Ground test runs started last month on the 4,900-pound-thrust TFE731-50, Honeywell’s newest business jet engine. The engine, featuring integrated nacelle and thrust-reverser systems, produced more than 5,000 pounds of thrust in a test cell on its first run, the company said. The engine is scheduled to begin flight testing on Honeywell’s Falcon 20 this summer. Announced at last year’s NBAA Convention, Honeywell is targeting certification for next year and is in discussions with several business aircraft manufacturers for applications of the new engine.