The maritime propulsion resource

Marine propulsion, in focus.

News, companies and products across marine engines, propulsors, electrification and drivetrain technology.

Directory

Propulsion companies

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Petrol outboards

Tohatsu

Japan 3 products

Tokyo-based outboard maker offering 2.5-250 hp four-stroke, two-stroke and electric outboards, and a longtime OEM supplier to other brands.

Licensee engine builders

STX Engine

South Korea 2 products

Korean builder of Everllence-licensed marine engines and defence engines, based in Changwon and majority-owned by UAMCO.

Rigid wing sails

BAR Technologies

United Kingdom 1 product

Portsmouth-based marine engineering firm that designs WindWings rigid wing sails for bulkers, tankers and other large merchant ships.

Directory

Products

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R.W. Fernstrum & Company

GRIDCOOLER Multi-Pass Keel Cooler

Keel cooler (multi-pass configuration)

Multi-pass GRIDCOOLER arrangement routing coolant through several tube passes; offered alongside the standard single-pass design.

R.W. Fernstrum & Company

GRIDCOOLER Keel Cooler – 90/10 Copper-Nickel

Keel cooler (external hull-mounted)

Hull-mounted rectangular-tube keel cooler in heavy-walled 90/10 CuNi with one-piece header, silver-brazed; enhanced interior tubing optional.