Advent Aircraft Systems has announced that last week it received FAA Supplemental Type Certificate approval for its eABS GPS/digital anti-skid braking system for the Beechcraft King Air 300 series. The STC applies to aircraft equipped with Rockwell Collins Pro Line GPS 4000S or Garmin G1000 avionics. To complete certification, Advent used a Beechcraft-supplied King Air, flown by test pilots from the OEM.

Advent developed eABS to provide anti-skid braking for turbine-powered aircraft below a 20,000-lb MTOW, and the first application was the Eclipse EA500/550 light jet. Advent is now working on certification for the King Air 200 series, Pilatus PC-12/12NG and Beechcraft T-6 turboprop military trainer. The system is also being applied to an unnamed pair of trainers in development overseas.

Related to the eABS installation STC, Advent and Beechcraft are working on gaining a separate STC that will alter the POH (pilot operating handbook) for the eABS-equipped King Air 300 to reduce landing distances by approximately 5 percent and takeoff field length by 10 percent. Trials associated with the installation STC revealed a landing run reduction of around 400 ft for a heavyweight aircraft on a dry runway, as well as improved directional control and reduced tire wear in both dry and contaminated runway conditions.