Country: UK - England
Town: East Cowes
Make: Solent
Length: 5m +
Engine: Inboard ,diesel 400
Join Date: Feb 2017
Posts: 85
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This is the large 180litre stainless jockey seat tank to hold all that jetA1!!
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11 May 2017, 14:17
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#56
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Member
Country: UK - England
Town: East Cowes
Make: Solent
Length: 5m +
Engine: Inboard ,diesel 400
Join Date: Feb 2017
Posts: 85
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11 May 2017, 15:05
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#57
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Member
Country: UK - England
Town: Bristol
Make: Ribcraft
Length: 5m +
Engine: Yamaha
Join Date: May 2006
Posts: 4,299
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Hi Gt, looking very snug in its current location. difficult say realistically but 45 mins run time ?
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Member of S.A.B.S. West Country Division
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11 May 2017, 17:08
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#58
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Member
Country: UK - England
Town: East Cowes
Make: Solent
Length: 5m +
Engine: Inboard ,diesel 400
Join Date: Feb 2017
Posts: 85
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About 10 gals an hour, so prob 4 hours ish
Full power would be 24 gals an hour (400hp), so an hour and half, but never really invisage full chat !!!, wouldn't stay in the water, lol!!
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11 May 2017, 17:42
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#59
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Member
Country: UK - Scotland
Town: north ayrshire
Boat name: charlie girl
Make: S/R5.4/regal3760
Length: 10m +
Engine: Suzukidf70 2x6lp 315
Join Date: Jul 2009
Posts: 3,974
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Fuel consumption is actually probably not a lot different to a big v8 and probably not a whole lot different to an old school big two stroke outboard but considering the fuel is probably less than half the cost of petrol makes it not as daft as it first sounds
Probably a whole lot more fun too
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11 May 2017, 18:09
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#60
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Member
Country: UK - England
Town: Bristol
Make: Ribcraft
Length: 5m +
Engine: Yamaha
Join Date: May 2006
Posts: 4,299
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Yep totally. What is the cost of Jet A1 nowadays
I used to pay approx 0.48 per litre 10 years ago
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breezy
