Bell Helicopter unveiled its Model 525 Relentless at Heli Expo in Dallas. The largest helicopter ever developed by Bell, it bears a family resemblance to the Bell 429 but weighs in at more than 19,000 lb. Bell Helicopter President John Garrison says the company is “on a mission” to revitalize its commercial product line. A customer advisory panel helped Bell finalize the design. Equipped with the Garmin 5000 avionics system, the 525 has a BAE Systems-developed fly-by-wire flight control ...


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