Bi-motorization is usually unsuitable on boats under six meters. The craft must be designed to support the weight of the two engines. Ideally, the two motors should be counter-rotating so that torque effects cancel out, making the vessel easier to steer at high speeds.
This configuration provides greater acceleration and higher top speed. It is often found on rigid inflatables.
Side-by-side on the transom, the engines share a common steering system but feature independent controls via two levers designed specifically for twin-engine craft. Most have a single fuel tank, though separate tanks are safer in terms of avoiding breakdowns due to fuel contaminated by water or clogged filters.
Manufacturers often indicate acceptable maximum power levels. Consider the weight of the motors. Different makes of the same power may vary in weight. If safety is of particular concern, consider a single motor with a smaller, auxiliary motor mounted on a bracket. This option is much cheaper, though less attractive.
- More safety; less risk of breakdown
- Reduced engine wear
- Better maneuverability in tight quarters
- Counter-rotation cancels torque effect
- Purchase and maintenance cost
- Higher fuel consumption
- Increased weight
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Sport-fishing boat : outboard center console boat (twin engine, T-Top) 270 DAUNTLESS Boston Whaler
8,33m 
27' 4"ft
New for 2013, the 270 Dauntless is Whaler's largest Dauntless yet. Incredibly spacious and loaded with premium fishing and cruising amenities, the 270 Dauntless brings a whole new level of luxury to the Dauntless...
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Cabin rigid inflatable boat (outboard, twin engine, sundeck) N-ZO 700 ZODIAC
6,99m 22' 11"ft
N-ZO™ is the result of an innovation-based approach combined with the purity of a style drawn by one of the most prestigious Italian designers: Vittorio Garroni. Offering a combination of comfort,...
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7,4m 24' 3"ft
Evolved from a long line of Navy RIB Zodiac’s Sea Rib Responders are built for Military use, so their hulls are reinforced to take the maximum G forces that are applied when fully laden and powered at maximum speed. They are simple, functional, tough,...
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9,6m 31' 6"ft
Designed to offer the maximum in terms of quality and performance, the D.960 is the best you will find. Enough room for 18 passengers...
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Sport-fishing boat : outboard center console boat (twin engine, T-Top) ST 310 Pursuit
9,5m 31' 2"ft
The New ST 310 Delivering Performance and Cruisability with Tender-Ready Construction Throughout Starting at the bow, the ST 310 delivers full wrap-around lounge seating with angled cushions ergonomically positioned for comfortable entertaining. A convertible fiberglass table accented with Corian Pursuit details doubles as a base for the portable sunpad filler...
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Motor-boat : outboard walkaround (twin engine, sun-deck) KEY LARGO 27 Sessa Marine
7,8m 25' 7"ft
The very image of youth, while at the same time elegant and refined, for the new KL 27, this open 8m model that bends all the rules of the game....
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Sport-fishing boat : outboard center console boat (twin engine, T-Top) 34 CC Fountain Powerboats
10,36m 34' 0"ft
Either way, you’ll leave the wannabes in your wake with this exceptional fishing machine. Keep in mind, this boat is descended from hulls that have won so many trophies Reggie Fountain has to stack them in the hall outside of his...
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Sport-fishing boat : outboard center console boat (twin engine, T-Top) R300 Robalo
8,89m 29' 2"ft
Robalo's R300 center console flagship combines tournament-level fishing appointments with bluewater performance in a boat that never backs down. Featuring two oversized livewells, massive...
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12,5m 41' 0"ft
Where deck space is required for access and manoeuvrability, the Protector range supplies the perfect choice. Private & separate toilet and change areas with fully complemented...
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Motor-boat : outboard walkaround (twin engine, sun-deck) FLYER 850 SUN DECK Bénéteau Motorboats
8,25m 27' 1"ft
As the largest Flyer in the range, the 850 Sun Deck is an ideal introduction to fast cruising with family and friends. Her Air Step® hull technology...
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Sport-fishing boat : outboard center console boat (twin engine, T-Top) 30 TOURNAMENT Wellcraft
9,19m 30' 2"ft
Set yourself up with this American icon: the Scarab Tournament from Wellcraft is ready for fishing excellence. From the T-top – equipped with...
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Sport-fishing boat : outboard center console boat (twin engine, T-Top) 284 CC Mako Marine
8,64m 28' 4"ft
Go big! Really big! Backed by more than 45 years of offshore fishing heritage, the MAKO 284 CC continues to stand at the top of the food chain. At 28' 4" (8.64 m) long with a 9' 10" (3.00 m) beam, it has huge amounts of room inside for maneuvering while working a fish. And it uses that deck space to also provide all the features you need for a full day on the water, including fishboxes, a loaded...
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Motor-boat : outboard center console boat (twin engine) CAP CAMARAT 8.5 CC Jeanneau - Motorboats
8,38m 27' 6"ft
Brilliant ! Defying popular misconceptions, the new Cap Camarat 8.5 Center Console combines an attractive design...
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8,79m 28' 10"ft
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Sport-fishing boat : outboard center console boat (twin engine, T-Top) CATALINA 29 Chris Craft
8,9m 29' 2"ft
Features Spacious cockpit and bow seating area Self-bailing cockpit Stainless steel...
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Cabin rigid inflatable boat (outboard, twin engine, sundeck, roll-bar) 1000 IN Lomac
10,3m 33' 10"ft
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Sport-fishing boat : outboard center console boat (twin engine, T-Top) 320 LXF Scout Boats
9,83m 32' 3"ft
The 320 LXF is all new for 2013. This luxury sportfisher model sports the fuel efficient NuV3 hull design which equates to a lower cost of ownership and less time at the fuel...
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Equipped rigid inflatable boat (outboard, twin engine, center console, sundeck) STRIDER 10 Sacs
9,9m 32' 6"ft
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7,58m 24' 10"ft
Cls 758 CONSTRUCTION Nautica Cls srl DESIGNER Uff.Tecn. Cls srl KEEL Reinforced fiberglass SECTION PNEUMATICS Neopropene Hypalon 1670 dtex ( -Orca-...
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9,85m 32' 4"ft
Rupert are uncompromising vessels for the most demanding users. With hundreds of boats sold and many years of professional use, Rupert's boats are truly tried and tested. We have used the collected experience...
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9,45m 31' 0"ft
The Tornado 9.5m model has been designed to provide a safe and efficient long range Rib that has tremendous high speed sea keeping and performance too...
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7,8m 25' 7"ft
The ASIS Open Cruising line of boats is built safe, strong and reliable. It’s designed deep V-hull gives you the best performance and handling...
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Rigid inflatable boat (passenger boat, outboard, twin engine, center console) CHARTER 30 C-RIB
9m 29' 6"ft
Consistently capable performance. Our charter RIBs are unique because they can be supplied as a turn-key product which is fully operationally capable from Day 1. They can be supplied in a variety of configurations...
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Taxi boat (outboard, twin engine, aluminium) DERVINIS1000 BORD A BORD
10m 32' 10"ft
NEW from the shipbuilder BORD A BORD, this boat is the result of specific improvements and fittings of the DERVINIS 1000 hull....
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10m 32' 10"ft
Four man console with foot straps & 30 mm heavy duty A4 stainless steel brackets 1200 litres fuel tank under the deck with pipe for cleaning Sea through water seperator & fuel filter A4 stainless steel grab handles on console Large waterproof bow locker with aluminium hatch incorporating collision bulkhead Well at rear of boat with drain plugs from waterproof compartments Heavy duty...
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8,3m 27' 3"ft
It defies all stereotypes to show its style and features an exclusive, innovative design. Although it is a cabin boat, it is built along decidedly sporty lines. The perfect rationality of its sophisticated...
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8,7m 28' 7"ft
The Serket 88 and 98 are our twin engine top of the range models. With great looks, top build...
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8,45m 27' 9"ft
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8,3m 27' 3"ft
RIB BOAT,RIGID INFLATABLE BOAT, RIB Boat 8.3m/27feet Model HYP830 Full length 830cm Full Width...
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Motor-boat : outboard walkaround (twin engine, sun-deck) SD 7.2 CABIN Selva Marine - Fiberglass
7,2m 23' 7"ft
The large bridge with traditional wrap-around windshield combines practicality and style....
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8,5m 27' 11"ft
Alongside the other ranges, Tiger marine offers the Dive Master Series with the same hulls but with opportunity...
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10,2m 33' 6"ft
Specifications Length (meters) 10.20m Beam (meters) 2.95/3.00m Draft (meters) 0.45m Tube (meters) 0.55/0.60m Weight...
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Sport-fishing boat : outboard center console boat (twin engine, T-Top) 317 TARPON Stamas
9,63m 31' 7"ft
Length: 31'7" 9.63 M LOA (rigged w/power): 33'7" 10.27M Beam: 10'4" 3.15 M Fuel Capacity (O/B): 302 Gal. 1,143 L Fuel...
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10m 32' 10"ft
Our comprehensive range of Cabin RIBs are used worldwide in some of the toughest environments. Our in-house facilities allow us to design a craft that is suitable for almost any application. These craft can be constructed in GRP or Aluminium and set up with inboard or outboard engines. Commercial...
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Sport-fishing boat : outboard center console boat (twin engine, T-Top) 318 CC EdgeWater Power Boats
9,7m 31' 10"ft
Where weight is critical for superior hull performance and fuel economy in a power boat, EdgeWater is proud to introduce an exciting new technology in hull construction...
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Rigid inflatable boat (passenger boat, outboard, twin engine, center console) RIBCRAFT 10.5 RIBCRAFT
10,5m 34' 5"ft
The Ribcraft 10.5 is a new addition to the Ribcraft fleet for 2006 and follows the Ribcraft concept of integrating strength, build quality and seaworthiness. She has a classic high sheer...
