Ships and submarines fight wars above the waves and below, but which of those two is faster? We break down the differences in ...

where a very slow propeller speed is needed. This engine has a normal full-power speed of 78 rpm and of 54 rpm at the economy rating E4. This will be the first production engine to incorporate VEC ...

Attorney Erica Fuller said the Conservation Law Foundation and other groups are asking to intervene, because the plaintiffs are also seeking a judgement declaring that the government lacked the ...

The findings highlight the role of maintaining smooth propeller surfaces in optimising efficiency and reducing emissions. Propspeed’s product range includes Propspeed for running gear and underwater ...

The simulation conditions are set as follows: the incoming flow velocity is 30.48 m/s in the axial direction of the duct, and the propeller speed is 8000 rpm. 3.1. Influence of the Blade-Duct Gap on ...

Propspeed, a company specialising in underwater foul-release coatings, has signed an agreement with Luka Marine Murter to act as its single-entry partner for Croatia and Slovenia. The collaboration ...

Our experts review more than 1,500 technology products each year. Our mega-guide, updated monthly, scopes out the very best cost-conscious products across 15 key categories.