EL SEGUNDO, Calif., Dec. 1, 2021 (Phase Four PR) — Phase Four, the creator of the radio-frequency thruster for satellite propulsion, announced today that its second generation thruster offers significant performance improvements over its first generation thruster.  The new thruster, which will be at the core of the Maxwell Block 2 engine, has demonstrated more than 13 mN of thrust and over 700 s of specific impulse (Isp) at 500 Watts of input power.  This represents an overall 85%+ performance improvement from the company’s first generation thruster.