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Originally Posted by Jassman
(Post 2915707)
Part of what you are saying is true..but factor in weight/size to power/torque ratio and the Yanmar just works....physics... and it works reliably on numerous Nor-Tech boats...that is why they use them....call backs in the marine or any business need to be at a minimum. My 43 Nor-tech weight is more than Jays new boat and the boat hit 74.6. This is not a hi tech bottom either with multiple steps..The same set up in Adib Mastry's 39 Nor-Tech boat..(owner of Yanmar in Sarasota)...did 80 gps and I believe high 81's on radar. My deal is.. if it aint broke..leave it the heck alone.. heres a video of that Yanmar boat..click the silver boat w/red strip..39 11,000. Nor-Tech
http://www.nor-techboats.com/videos.php |
Originally Posted by HabanaJoe
(Post 2912040)
Metal Bros Racing - Banks gave you a quote for $17,500 for a "tunable" Duramax that goes from 350 -550 Hp is that what you are saying?
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Originally Posted by METAL BROS RACING
(Post 2944116)
yessir
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Btw???
Originally Posted by Rik
(Post 2944297)
I spoke with some guys this morning in Norway that are doing the Duramax diesels, 3600 rpm 580 hp and they say they are great? Not from Gale Banks though
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blacklabmarine,
You might want to take a look at what this company is doing. I am assuming that this is the type of boat you would be building. http://www.dockstavarvet.se Their Combat Boat 90 H is used in the youtube video of German cops chasing greenpeace at a G8 summit. If this is along the lines of what you are trying to do pay particular attention to their numbers. With 1,600 hp and waterjet drives they are getting 50mph. This boat is longer than what you propose by 6 feet and probably has a little more beam. They also have the Interceptor Craft 11 M which is about 5' shorter than what you are trying to do, but right in the weight range you mentioned (assuming they are actually using tons and not tonnes for weight measurement). With 1,000 hp and waterjets they aren't even breaking 50mph. Working from the numbers on these boats I think you may need 2,000+ hp to get to the speeds you want, especially in a fully loaded boat. |
Originally Posted by 29Firefox
(Post 2945536)
Did ya ever hear back from the dude with the scarab down south of me?:drink:
They ask for more time to test the propellers but ? Call them and give them anこんにちは |
2 Attachment(s)
I always liked this one!!
Duramax powered MTI...Old Tommy Bahama boat. |
Originally Posted by Hot Stepper
(Post 2912307)
FOund this in an email I just got. might give you some more ideas
http://machinedesign.com/article/118...ower-boat-0616 Here's the specs Tech Specs Length (at waterline) 100 ft Beam 29.5 ft Draught 4.5 ft Displacement (half load) 95 tons Cruising speed 60 kn Engines Three gas turbines for 16,800 hp Auxiliary power Two Cummins diesels for 740 hp Range @ cruise 380 nm Range @ 9 knots 1,500 nm Fuel consumption @60 knots 15 gallons/nm Fuel capacity 5,812 gallons Fresh-water capacity 317 gallons Water making Idromat MC-105 makes 79 gallons/hr Generators Two 33-kW Kohler units generate 380 V @ 50 Hz Navigation aids Autopilot, GPS, Satcom, Depth-sounder, wind instruments, radar, gyrocompass Entertainment Hi-fi radio, three 15-in. LCD TVs, three 20-in. LCD TVs Accommodations Six guests/Six crew Tender 15-ft inflatable with 40-hp engine |
Originally Posted by thisistank
(Post 2945891)
I always liked this one!!
Duramax powered MTI...Old Tommy Bahama boat. |
Originally Posted by Catmando
(Post 2946018)
Hey tank wasup got any numbers on TB's new setup?
I'm still curious too. |
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