Adams-Farwell 1907 Rotary

Like another builder of rotary engined road vehicles, Stephen Marius Balzer of New York, the Adams Company offered light gyrocopter engines which successfully powered experimental flying machines by Emile Berliner in 1909-1910 and J. Newton Williams in 1909. A modified 1907 Adams-Farwell engine powered three man-lifting experimental helicopters designed by Emile Berliner.