Boats are propelled forward by various power sources, such as human power, wind power, and internal combustion engines. Nowadays, even electric boats are coming onto the scene. Propulsion for ...

Your outboard needs a propeller—maybe two if you are smart and carry a spare. There are literally dozens of prop options for most outboards, so start here. Outboard props come in three flavors: ...

Propellers affect more than speed and fuel economy. In fact, the more outboards there are hanging on the transom, the more propeller selection dictates a boat’s ride, minimum planing speed, and ...

Consider, if you will, the humble motorboat propeller. It is small - usually 3 to 20 pounds with a 9 1/2- to 16-inch diameter - and has a simple job. Its task is to keep its head underwater and turn, ...

Gift Article 10 Remaining As a subscriber, you have 10 articles to gift each month. Gifting allows recipients to access the article for free. A Shelby Township-based boat propeller startup has put $32 ...

Watch as we test 12 ultra-efficient electric boat propellers to find out which offers the best speed, efficiency, and performance on the water. Perfect for electric boat enthusiasts, engineers, and ...

WILLIAMSBURG, Va., April 19 (UPI) -- U.S. researchers say they've confirmed turbulence from boat propellers can kill large amounts of copepods, small crustaceans important in marine food chains. The ...

A new study shows that turbulence from boat propellers can and does kill large numbers of copepods -- tiny crustaceans that are an important part of marine food webs. A new study by researchers at the ...