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Unusual Machines (UMAC) announced it has signed a definitive agreement, effective June 12, to acquire Rotor Lab, an Australian developer and manufacturer of electric motors and propulsion systems ...

Unusual Machines boosts drone ambitions with Rotor Lab acquisition, while dropping Aloft deal over strategic misalignment.

Chinook Oldendorff, a ship with rotor sails designed to fight climate change, docked at Neptune Terminals on the North Vancouver waterfront.

Brake rotors should be 8 to 30 mm thick, or whatever your vehicle manufacturer recommends. Measure them with a brake rotor gauge or micrometer measuring tool.

Slotted rotors offer some of the same benefits as drilled rotors, including giving any debris somewhere to go, but unlike drilled rotors, you actually still see them used in racing.

BMW’s latest axial flux motor patent locks in magnets with a unique metal package and axial stop, aiming for better performance, safety, and long-term durability.

If your brake rotors are damaged or warped, your options are typically to buy new ones or have the old ones resurfaced. What is resurfacing and is it safe?

Sikorsky plans to fly a Group 3 design of its Rotor Blown Wing next month as the company targets international interest in the concept.