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| Frequently Asked Questions that you may find
helpful in exploring electric boating in general, and the
stylish Lear 204 in particular. If you still have questions
after reading these, please feel free to contact us for
additional assistance. |
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Not at all! Electric boats have been around for well
over a hundred years. At the 1893 Worlds Fair in Chicago,
a fleet of 55 electric launches carried people to and
from the water-based venues. These boats ran all day
everyday and were considered a great success. Once the
internal combustion engine was invented, the practicality
of electric propulsion was all but forgotten - not necessarily
for the right reasons.
Even now, electric launches remain
very popular in Europe, and also enjoy a large following
in Southern California. Although the basic concepts are
similar to the boats of yesteryear, huge advances in
motor, propeller, and battery technology now allow us
to enjoy a much more refined experience than our great
grandparents did.
It’s
also worth mentioning that most huge cruise ships, many
military ships and submarines, and most freight/passenger
trains operate on electric drive systems powered by diesel
generators. The electric drive is nothing new - but until
now has not been a real choice for a high-end recreational
boat. |
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While
most of us love to go fast in our boats, many have never
experienced the unique pleasure of cruising slowly and
silently in an electric boat. Waterways that we thought
we knew come alive in a new ways, and without the environmental
impact of sooty exhaust, irritating noise, or large wakes
to spoil the moment.
There is now
a high-end choice for the discerning boater interested
in the advantages of electric propulsion - the Lear 204.
Born from the same heritage as the famous LEARJET and
entirely handmade in America, the 204 represents a revolution
in marine design!
Safe, stable, and simple
to operate, with almost no maintenance and operational
costs of a dollar a day, the LEAR 204 is the perfect
choice for South Florida, and EPower Marine can show
you the way.
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Since the Lear 204 is a “displacement hull”,
it is designed to be operated within a pre-determined
range of speed – from just making way up to about 6 MPH. This top speed is limited not only by the hull
shape but by the motor controller. Anywhere within this
range, all of the components will work together in the
most efficient manner possible.
You can motor for 10 hours
at 80 % throttle, yielding a maximum distance of approximately
50 miles. The slower you go, the longer the batteries
will last, and the more miles you can cover.
Most people are very surprised just
how ‘fast’ 6
MPH really is! Considering that this boat is designed
for inland cruising, like the Intracoastal Waterway and
residential canals, this is a perfect speed for the intended
usage. Plus, you never have to worry about a ‘no-wake
zone’, because there is never a wake!
Another measure
of ‘performance’ is actually
not speed at all but “throttle response”.
This boat is surprisingly responsive to throttle changes,
and gives the operator a feeling of control and performance
unlike anything else. |
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The Lear 204 is a purpose built electric boat, not an
adaptation of existing designs. Every component is chosen
for its contribution to the overall design goals. She
is 20 feet 4 inches long, with a beam of 8 feet 5 inches,
draws 22” of water, and with the top up is 5 feet
8 inches tall, weighs approximately 2900 pounds.
There
are three basic models of the Lear 204, and many options
and upgrades available for each: 1) Lectra-Lift Hard
Top, 2) Fixed Hard Top, and 3) Soft Top. As their names
imply, the differences between each are the roof choice
you’d prefer.
The Lectra-Lift Top
This is a patented movable hard top. It raises and lowers
when you activate this control from either the helm
console or the key fob. This electric roof relies on
a separate control system - completely isolated
from the boat’s propulsion motor. We have extensively
tested this system, opening and closing the roof every
five minutes for 3 months in our testing facilities!
It works great, lasts long, and goes up or down in
45 seconds. Run it with the top down as a three-seat
sport cruiser, or with the top up as an elegant party
boat for up to 11 people. With the top down it is secure,
weather tight, and trailer-friendly.
Fixed Hard Top
This 204 model features a ridged fiberglass roof in a
non-retracting version. It provides permanent shade
from the sun and elements, creates and intimate cabin
space, and can be upgraded with EZ2CY premium window
system to create a comfortable cabin enclosure from
which to view the world as you glide by.
Soft Top
The Lear 204 soft top model is made of a durable UV-coated
waterproof fabric that resists mildew and repels dirt.
It is snapped to a sturdy four-post stainless steel
frame (which allows for trailer) and has the dual-track
system for the premium EZ2CY window system.
Patented
Hull Design
Regardless of the roof option you select, all of the
Lear 204 electric boats are built on our revolutionary
hull design. The Lear 204 has no bow wave at all and
produces very little wake. Much research and many reports
from the last five years have recognized how damaging
bow wave and wake are to our nation’s shorelines
and estuaries.
Like many racing sailboats, this hull
has a fine entry to offer the least resistance. The
widest part of the 204’s hull (the center of
buoyancy) is 66% aft of the entry along the length
of the waterline. This means that when the hull is
pushed through the water, there are no abrupt changes
in water flow to slow it down.
The increased beam (width)
and decreased depth (draft) of this hull provide the
stability and space that make it so comfortable. Adding
a long low-resistance keel allow this deign to track
with no noticeable leeway (side slip).
Electric Motor
The standard Lear Baylor 204 electric boat uses an American-made
36 volt DC industrial motor (other electric options are also availible). The motor is enhanced
with an aluminum casting that has cooling fins facing
outward. This is mounted over the motor and acts as
a passive heat sink to draw heat away from the motor,
rather than using powered cooling fans which draw moist
air into the motor and causes corrosion, and use battery
power.
The motor is rated at 5 HP continuous, but please
don’t
confuse ‘electric motor horsepower’ with ‘internal
combustion engine horsepower’. Because of the different
characteristics of electric motors, they cannot be compared
directly with IC motors. A good rule of thumb is 1
electric horsepower is equal to 2.5 internal combustion
engine horsepower. 100% of an electric motor’s
torque is available at 1 RPM, which makes it a
great choice for a displacement boat.
E-Prop®
The 204 uses a patented five-blade propeller with plates
on the blade tips. Designed for low RPM electric propulsion,
and specially engineered to “grab more water” the
E-Prop allows the Lear 204 to accelerate quickly. The
more blades a prop has, the easier it is to stay balanced.
The E-Prop® also diminishes “prop-walk” thereby
giving the boat excellent reverse maneuverability and
a care-free docking experience.
Helm Console
The helm of the 204 is beautifully appointed with a
teak steering wheel that is specially designed by Lear
Baylor, and custom built. While seated at the ergonomically
advanced console, surrounded by drink holders and a
convenient food tray, you’ll enjoy the smooth
hydraulic steering and stable operation.
Power Controller
The controller handles the heavy amp loads necessary
to power the motor. It takes its commands from the
throttle, which allows the operator to specify: fast,
slow, forward and reverse. The interface for this controller
is proprietary. It is solid state with the forward
and reverse functions completely integrated. We purposely limit maximum current to keep the motor operating at a safe temperature.
Charger
The Charger is built in to the boat and permanently connected
to the battery bank. One only has to plug in to a regular
120 volt outlet at the dock to initiate the automatic
charging process; there is nothing more to it. The
time to attain full charge will depend on how depleted
the batteries are, but will usually be between 6 to
9 hours.
The cost of a full charge is less than $2 in
electricity. So using your boat one day per week results
in operating costs of about $100 for an entire year!
Compare that to $100 per DAY in fuel on a similarly-sized
gas powered boat (incidentally, that gas would cost approx $5k/year!!)
Wiring
Our wiring harness is produced similar to wiring harnesses
made for the aerospace industry. All wiring is marine-grade
tinned copper with 105 degrees centigrade insulation.
Our connectors are watertight and made of tinned silicone
bronze. All connections are coded with their name and
number for easy recognition. The wiring harness is
produced in-house on a large flat surface with diagrams,
pictures and examples of connectors to be used. It
is thoroughly tested before installation into any of
our boats. It is wired for every feature currently
available, meaning that if you wanted to add an option
later, the wiring is ready.
High Lift Rudder
Like everything else on the Lear 204, the rudder is designed
to match the exact performance parameters of the boat.
A thick, high lift rudder only adds drag and cavitation
to a high speed boat, but is perfect for the 204. Its
shape is a natural continuation of the contour of our
keel. It is a thick high lift type that only requires
a 20% angle to turn the boat in its own length. Our
patented propeller and this rudder design make the
204 very responsive, easy to handle and more maneuverable
than competitive offerings.
Windows
The waterproof EZ2CY® window system is the best in
the world. The “clearer than glass” panels
are made with semi-hard Acrylite and Stamoid. They are
hung from a dual track, and these panels can be raised
up to the roof-liner and fastened with ball cords into
special slots in the roof so that the top can be lowered,
or for “top up” cruising without windows.
Refrigerator/Freezer
Cold air is heavy and “spills out” of a refrigerator
with a vertical door. The Lear 204 uses a top-loading
refrigerator/freezer that doesn’t waste cold air
every time it is opened. Therefore, it uses less battery
power to operate and conserves more battery power for
propulsion.
Cleats
Fabricated of high-strength powder-coated aluminum, Lear
Baylor provides the Double-Duck® cleats on the Lear
204. Easy to use and mounted with back-up plates for
exceptional strength, you wonder while all cleats aren’t
designed like this! |
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With the top up, the well-appointed interior
of the Lear 204 comfortably seats 9 - 11 adults with
plenty of legroom for all. The high ergonomic seatbacks
provide better support and are more comfortable than
competitive offerings. Operating the 204 with the top
down, maintain a sleek ‘sport boat’ look
and seat 2-3 people around the helm. |
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The Lear 204 uses six 8D AGM (Absorbed
Glass Mat) batteries made by Concord (the company which
makes the batteries for the LEARJET). A very fine boron-silicate
glass mat is used between the plates to absorb the electrolyte.
These batteries have all of the advantages of “gelled” but
can tolerate much more abuse. Since the electrolyte (acid)
is contained in the glass mats, they cannot spill, even
if broken. They are certified as “non-hazardous”,
meaning there are no fumes, as with flooded or vented
batteries, and there is no need to “top off” these
batteries with water. They are designed for multiple
discharges, and they have an easy-to-read indicator that
shows the current percentage of charge.
“8D” is
a standard designation of battery size, and these are
very large (and heavy) ones. Think of your car battery
x3 and that is about the size of one 8D. The large thermal
mass of these batteries means the internal temperature
will change much more slowly than the surrounding air
temperature. Since the liquid is dispersed within the
glass mat, the mat absorbs any expansion from freezing.
This makes them practically immune to damage from freezing
temperatures. The oxygen and hydrogen recombine inside
the battery, and the oxygen transfers back to the negative
plates while charging. The oxygen then recombines with
the hydrogen, to prevent water loss through electrolysis.
This recombination is 99% efficient, so almost no water
is lost.
While the cost of AGM batteries is higher than
flooded batteries, they are safer, won’t freeze,
and require no maintenance. If properly charged, they
should last seven years. |
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We install a “LINK 10” power meter standard
on every boat. You can consider this is your ‘fuel
gauge’, although it displays more information than
that. By monitoring this gauge you can accurately see
how much power you have used, how much you are using
at the moment, and how much power remains.
As any safe
boater would plan fuel usage for their trip, the same
holds true for electric boats. Plan on 1/3rd to get to
your destination, 1/3rd for the return trip, and 1/3rd
reserve emergency capacity. We recommend never discharging
your batteries lower than 20%, and your batteries will
definitely last longer if you don’t discharge
them down to zero.
A good practice is to always have your
boat plugged in whenever possible, as the automatic charger
will not charge beyond capacity and will keep your batteries
always ‘topped
off”. |
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Any vehicle with a towing capacity of 3500 pounds or
more will be able to tow the Lear 204 with ease. |
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Compared to a powerboat, you can expect
very little maintenance. Basically you will need to keep
the batteries charged. The LINK-10 battery indicator will
make this a simple task, and the automatic charger will always
prevent damage from
over-charging.
Compare this to the list of annual maintenance items
on a conventional boat (gas or diesel):oil changes, spark
plugs & wires, fuel filters, fuel
system cleanings, winterization/ summerization, transmission
service... none of which are required with the Lear 204.
The operational savings (time & money) really start
adding up!
Then there's
fueling - either with cans or at the fuel dock, refueling
with diesel or gasoline
is not only unpleasant, it's a fairly dangerous and nerve-racking
activity that's now unnecessary.
The "sticker
price" of
the Lear 204 varies depending on how you configure yours.
Options include different roof systems, premium sound,
refrigeration, sinks, showers, trailers and anchors.
The effective price range is $50,000 - $70,000 depending
on your roof choice and option selections. Complete details
can be found here.
And who likes to fuel
up their boats, either with cans or at the fuel dock?
Fueling up with diesel or gasoline is not only unpleasant;
it’s
fairly dangerous and nerve-racking activity. |
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Of course you can! The buyer has a wide choice of colors
for these boat components, and your 204 will be “built
from the hull up” the way you want it. Your EPower
Marine representative can show you the many options available. |
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Lear Baylor offers a comprehensive warranty on thier high quality products. Coverage includes 'limited lifetime' on drive motor, controller, propeller, and roof actuators; 10 years on hull and deck; 2 years on gel coat and other major components. Some indiviual components are covered for longer terms by the original manufaturer.
These boats are not complicated to service and all parts were chosen for long life and reliability. However, should you need service and if you are not located near a dealership EPower Marine will arrange for a competent subcontractor to handle repairs local to you. We will manage the warranty process for you! |
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