Propulsion Systems 

Comparing three types of propulsion on the same catamaran

The Three Propulsion Types

Diesel Engines

This system is used on a typical catamaran running two diesel engines 
This is the system that most boats use, it is tried and true.

What we like: 
Diesel engines are far cheaper than setting up Hybrid or Dual systems since they would come with the used boat!  Secondly, diesel engines turning a prop are anywhere from 10% to 20% more efficient than a diesel generator supplying electric power to a motor turning a prop.  The percentage range is based on the number of conversions of energy.  If you go directly from a diesel generator, without going to the batteries first, you may cut down on some of the conversions,.  In that case, there is less of a penalty, but there is some loss.  Finally, diesels have better horsepower.  The used boats we are considering will likely have two 55 hp diesel engines for a combined 110 hp! 

Why people will tell you Diesel boats are better:
At the root, the extra cost of a Hybrid system, the percentage loss during conversion, and the overall extra horsepower are the main factors which most proponents of diesel power will use to argue against a Hybrid system.  They are correct about these factors!  However, as you will see, this is not the whole story; there are many advantages for an electric propulsion system as well.

Diesel

Hybrid Systems

Running two electric motors with one or two diesel generators.
(The motors can be pods or saildrives)

The electric system obtains energy from several sources, diesel fuel (a generator), solar power, wind generators and, occasionally, a little from sailing regeneration.

What we like about a Hybrid:
They are quiet, they don't smell, they take less maintenance, and they don't burn diesel for 3-5 hours a day when running off a large lithium battery bank which is typically charged by solar panels.  In fact, on the days that we make a single day voyage, which are 90% of all passages, we won't burn any diesel fuel at all if we have electric propulsion. 

As for range, In most cases you have additional range (even with conversion losses) due to recharging via solar panels that makes up more than the conversion losses while using making electricity from diesel fuel.

Why people will tell you they are worse than a diesel boat:
They are underpowered; with only 30 hp per 20 kw electric motor, for a total of 60 hp.  If you add two more motors to get to 120hp, they use more power than your solar panels can recoup per day.  The batteries will only motor your boat for a few hours each day.  To extend your range, you must turn on a generator.  Now you are back to the same noisy, smelly, high maintenance (on the generator), and diesel burning engine, wasting fuel at a less efficient rate due to losses in conversion.   They also cost a lot more money, about $30,000 additional over the a dual system and $93,000 over existing diesel engines!

OceanVolt


Dual Diesel and Electric Propulsion

Running separate electric motors and diesel engines.
(The electric motors can be parallel or pods)

Like the Hybrid, the electric system on a Dual setup obtains energy from several sources, plus one more.  They can use solar power, wind generators, diesel fuel (when acting as generators) and, occasionally, regain power from sailing regeneration.  In addition, by adding high capacity 48v alternators to the diesel engines, we can recharge while the diesel engines are powering the boat.


Diesel/Pod

What we like about a Dual propulsion:

1) While motoring with the electric motors they are very quiet and don't smell. 

2) Anytime we are motoring off batteries we are not burning diesel.  That is around 3 to 5 hours of silent motoring each day.  In fact, on 90% of passages we won't burn any diesel fuel at all if we have electric propulsion. 

3) We will have more range than a Diesel or Hybrid boat, because you can motor off electric when you have the battery power, then switch to the more economic diesels (versus a generator), which gets rid of some of the conversion losses.  (See the fuel comparison below). 

4) We will have more horsepower available than either of the other options because you may choose to power the boat from both engines and electric motors, simultaneously.  This is excellent in a situation where more power is needed for a short time.

Why people will tell you this option is worse:

1) Weight: A Dual propulsion will be heavier than a Hybrid boat.  Now, compared to a Diesel boat, it is about the same, or lighter.  Remember that most of the added weight is in the batteries and we plan to have a lot of battery power anyway.  That means the added weight is not as significant as you might imagine.  The additional 11 kWh battery we will add weighs 237 lbs. and the electric motor portion of the engines each add 75 lbs.  That means the extra weight of this system is about 387 pounds.

However, at the same time, we will be removing a diesel generator, which will weigh 400-600 pounds ( depending on the size and model). That means the weight is virtually the same or even lighter than a Diesel boat. 

Now, if we compare the Dual system to the Hybrid, that system does weigh less.  The sail drives weigh 42.5 pounds each plus they have two diesel generators.  Figuring average weight generators at 500 pounds each, the Hybrid boat comes in about 200 pounds lighter than either a Diesel or Dual system boat.  However, the weight savings is not worth the other negatives, which are the lack of horsepower in critical adverse situations and the exorbitant cost to install a Hybrid system.

2) People will also tell you that Dual propulsion systems requires more maintenance, which is not true.

Let's start with the Diesel boat, there would actually be far less maintenance.  This is because we will run off the electric motors most of the time, putting far fewer hours on the diesel engines. Therefore, the maintenance periods are much further apart and the electrical propulsion system requires very little maintenance.

Now let's compare it to the Hybrid system; the Dual boat will require about the same maintenance since the Hybrid also has two diesel generators that also need service.

Dual Drive

Fuel Comparison

If you are interested in which system saves the most fuel, use this link to see a detailed comparison of routes and usage.

Dual Propulsion

Now that we have talked about the three systems, let's take a more detailed look at our favorite, the Dual propulsion setup.  There are two options for the system.

Combo Hybrid

Pod Motors

If we go with a production cat we would keep the two existing diesel engines  and add two SeaDrive, 7.5 kw electric pod motors, using a small generator at times.  

Parallel Motor

Parallel Motors

If we decided to build a Solitaire 1490, we have to add the entire propulsion system, therefore, we would go with one of the parallel diesel/electric systems.  Let's talk more about them below.

Parallel Motor Features

  • PARALLEL SHAFT DRIVE - Both the electric motors and diesel engines drive the same shaft and propeller.
  • REDUNDANT POWER - If either the diesel or electric system has an issue, the other can still power the shaft.
  • RECHARGING -  While on diesel propulsion, the electric motors can charge the batteries. 
  • REGENERATION - While sailing, the prop can turn the electric motor, regenerating power to charge the batteries.
  • GENERATORS - While at anchor, the engines can be used as generators.
  • LIGHTER - Because we are removing a generator, the overall parallel system is lighter.

Parallel Motor Options

Beta 50 Hybrid

Beta 50

The Beta 50 engines are 50hp each and come with 10kw electric motors.  The advantage of this system is that it costs a combined $15,448 less than the Yanmar 4JH45 and is about 4 hp higher for each motor.

Stats Per Hull
Configuration - 4-stroke, vertical, water-cooled diesel
Max. output - 36 kW / 48.9 hp @ 2800 rpm
Displacement - 2.197 ltr
Cylinders - 4 in-line
Combustion system - Direct injection
Dry weight without gear - 329 kg / 729 lbs.
Price: $27,000

Yanmar 4JH5E Hybrid

Yanmar 4JH45

The Yanmar 4JH45 engines are 45hp each and come with 10kw electric motors.  The advantage of this system is that, combined, it weighs 158 pounds less than the Beta 50.

Stats Per Hull
Configuration - 4-stroke, vertical, water-cooled diesel
Max. output - 33.1 kW / 45 hp @ 3000 rpm
Displacement - 2.19 ltr (134 cu in)
Cylinders - 4 in-line
Weight - 295 kg / 650 lbs
Price: $34,724

Yanmar 4JH5E Combi Hybrid

Yanmar 4JH5E with
Combi 10kw Parallel hybrid

The Yanmar 4JH5E engines are 53.8 hp each, which we can pair with the Combi 10 kw motor Parallel Hybrid system.  The advantage of this system is price and weight.  The dry weight of the 4J5E Yanmar Diesel is 443 lbs (201 kg).  The Combi 10kw motors weigh 100 pounds (45 kg) each.  Combined, each motor and engine weighs 543 pounds, which is 100 pounds less than the Yanmar 4JH45 Parallel engine and 180 pounds lighter than the Beta 50.  Better yet, it is much less expensive!  The engine runs around $7,500 and the Combi unit is about $11,000.  Total, that runs $18,500 per hull.  That is $13,276 less per hull compared to the Beta 50 and $21,000 less than the Yanmar 4JH45 with parallel drive, per hull!

Stats Per Hull
Configuration - 4-stroke, vertical, water-cooled diesel
Max. output - 39.6.1 kW / 53.8 hp @ 3000 rpm
10kw 48v water-cooled electric motor (13.4 hp)
Displacement - 2.19 ltr (134 cu in)
Cylinders - 4 in-line
Weight - 246 kg / 543 lbs
Price: $13,724

Based on the better price and less weight, this is our front runner for our Parallel Hybrid Diesel/Electric propulsion engine/motor.

Parallel System Diagram

If you would like to take a look at a diagram of our parallel propulsion system, click the link below...

Fuel Use Comparison

Below is a fuel use comparison of all three propulsion types, on different types of passages. 

  1. Passage One - Short passage of less then 6 hours 36 miles)                                                         Jump to the data
  2. Passage Two - Single day passage during daylight, (60 miles)                                                     Jump to the data
  3. Passage Three - Single day passages during night, (60 miles)                                         Jump to the data
  4. Passage Four - Single day passages during daylight, (90 miles)                                        Jump to the Data
  5. Passage Five - Two day passages with two says of sunlight, (260 miles)                         Jump to the Data
  6. Passage Six- 21 day Atlantic ocean crossing in Trade Winds, (3,000 miles)                               Jump to the Data
  7. Passage Seven- 21 day Pacific ocean crossing across the equator, (3,000 miles)                   Jump to the Data
  8. Passage Seven- 21 day ocean crossing becalmed for 7 days, (3,000 miles)                    Jump to the Data
Route One

1) Short Passage Less than 6 hours  
(36 nautical miles or less trips)

This is a 6 hour trip, leaving at 8 am arriving at 2 pm.

Diesel:
Burning at .50 gallon an hour, and motoring for 50% of the trip, means 3 hours of diesel motoring, so it burns 1.5 gallons of diesel fuel.

Hybrid:
Motoring on battery power for the first 3 hours and sailing the other 3 hours means zero diesel used.

Dual Diesel/Electric:
Motoring on battery power for the first 3 hours and sailing the other 3 hours. This means zero diesel was used.

Winner: either the Hybrid or Dual by 1.5 gallons per passage.

RouteTwo

2) Single Day Passage During Daylight                 (60 nautical mile trip)

This is a 10 hour trip, leaving at 7 am arriving at 5 pm.

Diesel:
Burning at .50 gallon an hour, and motoring for 50% of the trip means 5 hours motoring, so 2.5 gallons were burned.

Hybrid:
Motoring on battery power for the first 3 hours and sailing for 5 hours followed by 2 hours of motoring off of solar recharged batteries.  This means zero diesel was used.

Dual Diesel/Electric:
Motoring on battery power for the first 3 hours and sailing for 5 hours followed by 2 hours of motoring off of solar recharged batteries.   This means zero diesel was used.

Winner: either the Hybrid or Dual by 1.5 gallons per passage.

Route Three

3) Single Day Passage During Night                        (60 nautical mile trip)

This is a 10 hour trip, leaving at 10 pm arriving at 8 am.

Diesel:
Burning at .50 gallon an hour, and motoring for 50% of the trip means 5 hours motoring, so 2.5 gallons were burned.

Hybrid:
Motoring on battery power for the first 3 hours and sailing for 5 hours followed by one hour of the 20 kw diesel generator running.  Calculating a 20% conversation loss, they send 15 kw to the motors while storing about 20 kWh in the batteries.  The boat can then motor on battery power for the last 30 minutes, leaving enough for house uses when they arrive.  They used 1.6 gallons of diesel.

Dual Diesel/Electric:
Motoring on battery power for the first 3 hours and sailing for 5 hours followed 2 hours motoring on a single diesel engine. This sends just 9 KWh back into the batteries (200 amps) for house uses and maneuvering when we arrive. We used 1 gallon of diesel.

Winner: Dual boat by 0.6 gallons per passage better than the Hybrid boat and 1.7 gallons better than the Diesel engine only boat.

Route Four

4) Single Day Passage During Daylight              (90 nautical mile trip)

This is a 15 hour trip, leaving at 4 am (dark) and arriving at 7 pm (sunset).

Diesel:
Burning a half gallon an hour and motoring for 50% of the trip means 7.5 hours motoring, so 3.75 gallons were burned.

Hybrid:
They motor for the first 3 hours on batteries and then sail during the day for 7.5 hours, recharging their batteries via solar.   Then they motor on electric for another 3 hours.  At the end of the trip, they fire up the generator for an hour while recharging the batteries about 10 kWh.  They motor on battery power for the last half hour.  They used 1.6 gallons of diesel.

Dual Diesel/Electric:
They motor for the first 3 hours on batteries and then sail during the day for 7.5 hours, recharging their batteries via solar.  Then they motor on electric for another 3 hours.   At the end of the trip, they fire up a diesel engine for 1.5 hours of motoring while recharging the batteries some for House needs.  They used 1.13 gallons of diesel.

Winner: Dual boat by 0.47 gallons per passage better than the Hybrid boat, and 2.62 gallons better than the Diesel engine only boat.

Route Five

5) Two Day Passage with 2 days of sunlight   (260 nautical mile trip)

This is a 43.5 hour trip, leaving at 11 am arriving on the second day at 5:30 am.

Diesel:
Burning at .50 gallon an hour, and motoring for 50% of the trip means 21.75 hours motoring, so 10.89 gallons were burned.

Hybrid:
They motor the first 3 hours on batteries, then regain 25 kWh via solar recharge each of the two days.  That is a total of 50 kWh which is about 6 hours of motoring time.  All total, they will motor off batteries for 9 hours on this voyage.  That still leaves about 12.75 hours out of the total 21.75 that they need to motor.  They run a diesel generator for 2.5 hours, sending 25 kw to the batteries then motor for 3 hours off the battery charge.  That leaves them with 7.25 hours motoring still required.   They run the generator for 2.5 hours and motor off batteries again for 3 hours.  Now they are 1 and 3/4 hours motoring from their destination.  They run the generator for one hour and motor off batteries for the final 3/4 hours.  All total, the generator ran for 6 hours, so they burned 9.6 gallons of diesel.


Dual Diesel/Electric:
They motor the first 3 hours on batteries, then regain 25 kWh via solar recharge each of the two days.  That is a total of 50 kWh which is about 6 hours of motoring time.  All total, they will motor off batteries for 9 hours.  That still leaves about 12.75 hours out of the total 21.75 that they need to motor.  They run a diesel engine for 6 hours, sending 27 kw to the batteries from the alternator.  They switch back to the pods and go for 3 hours on batteries.  They are still 3.75 hours short, so they motor for 3 hours, sending 13.5 kw to the batteries, then motor for the remaining 45 minutes (leaving some for House uses).  All total, they ran one diesel engine for a total of 9 hours, so they burned 6.75 gallons of diesel.

Winner: Dual boat by 2.85 gallons over the Hybrid and 4.14 gallons over the Diesel boat.

Route Six

6) 21 Day Atlantic Crossing                                     (3,000 miles)

Being typical a Atlantic crossing, we can figure that they will only have to motor for two 3 hour stints per day, like early morning or during the night.

Diesel:
Burning at .50 gallon an hour, for 6 hours a day for 21 days equals 63 gallons of diesel.

Hybrid:
They motor the first 3 hours on batteries.  Then they charge up 25 kWh via solar power each day, allowing them to motor for another 3 hours per day.  This covers the motoring needed for the first day but they need an extra 3 hours each day thereafter.  They run their diesel generator for 2 hours each subsequent day, putting 15 kWh into the batteries.  They use 7.5 kWh to motor the final hour needed and the other 7.5 kWh for House needs.  They ran their diesel generator for 2 hours for 20 days, or 40 hours total.  At 1.60 gallons an hour that equals a total of 64 gallons burned.

Dual Diesel/Electric:
They motor the first 3 hours on batteries.   Then they charge up 25 kWh via solar power each day, allowing them to motor for another 3 hours per day.  This covers the motoring needed for the first day but they need an extra 3 hours each day thereafter.  They run one diesel engine for 2.5 hours each subsequent day, putting 11.25 kWh into the batteries.  They use 3.75 kw for the final half hour of motoring off electric, leaving the rest for house needs.  They use their diesel engine for a total 50 hours.  At .75 gallons an hour that equals a total of 37.5 gallons burned.

Winner: Dual boat by 26.5 gallons over the Hybrid and 25.5 gallons over the Diesel boat.

Route Seven

7) 21 Day Passage over the Equator            (3,000 mile trip).

This is a bit of a different trip. With the Trade Winds, you only need some minor motoring.  For sake of argument, we will still figure in motoring for the occasional 3 hour stints, like early morning.  That, and this time, we will calculate in the crossing of the equator as 3 days of no wind.

Diesel:
Burning at .50 gallon an hour, for 6 hours a day out of 18 equals 54 gallons of diesel.  Then add three days of motoring 24 hours a day for 36 gallons additional diesel giving them a total burn of 90 gallons.

Hybrid:
They motor the first 3 hours on batteries. Then they charge up 25 kWh via solar power each day, allowing them to motor for another 3 hours per day. This covers the motoring needed for the first day but they need an extra 3 hours each day thereafter. They run their diesel generator for 2 hours each subsequent day, putting 15 kWh into the batteries. They use 7.5 kWh to motor the final hour needed and the other 7.5 kWh for House needs. All total, they ran their generator during those 17 days for 34 hours.

However, on three days they were becalmed in the doldrums. During those three days they must motor 24 hours a day instead of six.  They still regain 3 hours of motoring from solar each day, leaving 21 hours of remaining motoring still needed per day.  While running the generator, 7.5 kw goes to the motors to keep moving while 10 kWh gets stored in the battery bank per hour.   Recharging the batteries takes 2.5 hours.  So, each 2.50 hours they regain a full charge allowing 3 hours of motoring.  To motor that extra 21 hours requires about four such cycles per day, which also leaves them enough extra power for house uses.  So each day they motor for 10 hours with the generator running burning 16 gallons of fuel, for a total of 48 gallons.  They add that to the other 17 days where they only had to run the generator for 2 hours a day, which equals 34 hours and they get a total run time of 64 hours, or 102.4 gallons of fuel burned.


Dual Diesel/Electric:
They motor the first 3 hours on batteries.  Then they charge up 25 kWh via solar power each day, allowing them to motor for another 3 hours per day.  This covers the motoring needed for the first day but they need an extra 3 hours each day thereafter.  They run one diesel engine for 2.5 hours each subsequent day, putting 11.25 kWh into the batteries.  They use 3.75 kw for the final half hour of motoring off electric, leaving the rest for house needs.  They use their diesel engine for a total 42.5 hours.  At .75 gallons an hour that equals a total of 31.88 gallons burned during those 17 days.

However, on three days they were becalmed in the doldrums.  During those three days they must motor 24 hours a day instead of six.  They still regain 3 hours of electric motoring from solar each day, leaving 21 hours of remaining motoring still needed each day. While running one diesel engine, 4.2 kWh gets stored in the battery bank per hour.  Every two hours they gain 1 hour of electric motoring (with some left for house needs).  So, they run on the diesel engine for 14 hours and electric motor for 7 hours.  All total, they run the diesel engine for 42 hours during those three becalmed days.   At .75 gallons an hour, they burn 31.5 gallons.  Add that to the 31.88 gallons from the other 17 days and you get a total diesel usage of 63.38 gallons.

 
Winner: Dual by 39 gallons per trip over the Hybrid and 26.62 gallons over the Diesel boat.

Route Eight

8) Same as above, but becalmed for 7 days (3,000 mile trip).

21 Day Passage but they are becalmed for seven days.

Diesel:
Burning at .50 gallon an hour, for 6 hours a day out of 14 equals 42 gallons of diesel. Plus, seven days of motoring 24 hours a day when becalmed is 84 gallons for a total burn of 126 gallons.


Hybrid:
Everything is the same as the voyage above, but now they use their generator, burning 3.2 gallons a day for 13 days and 16 gallons a day for 7 becalmed days. That totals 153.6 gallons burned.

Dual Diesel/Electric:
Everything is the same as the voyage above, but now they run one diesel for 13 days for 2.5 gallons (32.5 gallons). Plus, for seven days, they have to run one diesel for 14 hours a day, using 73.5 gallons during the 7 days becalmed. That plus the other 32.5 from the 13 days is 106 gallons total.

Winner: Dual by 47.6 gallons per trip over both the Hybrid and 20 gallons less than the Diesel boat.

Fuel Consumption Winners

Passage Length Miles WinnerOver DieselOver Hybrid
Passage One35Hybrid or Dual1.5 gallonsEqual
Passage Two60Hybrid or Dual1.5 gallonsEqual
Passage Three60Dual1.7 gallons0.6 gallons
Passage Four90Dual2.62 gallons0.47 gallons
Passage Five260Dual4.14 gallons2.85 gallons
Passage Six3000Dual25.5 Gallons26.5 Gallons
Passage Seven3000 (3 days becalmed)Dual26.62 gallons39 gallons
Passage Eight3000 (7 days becalmed)Dual20 gallons47.6 gallons
Showing entries (filtered from total entries)

Fuel Comparison Conclusion

In the examples above, the Diesel boat saves fuel over the Hybrid in three cases (all the longer passages).  While the Hybrid beats the Diesel in all the shorter passages.  However, in all but the two short passages, where they tie, the Dual boat beats the Hybrid on fuel savings.  Against the Diesel boat the Dual boat always saves fuel, long or short passages.  Therefore, when it comes to fuel savings, the Dual boat wins, hands down. 

Cost Comparison

What about what it costs to add a Hybrid or Dual system to an exiting Diesel boat?  And, what are the fuel savings over time?

Initial Cost to add Hybrid system

Hybrid System Components:

Two Oceanvolt ServoProp Motors: $50,000
Two 20 kw Generator: $18,000
Three 11 kWh LifePO4 batteries: $9,000
Two 8,000 watt Inverters: $10,000
Ten 550w solar panels $2,000
Five MPPTs: $1,000

Other things of Note:
There will be additional costs for circuit breakers, wiring, etc., which could lead to another $3,000 approximately.

Total Price to upgrade: $93,000

Hybrid System

Initial Cost to add a Dual system

Dual System Components:

Two 49hp diesels with 10kw electric motors: $54,612
One (additional) 11 kWh of LifePO4 battery: $3,000
Two 8,000 watt Inverters: $8,000
Ten 420w solar panels $1,600
Ten MPPTs: $1,600

Other things of Note:
There will be additional costs for circuit breakers, wiring, etc., which could lead to another $3,000 approximately.

Total Price to upgrade: $68,812

Combo System

Cost Conclusion

After calculating all our passages on our double circumnavigation, we come up with approximately $50,000 savings in diesel and propane fuel for the Dual propulsion system and a little less for the Hybrid, about $48,000.  Figuring in the reduced maintenance of either system over a Diesel boat, we save an additional $37,000 with the Hybrid or Dual systems.  Therefore, the total savings (fuel and maintenance) equals $85,000 for the Hybrid and $87,000 for the Dual system.

That means, after subtracting fuel and maintenance savings from the purchase costs of the two systems, the long term savings of the Dual system over the used Diesel boat is about $18,000.  On the other hand, due to the high initial cost, over the long run, the Hybrid loses about $6,000 compared to the Diesel boat.

Therefore, the Dual system saves us the most money in the long run.

Horsepower Comparison

What about how much horsepower we obtain with each system?

  1. Diesel Engines - there are two 55 hp diesels                                                                              Total: 110 hp
  2. Hybrid motors - There are two 20kw electric motors, which supply about 30 hp each.    Total: 60 hp
  3. Dual Engines & Motors - Two 10 kw motors (13 hp ea.).  Plus two Beta 40 49hp diesels.     Total: 124 hp.

As you can see, the Hybrid boat is woefully underpowered in comparison to the other two options.  The Dual system boat beats the Diesel with 14 additional horsepower.  Horsepower is the category that eliminates the Hybrid from our consideration since it does not have enough power to motor us out of a dire situation or get us up the current of a strong river.  Of the other two systems, the Dual boat is the best.  Yet, both the Hybrid and the Dual system boats are better than the Diesel boat in every situation where you don't need all that horsepower, like maneuvering around a marina where electric gives you full torque at any RPM, or when you are departing early from your anchorage and don't want to have to warm up the smelly, noisy, fuel wasting, diesel engines.  Winner, obviously, the Dual system boat.

Final Conclusion



The Dual system wins in every category we have listed (except for weight against the Hybrid).  And, with the Dual system boat, we get all the comforts of electric propulsion and far less times where we must obtain diesel fuel compared to the Diesel boat. 

It is also safer than a Diesel or Hybrid boat.
1) Compared to a Diesel boat, we have no need for propane, eliminating any chance of an explosion from a leak.  (note, we also save the hassle of filling those propane bottles)

2) We get rid of the dangers and limitations of an underpowered Hybrid boat in any dire situation where power is needed. 

3) Compared to the Diesel boat, we get rid of storing gasoline by going with an electric dinghy.

Therefore, the Dual propulsion system is our winner, by a long shot. And though an initial $68,812 to install the new parallel diesel/electric engines is a hard pill to swallow, in the long run, it pays that all back in fuel, propane, and maintenance savings, costing $18,000 less than even the used, existing diesels engines, while adding a whole lot of comfort to the voyage.


Combo System

Help us out

Subscribe S/V Lynx Youtube

Please subscribe to our Youtube channel and earn a chance to win a cabin for a week on S/V Lynx!  To subscribe, click the Youtube link (left).

Made with Mobirise - Click for more