World Leader in Fuel-Efficient Powerboats

Ironically, there's a disconnect between the current focus on auto fuel efficiency and a seeming disregard for fuel-efficiency in powerboats. Some 40+ footers can consume in a day what the family car burns in a year. Along with fuel consumption comes environmental impact: Hydrocarbon emissions (greenhouse gases), particulate matter, underwater radiated noise from propellors, water turbidfty and d(B)A surface sound...all primarily a function of horsepower (e.g. fuel) being applied to overcome resistance to move a boat through water. Conclusion: Ownership of a truly fuel-efficent powerboat can reduce one's carbon footprint while boating by as much as 50% or more.

In 2003, MJM Yachts  embarked on a major "green" initiative to build attractive, easy-to-handle, fuel-efficient yachts.  MJM's three designs (29z, 34z and 40z) burn aproximately half the fuel for boats their size while cruising at 25+ knots. More than 100 boats have since been produced.  This "Made in the USA"  innovation allows owners of MJM yachts to make a difference with their eco-smart craft. Unlike automobiles, they can do this without sacrificing style, comfort or performance. How is this possible? The answer lies in higher quality construction. It's easier to create a difference building boats than building cars. Competing powerboat builders use dated, low cost and/or heavy fiberglass construction methods. This opened the door for MJM Yachts to apply Formula One racing car/racing sailboat technology to build stronger and lighter powerboats having less drag. Presto! The MJM 40z gets 1.2 nmpg at 30 knots with a pair of either 370 hp Volvo Penta  D6 IPS 500s or 350 hp Cummins AXIUS sterndrives.  A 34z attains nearly 2 nmpg cruising at 25 knots with a single 440 HP Yanmar diesel.  The 29z hits 31 knots with a single 4 cylinder 260 HP Volvo D4 diesel sterndrive, getting 3 nmpg at cruise speed.  Comparatively, in car terms, owning an MJM yacht would be like owning a 50 mpg Mercedes or BMW.

Highest Quality - Pre-Tested to "0" Defects

MJM Yachts licensee, Boston BoatWorks, is the one American builder, power or sail, with a 30 year track record of building high-tech, winning designs in the best materials available such as epoxy, Kevlar, carbon and Corecell.  BBW leads the industry in using advanced pre-preg, vacuum-molding and oven post-cure methods. Master Builder, Mark Lindsay has Olympic Medal, World Championship and America's Cup winning racing yachts to his credit because they're lighter, stronger and faster. In terms of long-lasting strength?  MJM yachts are one of only a few vessels of their size that are certified and built to ISO CEMark Class A Ocean structural standards. Then we go a step further.  All systems and finish are "builder installs". The boat is launched in Boston Harbor for sea trials, testing and calibration of instruments to insure "0" defects when delivered. This extra attention to detail and advanced technology costs more.  But, why compromise customer service, quality of construction, performance and a breakthrough in fuel efficiency to meet a price? MJM's belief is that today's owners won't be satisfied with anything less than the absolute best in terms of available technology and performance. With its 7 year headstart, MJM resale value will remain high. Their powerboat competition is not likely to catch up any time soon... particularly when their first reaction is an attempt to discredit innovation by saying, "Because they are light, MJMs will get bounced around in the seas." Obviously, this was not what more than 100 experienced owners of MJM yachts discovered on sea trials prior to their purchase.

Stable, Dry Running, Offshore Planing Hulls

Apart from their stunning good looks, MJM Yachts take offshore performance to another level with Doug Zurn modified deep-V hulls.  This hull shape allows the boat to respond instantly to the helm without bow steer or bury in large waves... and keep guests dry.  A low center of gravity dampens roll in a seaway. The narrower hull shape slices through waves instead of slamming.  By not having to lug around more engine weight and fuel tanks, by having shoal draft, 12' or less beam and less than 10' bridge clearance:  MJM designs are easier to maneuver around docks, fit in more slips and are readily trucked without penalty between seasonal homes. All MJM yachts comfortably seat at least 3 couples in the pilothouse, protected by a hard-top in all weather conditions... or in fresh air with fully-opening windshields and roll-up side curtains.  See more under the PERFORMANCE tab above.

 

 

 
MJM 40z - A Passagemaker Easy as a 30 Footer

12 of these innovative new 40 foot yachts (pictured above) have been sold in 2009.  Keys to success are:  Offshore capability, being one of few vessels of its size or type certified at ISO CE Mark's most seaworthy Class A Ocean rating; Quiet and dry running cruising at speeds as high as 34 knots; Unique side-opening doors (P&S) for ease of boarding; Mega-yacht-like single level entertaining deck and pilothouse that can seat 15 in comfort; Easy joystick maneuvering using computer-controlled twin Volvo-Penta IPS pod drives or Cummins Mercruiser AXIUS sterndrives; A very functional 6 berth layout with a large island berth stateroom, truly separate shower,  and two convertible guest cabins in the main saloon and pilothouse; And, low maintenance costs as there is no uncovered wood on deck.

MJM 34z - The Perfect Performance Cruiser for Two

34z-green-fuel-efficient-ec-friendly-power-boat-yacht

The primary design objective for the 34z, the company's first boat now numbering 64 afloat, was to create a seaworthy, fast cruising boat for two that either founder Bob Johnstone or his wife Mary could operate alone with no one else aboard.  The boat had to be "spacious enough for cruising comfort yet agile for easy handling".  These normally conflicting goals mandated innovation in both design and construction. A major end benefit became extraordinary fuel efficiency. To honor that inspiration, the unofficial meaning of the corporate acronym "MJM" became "Mary Johnstone's Motorboat.  Also important was comfortable seating, visibility and ventilaiton for three couples underway in an all-weather pilothouse.  Bow and stern thrusters with a single throttle/shift make the 34z easier to park than a car.  There are many innovative features including tilt-forward Stidd seats to convert the pilothouse into a twin-berth guest stateroom, made private when lining all the windows with privacy curtains.

MJM 29z - The Ultimate Sea-Going Weekender

29z-green-fuel-efficient-eco-friendly-power-boat

The 29z has hospitable, living-room-like, wrap-around seating for 10 in a single-level cockpit and pilothouse.  At the same time it is the best sea boat of its size.  Those who have driven just about everything afloat say the 29z is "sweet"... drier, more stable and more responsive to the helm in waves than classic 50 year old deep-V Hunt designs, while being comparable in terms of wave impact. Can you believe 3 nmpg at 25 knots with a 4 cylinder 260 HP diesel and top speed over 30 knots? With 6 ft headroom belowdecks, an enclosed head and engines aft under the stern seat, the 29z has the all-weather living space and functionality of much larger boats like the Hinckley 38 TR... at only a fraction of the investment or operating cost.  When the bow-thruster is combined with the agility of a sterndrive, maneuverability in tight quarters is superb.