N51BA

N51BA is a Robinson Helicopter Company R66 operated by DAVIDSON BRENT V, LEWIS ACE E. SkyMeter has tracked 86 flights totalling 55 hours of airtime via ADS-B. The most frequent segment is KDVO to KDVO. Service window in our records spans 427 days. Of those flights, 4 (4.7%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Robinson Helicopter Company R66 has a maximum takeoff weight of 2,700 lb, light wake category.

About the Robinson Helicopter Company R66

The Robinson R66 is a five-seat turbine helicopter introduced in 2010, marking Robinson's first departure from piston power after decades of building the world's most popular light helicopters. Powered by a Rolls-Royce RR300 turboshaft engine producing 300 shaft horsepower, the R66 brought turbine reliability and hot-and-high performance to the light utility market at a price point well below traditional turbine competitors. Its design evolved directly from the piston-powered R44, sharing the same two-bladed teetering rotor system and familiar Robinson handling characteristics, but with significantly improved payload capability and reduced maintenance demands.

The R66 quickly found favor in aerial work roles where the R44's piston engine was marginal: agricultural spraying, pipeline patrol, heli-skiing, and high-altitude operations. Its 300-pound useful load advantage over the R44 and ability to maintain power at density altitudes where piston engines struggle made it particularly popular in mountainous regions and hot climates. The type's relatively low acquisition cost (roughly half that of a comparable Airbus H125) and Robinson's reputation for straightforward maintenance helped it capture significant market share in the owner-flown and small-operator segments.

With a cruise speed around 110 knots, service ceiling of 14,000 feet, and range exceeding 300 nautical miles, the R66 occupies a sweet spot between light piston helicopters and heavier turbine singles. Its Rolls-Royce engine, a variant of the powerplant used in the MD 500, offers 2,000-hour TBO intervals, and the airframe requires no life-limited components until 2,200 hours, reducing operating costs compared to older turbine designs. The R66 has become Robinson's flagship model, with over 1,000 delivered worldwide for missions ranging from cattle mustering in Australia to news gathering in urban markets.

SkyMeter has tracked flights across airframes and operators, with the largest observed operator.