RE POWERING THE BOAT - Wharram Builders and Friends2024-03-29T06:24:25Zhttp://wharrambuilders.ning.com/forum/topics/re-powering-the-boat?xg_source=activity&id=2195841%3ATopic%3A101442&feed=yes&xn_auth=noOK thank you!!!! enjoy the Sp…tag:wharrambuilders.ning.com,2013-07-12:2195841:Comment:1036892013-07-12T15:40:23.737Zalexhttp://wharrambuilders.ning.com/profile/alexvg
<p>OK thank you!!!! enjoy the Spanish summer...</p>
<p>OK thank you!!!! enjoy the Spanish summer...</p> So I'm not the only oddball.…tag:wharrambuilders.ning.com,2013-07-05:2195841:Comment:1031822013-07-05T21:32:32.490Zreghttp://wharrambuilders.ning.com/profile/reg
<p>So I'm not the only oddball.<br></br> <br></br> <cite>Bradley [Brad] Warne said:…</cite></p>
<blockquote cite="http://wharrambuilders.ning.com/forum/topics/re-powering-the-boat?page=3&commentId=2195841%3AComment%3A103241&x=1#2195841Comment103241"><div><div class="xg_user_generated"><p></p>
<blockquote cite="http://wharrambuilders.ning.com/forum/topics/re-powering-the-boat?xg_source=activity&id=2195841%3ATopic%3A101442&page=2#2195841Comment102016"></blockquote>
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<p>So I'm not the only oddball.<br/> <br/> <cite>Bradley [Brad] Warne said:</cite></p>
<blockquote cite="http://wharrambuilders.ning.com/forum/topics/re-powering-the-boat?page=3&commentId=2195841%3AComment%3A103241&x=1#2195841Comment103241"><div><div class="xg_user_generated"><p></p>
<blockquote cite="http://wharrambuilders.ning.com/forum/topics/re-powering-the-boat?xg_source=activity&id=2195841%3ATopic%3A101442&page=2#2195841Comment102016"><div><div class="xg_user_generated"><p>Hi Reg,</p>
<p></p>
<p>I have commissioned Boatsmith to build the next Ariki 48. In the process I have been doing a lot of research and this issue of auxilliary power has been on of the points of my interest. Since Tom Hembroff (Piggy) was an Ariki pioneer I naturally was tuned in to his approach. I found the cover shot for the December 2004 of SeaPeople magazine a picture of Piggy motoring using the dinghy as you suggest. I don't know if he still uses that method.</p>
<p></p>
<p>As for Bazinga, I have decided to go with two Honda High-Thrust 60 HP outboards with 25" shafts. My logic behind this is simple, Boatsmith recommended it and since he has more Wharram experience than me I felt confident in going in this direction for our needs.</p>
<p>Brad</p>
<p>Ariki 48 Bazinga (under contruction)</p>
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</blockquote> reg said:
Hope you don't mi…tag:wharrambuilders.ning.com,2013-07-03:2195841:Comment:1032412013-07-03T18:03:55.457ZBradley [Brad] Warnehttp://wharrambuilders.ning.com/profile/BradleyBradWarne
<p><br></br> <br></br> <cite>reg said:</cite></p>
<blockquote cite="http://wharrambuilders.ning.com/forum/topics/re-powering-the-boat?xg_source=activity&id=2195841%3ATopic%3A101442&page=2#2195841Comment102016"><div><div class="xg_user_generated"><p>Hope you don't mind if I put in an oddball suggestion, but I keep thinking about the issues of dink storage, dink power and boat power. </p>
<p>Why not combine all 3 by making a dink that could be fixed under the beams much like a pod for a central…</p>
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<p><br/> <br/> <cite>reg said:</cite></p>
<blockquote cite="http://wharrambuilders.ning.com/forum/topics/re-powering-the-boat?xg_source=activity&id=2195841%3ATopic%3A101442&page=2#2195841Comment102016"><div><div class="xg_user_generated"><p>Hope you don't mind if I put in an oddball suggestion, but I keep thinking about the issues of dink storage, dink power and boat power. </p>
<p>Why not combine all 3 by making a dink that could be fixed under the beams much like a pod for a central engine configuration, obviously the mountings would need some thought but it isn't rocket science.</p>
<p>This would also help in the maintenance side as well i.e easy to bring the engine ashore.</p>
<p></p>
<p>There are obviously issues with this, but as this thread has highlighted, there are issues with any installation.</p>
<p></p>
<p>Hi Reg,</p>
<p></p>
<p>I have commissioned Boatsmith to build the next Ariki 48. In the process I have been doing a lot of research and this issue of auxilliary power has been on of the points of my interest. Since Tom Hembroff (Piggy) was an Ariki pioneer I naturally was tuned in to his approach. I found the cover shot for the December 2004 of SeaPeople magazine a picture of Piggy motoring using the dinghy as you suggest. I don't know if he still uses that method.</p>
<p></p>
<p>As for Bazinga, I have decided to go with two Honda High-Thrust 60 HP outboards with 25" shafts. My logic behind this is simple, Boatsmith recommended it and since he has more Wharram experience than me I felt confident in going in this direction for our needs.</p>
<p>Brad</p>
<p>Ariki 48 Bazinga (under contruction)</p>
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</blockquote> Ok , I understood now...
One…tag:wharrambuilders.ning.com,2013-06-16:2195841:Comment:1021962013-06-16T22:01:05.608Zalexhttp://wharrambuilders.ning.com/profile/alexvg
<p>Ok , I understood now...</p>
<p>One hypothesis I am working with is re powering the boat with a single ( and parallel Hybrid perhaps???) Nanni diesel engine ,30 HP or even 40 hp since they have almost same weight, so I am figuring out the kind of "machine room" it will need to fit in it. I would lose the redundancy of 2 machines, and the easy service of the removable outboards... on the other hand I would solve some other problems that brought me to start this discussion: i don't like to…</p>
<p>Ok , I understood now...</p>
<p>One hypothesis I am working with is re powering the boat with a single ( and parallel Hybrid perhaps???) Nanni diesel engine ,30 HP or even 40 hp since they have almost same weight, so I am figuring out the kind of "machine room" it will need to fit in it. I would lose the redundancy of 2 machines, and the easy service of the removable outboards... on the other hand I would solve some other problems that brought me to start this discussion: i don't like to have large amounts of gasoline on board, and the diesels have better mileage, specially important in long motoring times (tank capacity) and the other issues I wrote at the beginning of this discussion.</p>
<p>a single engine would force me to redesign the whole deck and cockpit , that I am rebuilding anyway to fit our cruising lifestyle.</p>
<p>another solution, maybe more common sense would be to sell the boat like it is and start to build a 46'er... I am very tempted to do so, specially after looking the great Youtube videos of the ARIKI building posted by Boatsmith .. but this is another topic.. :-)</p>
<p></p>
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<p></p> I don't have any details as I…tag:wharrambuilders.ning.com,2013-06-16:2195841:Comment:1021392013-06-16T21:32:48.009Zreghttp://wharrambuilders.ning.com/profile/reg
<p>I don't have any details as I don't even have a boat at the moment.</p>
<p></p>
<p>But I was thinking along the lines of a dink that would clip under the beams and the motor would be positioned so that it could also power the main boat.</p>
<p>Think of an enlarged engine pod that some Wharrams use when powered with a single inboard diesel.</p>
<p>This would need careful design with regard to the height of the prop and the the hull/pod clearance.</p>
<p>Also if you want to use the engine for…</p>
<p>I don't have any details as I don't even have a boat at the moment.</p>
<p></p>
<p>But I was thinking along the lines of a dink that would clip under the beams and the motor would be positioned so that it could also power the main boat.</p>
<p>Think of an enlarged engine pod that some Wharrams use when powered with a single inboard diesel.</p>
<p>This would need careful design with regard to the height of the prop and the the hull/pod clearance.</p>
<p>Also if you want to use the engine for charging electrics then a waterproof plug and socket would be required.</p>
<p>For the docking side of things, some sort of guide rail for the front end to follow under the boat, with some sort of clamp to fix the back end.</p>
<p></p>
<p>All hypothetical of course, and how this would work in any sort of sea I don't know.</p> sorry for my ignorance... but…tag:wharrambuilders.ning.com,2013-06-16:2195841:Comment:1020522013-06-16T12:35:31.471Zalexhttp://wharrambuilders.ning.com/profile/alexvg
<p>sorry for my ignorance... but would you describe better what is your idea about the 3 combined dink storage/power ??</p>
<p></p>
<p>sorry for my ignorance... but would you describe better what is your idea about the 3 combined dink storage/power ??</p>
<p></p> Hope you don't mind if I put…tag:wharrambuilders.ning.com,2013-06-14:2195841:Comment:1020162013-06-14T21:51:01.440Zreghttp://wharrambuilders.ning.com/profile/reg
<p>Hope you don't mind if I put in an oddball suggestion, but I keep thinking about the issues of dink storage, dink power and boat power. </p>
<p>Why not combine all 3 by making a dink that could be fixed under the beams much like a pod for a central engine configuration, obviously the mountings would need some thought but it isn't rocket science.</p>
<p>This would also help in the maintenance side as well i.e easy to bring the engine ashore.</p>
<p></p>
<p>There are obviously issues with…</p>
<p>Hope you don't mind if I put in an oddball suggestion, but I keep thinking about the issues of dink storage, dink power and boat power. </p>
<p>Why not combine all 3 by making a dink that could be fixed under the beams much like a pod for a central engine configuration, obviously the mountings would need some thought but it isn't rocket science.</p>
<p>This would also help in the maintenance side as well i.e easy to bring the engine ashore.</p>
<p></p>
<p>There are obviously issues with this, but as this thread has highlighted, there are issues with any installation.</p> Hello Marc
I am very grateful…tag:wharrambuilders.ning.com,2013-06-12:2195841:Comment:1018242013-06-12T11:40:24.713Zalexhttp://wharrambuilders.ning.com/profile/alexvg
<p>Hello Marc</p>
<p>I am very grateful that so many members took part of this discussion, it will help me very much and others to decide in future the way they want to go. Your system looks different and I would love that you add some technical information and pictures explaining the entire installation.</p>
<p>1950 rev looks great and low noise emission.</p>
<p>QUESTIONS</p>
<p>1. weight of the Lombardini motor. ( included the cocoon if there is one)</p>
<p>2. weight of your boat under real…</p>
<p>Hello Marc</p>
<p>I am very grateful that so many members took part of this discussion, it will help me very much and others to decide in future the way they want to go. Your system looks different and I would love that you add some technical information and pictures explaining the entire installation.</p>
<p>1950 rev looks great and low noise emission.</p>
<p>QUESTIONS</p>
<p>1. weight of the Lombardini motor. ( included the cocoon if there is one)</p>
<p>2. weight of your boat under real cruising conditions.(to find out the horsepower to consumption rate)</p>
<p>3. if you service the motor since new.</p>
<p>4. noise under way.</p>
<p>5 maximal speed at max rev.</p>
<p>6. vibrations... please describe the type of mounting and levels of noise.</p>
<p>7.cruising areas and the type of motoring you make.</p>
<p>8. type of battery charger. and if there are other machines attached to the motor. like air compressor)</p>
<p>9 reliability and satisfaction level (or if you would make some changes if you buy new)</p>
<p>10. maneuverability in tight spaces. forward , backward and turns.</p>
<p>11. hours meter in the motor and since when you have it.</p>
<p>thank you!!</p>
<p></p>
<p>cheers</p>
<p></p>
<p>alex</p>
<p></p> I have a 46 foot ORO built in…tag:wharrambuilders.ning.com,2013-06-12:2195841:Comment:1019232013-06-12T09:30:54.374ZMarc Tipperhttp://wharrambuilders.ning.com/profile/MarcTipper
<p>I have a 46 foot ORO built in 1993 which has a 30hp Lombardini Diesel motor mid mounted in an engine box which hangs between beams 2 and 3. At the rear of the engine box is a hinge bracket with a bearing tube to take the shaft. The power is transmitted from the rear of the transmission to the shaft via a PTO shaft and universal joint. The Shaft is 12 feet long and of 2 inch diameter tube. the forward end of the shaft has a solid shaft section welded to the tube. this solid shaft takes the…</p>
<p>I have a 46 foot ORO built in 1993 which has a 30hp Lombardini Diesel motor mid mounted in an engine box which hangs between beams 2 and 3. At the rear of the engine box is a hinge bracket with a bearing tube to take the shaft. The power is transmitted from the rear of the transmission to the shaft via a PTO shaft and universal joint. The Shaft is 12 feet long and of 2 inch diameter tube. the forward end of the shaft has a solid shaft section welded to the tube. this solid shaft takes the bearings (same as a car stub axle). The rear of the shaft also has a solid section which goes through a water cooled bearing on the thrust plate. The 17 inch dia prop is then fitted at the end. The thrust plate has a bearing tube below it which holds a melamine wet bearing. the thrust plate has 2 stainless cables connected to the rear corners of the thrust plate which attach to the 4th beam near the hulls, this prevents lateral movement. There is a riser tube which comes off the top of the thrust plate and rises to deck level. There is a small u shaped notch in the rear ramp which holds the riser tube in the down position. the shaft is raised by hand and a spring shackle clip attaches to the riser about 18 inches above the thrust plate to keep the prop out of the water when not in use.</p>
<p>The lombardini propels the ORO through the water at 5 knots at 1950 rpm and uses 2.1 litres of diesel per hour to achieve this.</p>
<p> </p> Hi Alex
I have found the T38…tag:wharrambuilders.ning.com,2013-06-10:2195841:Comment:1016682013-06-10T21:05:39.654ZDave Vinnicombehttp://wharrambuilders.ning.com/profile/DaveVinnicombe
<p>Hi Alex</p>
<p>I have found the T38 and easy boat to sail so my motors are primarily for getting in and out of anchorages.</p>
<p>Dragon's cruise weight is about 4.5tons.</p>
<p>I only motored when becalmed and would run one motor at a time giving me about 3 knots, a 24 litre tank would give me about 10 hours and by then the wind was usually back. I hate motoring and would rather sail at 2 kts than motor at 3! The real pain in the a... when motoring for me is that it usually happened at nite…</p>
<p>Hi Alex</p>
<p>I have found the T38 and easy boat to sail so my motors are primarily for getting in and out of anchorages.</p>
<p>Dragon's cruise weight is about 4.5tons.</p>
<p>I only motored when becalmed and would run one motor at a time giving me about 3 knots, a 24 litre tank would give me about 10 hours and by then the wind was usually back. I hate motoring and would rather sail at 2 kts than motor at 3! The real pain in the a... when motoring for me is that it usually happened at nite and I would have to hand steer as the solar panels werent charging the batteries for the autopilot (I hadnt wired up the charging coil from the motors and that was a mistake). And that is a very good reason to simply enjoy the peace and quiet of a calm nite - rather than motoring and hand steering!!</p>
<p>Two strokes are noisy and is one of the reasons I dont like motoring.</p>
<p>The vibration is not bad.</p>
<p>The motors are placed per the plans in pods between the hulls.</p>
<p>I was surprised that the cowlings of the motors sealed so well as we had a very bumpy upwind trip from Brazil to Grenada and the motors were wet all the time. No water got in thru the cowlings tho.</p>
<p>The simplicity of this set up and its efficiency for what I need it to do makes it ideal for me. Plus it seems to me to be the lightest option and most cost effective.</p>
<p></p>
<p>Cheers,</p>
<p>Dave</p>