NBAA Convention News

Hartzell Alternator Selected for Cirrus Jet

 - October 21, 2013, 11:50 AM

Hartzell Engine Technologies (Booth No. C7630) has been selected to supply the alternator for the $1.96 million Cirrus Aircraft SF50 Vision single-engine personal jet. Hartzell will provide its 140-amp ES-6904 model for the aircraft.

Hartzell Engine president Mike Disbrow said the company worked closely with Cirrus and engine maker Williams International “to meet the electrical power requirements of the SF50’s systems and advanced avionics.” Williams is providing its 1,800-pound thrust FJ33-5A engine for the jet.

Hartzell said the new alternator is approximately eight pounds lighter than a starter-generator with comparable electrical output; has a low-current slip ring and a quick access mounting clamp that reduce maintenance costs; is equipped with an integrated cooling fan; and is designed with an isolated current return path to protect engine bearings.

This past summer, Cirrus revealed more details of the revised SF50 jet including design changes–such as a longer nose and a higher loft compared to the non-conforming prototype that it has been flying since 2008.

A conforming aircraft is expected to make its first flight next year and Cirrus is aiming for certification in 2015. Range is estimated at 1,000 nm at 300 knots; and 1,200 nm at 210 knots. The five-plus-two occupant layout is retained but options such as weather radar, a “relief station” and upgraded leathers have beenadded.

Cirrus is already beginning to gear up for production by adding factory robotics and a fuselage lay-up mold for the all-composite aircraft. The company has received deposits for more than 500 SF50s so far.

Hartzell currently provides the alternator for the Cirrus SR22 single engine piston aircraft. Hartzell Engine Technologies is the sister company of Hartzell Propeller and provides cabin heating systems, turbochargers, alternators and fuel pumps.