Parker Aerospace’s Advanced Flight Controls Certified on Gulfstream G650 Business Jet

  Parker Aerospace’s Advanced Flight Controls Certified on Gulfstream G650
  Business Jet

The G650 features a state-of-the-art, fully digital, fly-by-wire flight
control system

Business Wire

IRVINE, Calif. -- October 29, 2012

The fly-by-wire actuation system developed by Parker Aerospace, a business
segment of Parker Hannifin Corporation (NYSE: PH), the global leader in motion
and control technologies, has been certified as part of the type certificate
Gulfstream received from the Federal Aviation Administration (FAA) for its
Gulfstream G650 business jet.

Gulfstream Aerospace Corporation’s ultra-large-cabin, ultra-long-range G650
received FAA certification on September 7, 2012. Gulfstream and the Parker
Aerospace Control Systems Division have been working together since the
program's launch to design and certify the G650’s fully digital, fly-by-wire
flight control system, which includes the world’s first three-axis business
aircraft electric backup hydrostatic actuation (EBHA) subsystem.

EBHAs are electrically controlled actuators that are primarily hydraulically
powered by one of the G650’s two hydraulic systems, with electric power as a
backup. The EBHA subsystem is self-contained, operating in the event of
certain failure conditions, essentially eliminating the need for a third
hydraulic system found in traditional aircraft system architectures. These
actuators provide enhanced aircraft safety and flight control availability
because of the different power sources.

Parker provides EBHAs for all the G650’s primary control surfaces, including
the elevator, rudder, aileron, and outboard multi-function spoiler. In
addition, Parker provides electrohydraulic servoactuators (EHSAs) for all of
the G650’s primary control surfaces as well as remote electronics units, motor
control electronics, and tubing assemblies. The flight control actuators are
manufactured at the Parker Aerospace Control Systems Division facility in
Ogden, Utah, with the electronics manufactured at the division’s headquarters
in Irvine, California.

The G650’s fly-by-wire flight control system delivers many benefits, including
flight-envelope protection, passenger comfort, increased redundancy, and
reduced maintenance. As noted by Gulfstream in a recent statement, “the system
is the result of extensive testing, leading to a redundant fly-by-wire system
that exceeds certification requirements.”

Parker Aerospace helped make business aviation history when the G650 completed
flight with EBHA mode on December 21, 2010. It became the first business
aircraft to control flight using an electrically powered, fly-by-wire, EBHA
backup flight control actuation system.

“Parker is thrilled to have its components on the now-certified Gulfstream
G650,” said Parker Aerospace Vice President of Operations Greg Crowe. “We are
proud to be a part of this game-changing aircraft and showing what our
advanced, fly-by-wire flight controls can achieve.”

When flight with EBHA mode was completed, Gulfstream Senior Vice President of
Programs, Engineering, and Test Pres Henne said, "The system performed
flawlessly. There was no difference in handling qualities between the
electrically and hydraulically powered modes.”

About Parker Aerospace. Parker Aerospace is a global leader in the research,
design, manufacture, and service of flight control, hydraulic, fuel and
inerting, fluid conveyance, thermal management, and engine systems and
components for aerospace and other high-technology markets. It is an operating
segment of Parker Hannifin Corporation.

About Parker Hannifin. With annual sales exceeding $13 billion in fiscal year
2012, Parker Hannifin is the world's leading diversified manufacturer of
motion and control technologies and systems, providing precision-engineered
solutions for a wide variety of mobile, industrial and aerospace markets. The
company employs approximately 60,000 people in 48 countries around the world.
Parker has increased its annual dividends paid to shareholders for 56
consecutive years, among the top five longest-running dividend-increase
records in the S&P 500 index. For more information, visit the company's web
site at, or its investor information web site at


Parker Aerospace
Alison Dittmeier, Media Relations & Communications Manager
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