We’ve long-admired internal combustion engines for their power density pursuits. Extremely high horsepower-to-liter ratios for naturally aspirated cars like the Honda S2000, Ferrari 458 Speciale, or, ...

Blind calculation of horsepower for positioning motors can yield values that seem nonsensical to the uninitiated. It's common to see manufacturers of ac motors publish horsepower ratings for their ...

It’s plain to see that electric vehicles are the future, but there’s more to making that change happen than swapping out a gas motor for a battery-powered one — especially in aircraft. H3X is a ...

Brushless dc motors have the advantages of high reliability and smaller size, but the absence of brushes can pose challenges. One challenge is the requirement for electronic commutation and control, ...