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What are the advantages of an outboard motor?
Outboard motors are more accessible and require less maintenance than inboards. They don’t need to be winterized, and you don’t have to raise the boat to access the engine. Generally, outboard motors are easier and cheaper to maintain.
Why do boats have multiple outboards?
Compared with all three other propulsion systems that basically have an engine in the boat, using multiple outboards makes the boat faster because of a beneficial power-to-weight ratio and, in most cases, the outboards are more fuel-efficient.
What does a marine engineer do on a ship?
A marine engineer is someone who designs, builds, tests and repairs ships, boats, underwater craft, offshore platforms, and drilling equipment. They often work closely with naval architects to design everything from small yachts and fishing boats to submarines and aircraft carriers.
What is the advantage of twin outboards?
Less stress. The engines in a twin-engine setup are subject to less stress than a single-engine because each one is only pulling half its weight in powering the boat. At high speeds, a single-engine may be running at its maximum. At the same speed, twin-engines will be cruising along smoothly and more comfortably.
Why do boats have 3 outboards?
Going from three to four outboards on the same boat usually increases speed, but not proportionately to the increase in horsepower. Even though you boost the power by a third, the weight and drag of the fourth outboard prevents a corresponding increase in velocity. … Its lower unit also generates additional drag.
Why are Yamaha outboards so popular?
With unmatched performance, legendary reliability, incredible power, industry-leading innovation and unique customer satisfaction Yamaha outboards are outstanding.
Are twin outboards better than single?
As with top speed, acceleration times can vary, but generally speaking, twin outboards should achieve a quicker hole shot than a single outboard of the same horsepower.
How dangerous is marine engineering?
Simply put, maritime jobs are dangerous. If you’re considering a career in the maritime industry, you’ll have to face the fact that the slightest mistake could cause you significant injury. While it’s true that a well-trained crew is less likely to make critical safety errors, accidents can and do happen.
Who is a famous marine engineer?
Konrad Kyeser was a renowned military engineer and lived during the 14th and 15th Centuries.
Do twin outboards use more fuel?
Fuel Economy Yes, at cruising speeds, the numbers are close, but the single wins, even though it’s working harder than the twins. (Remember that two lower units create more drag in the water than one.)
Why should a boats gas tank never be completely filled?
It’s important to never fill the tank of your boat beyond 90% full. This leaves room for gas to expand and avoids the potential for overflow. Ensure that all air vents and valves to the gas tank are open. After you’re done fueling, tightly replace the gas cap.
Who makes the fastest outboard motor?
Evinrude V8 is the world’s fastest outboard EVER- 176.556mph average – YouTube | Outboard, Hydroplane racing, Hydroplane.
Which is better 2 stroke or 4 stroke outboard motor?
Because a 2-stroke engine only uses two piston strokes to generate one revolution of crankshaft power, it generates much more power than a 4-stroke engine of the same horsepower. This gives 2-strokes better top-end speed and acceleration. 2-stroke outboards are ideal for use on smaller boats.
Is a 4 stroke boat motor better than a 2 stroke?
Fuel economy and speed are comparable between two-strokes and four-strokes. Two-strokes tend to weigh less but can accelerate faster. Four-strokes tend to be quieter and have more torque than two-stroke outboards. Both technologies are solid and highly evolved.
Are Honda outboards better than Yamaha?
Typically, Yamaha tends to offer engines with slightly more horsepower than Honda’s. So, while the Yamaha has slightly more power, both the Honda outboard and the Yamaha outboard feature pretty powerful engines. That said, power is not the only factor to consider when purchasing an engine.