BREGUET, LOUIS CHARLES ), French en gineer, a descendant of the famous watchmaker, Abraham Louis Breguet, was born Jan. 2 188o, in Paris. He received his edu cation at the Lycees Condorcet and Carnot, and graduated in science. He was from the outset of his career a prominent mem ber of the engineering firm that bears his family name, and eventually became head engineer of its electric service. The Maison Breguet, which came to the front in French aeronautical construction, provided him with ample ground for research ; he published a quantity of reports on aerodynamics, on the energy converted by propellers in motion and on the rise of aircraft from the ground. He studied and equipped in 19og the first helicopter which was able to rise perpendicularly carrying a passenger.