Eclipse 550 Receives Approval for Part 23 Auto Throttle and Anti-Skid Brake Systems


Photo © Eclipse Aerospace

Eclipse Aerospace announced on Thursday that the company has received a supplemental type certificate (STC) from the FAA for new auto throttle and anti-skid brake (ASB) systems for its Eclipse 550, a new-production very light jet that the company says is the "most fuel-efficient jet in the world."

The new auto throttle system was developed in conjunction with Innovative Solutions & Support, and this STC is the first of its kind for a jet certified under FAR Part 23. The new auto throttle system will allow pilots to input the intended airspeed into the autopilot system and the auto throttle system will automatically adjust to the correct power setting. To gain the STC, the auto throttle system had to conform to some Part 25 standards, including quick disengagement controls for each pilot.

The Anti-Skid Brake system, also approved with this STC, was designed by Advent Aerospace and is the only light aircraft ASB system that doesn't require a bulky hydraulic system. Advent Aerospace boasts that it's a lightweight, easy-to-install system that provides better control and improved stopping distance for very light jets.

The Anti-Skid Brake system can also be retrofitted to fit Eclipse 500 aircraft that have the IFMS Avionics package.

Since the Eclipse 550 is in the very light jet category, it can be certified under FAR Part 23, which is designed for light general aviation aircraft under 12,500 pounds. Since most general aviation aircraft fly under Part 91 and occasionally Part 135 operating rules, FAR Part 23 is less restrictive than FAR Part 25.

FAR Part 25 certification stadards apply to commercial operations including business jets. Aircraft certified under Part 25 are required to have certain standards of system redundancy and procedures in place that would allow for the safe continuation of flight in case a system fails.

According to a federal register docket regarding the Eclipse 500 auto throttle STC, FAR Part 23 does not "sufficiently address autothrottle technology and safety concerns" and in response, required special conditions to be met for approval of the Eclipse 500, and ultimately, the Eclipse 550.

The Eclipse 550 has two Pratt & Whitney Canada PW610F engines rated at 9oo pounds each, giving the lightweight aircraft enough power to cruise at 375 knots to 41,000 feet smoothly and efficiently. The Eclipse 550 starts $2.9 million.