Fewer than 5,000, or 27 percent, of U.S.-registered turbine-powered aircraft remain unequipped with ADS-B Out, according to FlightAware, whose May 2018 report released today shows that the number of registered aircraft that comply with the FAA’s rule rose slightly to 13,174, a 2 percent gain from April 2018. A year ago, 8,337 registered aircraft were not equipped with ADS-B Out.

The top five turbine aircraft with the highest rates of ADS-B compliance were the Cirrus SF50 Vision jet, 99 percent; Honda HA-420 HondaJet, 95 percent; Dassault Falcon 7X, 94 percent; Embraer Legacy 600/650, 91 percent; and Gulfstream G650, 90 percent. 

Aircraft models with the lowest equipage rates were led by the Gulfstream GIII, 39 percent; Learjet 55, 43 percent; Cessna 650 Citation III and Piaggio P.180 Avanti, 49 percent; and Learjet 31, 50 percent.

On January 1, 2020, the FAA rule takes effect and requires ADS-B Out equipment for aircraft to operate in designated airspace. It does not require the equipment for those aircraft that fly only in airspace that isn’t designated ADS-B.