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Old 08-12-2014, 02:42 PM   #1
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Get Me Home Power

Looking at a single screw vessel and doing research on get home.

Would love an outboard diesel but hard to find the old Yanmar and their real expensive if you could import.

Anyone heard of a small stern (IO) drive unit at reasonable cost. Would act as stern truster as well. Maybe could use the engine for hydralic purposes like winch etc. as well.

The wing motor thing is less attractive because of mechanics and NO stern truster.

Kingfish
New Orleans
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Old 08-12-2014, 06:48 PM   #2
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Kingfish

My last trawler was a single screw with a get home system. I used it one time from 40 miles offshore. It went like this:

There was a large pump on the front of the 7.5 Kw Onan generator with an electric clutch. Kind of like a truck power steering. A two belt pulley was added to the front of the generator. The pump bracket allowed me to change fan belts.

On top of the main transmission there was a bracket that held a hydraulic motor. The motor had a chain sprocket. Another chain sprocket was sandwiched in the coupling between the transmission and the propeller shaft.

When I needed the come home I added a special size 60 chain to the sprockets with a repair link and turned on the generator and power to the clutch.

My boat was an 8 knot boat and came home at about 4 knots with this set up.

I don't think anyone made this come home system as a production. I think the previous owner sort of copied the idea and made this one from bits and pieces.

If I had a single engine trawler I would want a set up like this.
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Old 08-12-2014, 09:17 PM   #3
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How was the hydraulic fluid cooled? How large was the fluid reservoir?
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Old 08-12-2014, 10:16 PM   #4
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We have a Westerbeke 8kw genet with a hydraulic pump that powers a stern thruster. It can be turned 90 degrees and dropped down for a get home system. I wouldn't depend upon it in anything more than moderate wind/waves conditions, but it will run until I rum out of diesel.
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Old 08-12-2014, 10:29 PM   #5
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If you are that worried about a single screw breaking down, you might consider twins. Piece of mind trumps cost everyday.
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Old 08-13-2014, 01:58 AM   #6
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If you are that worried about a single screw breaking down, you might consider twins. Piece of mind trumps cost everyday.

Oh for all that is sacred and good in the world don't get that started again!

HOLLYWOOD
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Old 08-13-2014, 05:14 AM   #7
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Oh for all that is sacred and good in the world don't get that started again!

HOLLYWOOD

HAHAHAHAHA

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Old 08-13-2014, 07:10 AM   #8
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Oh for all that is sacred and good in the world don't get that started again!

HOLLYWOOD
I look at wing engine/get home power threads as a discussion between people owning/wanting twins...they are just discussing "application".
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Old 08-13-2014, 07:45 AM   #9
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If you are worried get a twin.
otherwise don't worry.
If the engine is in good condition and well maintained it is nearly bullet proof.
Carry spare pump parts, starter motor and belts and all will be good.
Diesel engine , air, fuel and water that is all that is required.
Cheers
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Old 08-13-2014, 08:43 AM   #10
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A stern drive left in salt water is a maintenance nightmare. I suggest you put that thought out of your mind now without wasting any more time on it.

My "Get home power" is my TowBoatUS card. Cheap and effective.
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Old 08-13-2014, 08:48 AM   #11
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How was the hydraulic fluid cooled? How large was the fluid reservoir?
The reservoir was cylindrical on top and part of the pump. I would say the system held between 1 and 2 gallons. The fluid was cooled through a small exchanger in the generator raw water intake.
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Old 08-13-2014, 08:55 AM   #12
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The reservoir was cylindrical on top and part of the pump. I would say the system held between 1 and 2 gallons. The fluid was cooled through a small exchanger in the generator raw water intake.
Thanks.
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Old 08-13-2014, 10:05 AM   #13
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Outboard bracket on the swim platform or stern, guess it all depends on how far it takes to get you home, like one other OP stated, a good tow plan is cheap insurance for get home.
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Old 08-13-2014, 10:18 AM   #14
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I look at wing engine/get home power threads as a discussion between people owning/wanting twins...they are just discussing "application".
Indeed. You don't need to have a yacht to have twin screw ... a trawler will do fine. I'm probably out as finding a 30' twin screw diesel boat is not likely. But I'd pass on a twin like a 36 GB, IG, or any similar as they are all overpowered. Just because they have the same engines as the single. You want economy at 7 knots and you're not going to get it w 740 cu in of engine.

But for get home there's nothing like a twin.
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Old 08-13-2014, 10:21 AM   #15
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Originally Posted by Tidahapah View Post
If you are worried get a twin.
otherwise don't worry.
If the engine is in good condition and well maintained it is nearly bullet proof.
Carry spare pump parts, starter motor and belts and all will be good.
Diesel engine , air, fuel and water that is all that is required.
Cheers
Benn
Not sure if I want to lug around a spare starter, but the one of the most important spare parts for a diesel are FILTERS.

We have a single CAT, 2000+ hours and have never needed assitance getting home.
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Old 08-13-2014, 10:42 AM   #16
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WESMAR "Get Home" Auxiliary Propulsion Unit
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Old 08-13-2014, 11:13 AM   #17
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I don't man to be rude but why don't you take night classes in marine diesel maintenance.
Diesel engines are the most reliable engines in the world, in our family business we have truck engines with over 500,00 miles (3 have gone up to a million miles) without rebuild, Mercedes, Scania and Iveco and pumping sets with Ford or Perkins up to 25 yrs old working daily.
Most boat engine problems are from lack of use and untrained people 'fixing' them.
Apologies for being direct but there's no room for ambiguity.
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Old 08-13-2014, 12:07 PM   #18
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Originally Posted by Irish Rambler View Post
I don't man to be rude but why don't you take night classes in marine diesel maintenance.
Diesel engines are the most reliable engines in the world, in our family business we have truck engines with over 500,00 miles (3 have gone up to a million miles) without rebuild, Mercedes, Scania and Iveco and pumping sets with Ford or Perkins up to 25 yrs old working daily.
Most boat engine problems are from lack of use and untrained people 'fixing' them.
Apologies for being direct but there's no room for ambiguity.
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Old 08-13-2014, 12:14 PM   #19
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Originally Posted by Irish Rambler View Post
I don't man to be rude but why don't you take night classes in marine diesel maintenance.
Diesel engines are the most reliable engines in the world, in our family business we have truck engines with over 500,00 miles (3 have gone up to a million miles) without rebuild, Mercedes, Scania and Iveco and pumping sets with Ford or Perkins up to 25 yrs old working daily.
Most boat engine problems are from lack of use and untrained people 'fixing' them.
Apologies for being direct but there's no room for ambiguity.

Rambler

There is a bigger picture here. Went out in the Gulf of Mexico and anchored in 30 feet of water at green buoy about 40 miles out of Galveston to fish the weekend. That night the seas were about 4-6 feet. Woke up, started the engine and moved to another fishing hole. Seemed like the engine had a hard time starting. On to the next fishing hole and the engine wouldn't start. Went to the engine room and the starter was smoking. Engine had gotten some water in it during the night and lucky it started the first time. Pulled the starter and opened it up and bits of solder and stuff flew everywhere. I'm a mechanical engineer, and good mechanic, but you can't fix something without parts. My come home saved the day.
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Old 08-13-2014, 01:24 PM   #20
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...at boat shows, people would occasionally ask if we would build our Great Harbours with single engines (we actually did build ONE that way.) If they seemed to have even the least bit of a sense of humor, I would tell them, "Yes, but it would be installed off-center in the engine room - oh, and for no-extra charge, we'll include a wing engine just like it on the other side."
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