Home' Asian Aviation : AAV February 2011 Contents Business Aviation News
Gulfstream Aerospace test pilots and engineers
made business-aviation history in December,
flying the Gulfstream G650 test aircraft for the
first time using only an electrically powered, fly-
by-wire backup flight-control actuation system.
The 21 December test flight involved
Gulfstream's aircraft serial number 6001 and
lasted three hours and 33 minutes. Test pilots
Jake Howard and Gary Freeman, along with
flight-test engineers Bill Osborne and Nathaniel
Rutland evaluated the aircraft's fly-by-wire
system in electric backup actuation mode for 2
hours and 20 minutes of the flight, performing
five landings with the backup system engaged.
"The system performed flawlessly," says Pres
Henne, Gulfstream's senior vice-president
for programmes, engineering and test.
"There was no difference in handling
qualities between the electrically and
hydraulically powered modes."
"It flew so well that unless pilots were
told they were in backup actuation
mode I don't think they would notice,"
Typically, fly-by-wire aircraft use a third
hydraulic system to provide redundancy
in the event of a dual hydraulic
system failure. However, Gulfstream's
fly-by-wire architecture uses Parker
Hannifin-made electric backup hydraulic
actuators (EBHA) -- electrically controlled
actuators that are primarily hydraulically
powered, but offer electric power as a backup.
A self-contained hydraulic reservoir and motor
pump allow full operation should hydraulic loss
The G650 has an EBHA at every primary
control surface -- the elevators, rudder and
ailerons -- as well as the outboard spoilers.
These provide enhanced safety and aircraft
availability because of the two different power
sources. The self-contained actuators also offer
an advantage under certain failure scenarios,
such as a rotor burst, that could damage
hydraulic systems. -- Andrzej Jeziorski
G650 flies with electric control system
NEWS IN BRIEF
CESSNA AIRCRAFT has delivered three Citation
Sovereign business jets to the Flight Inspection
Centre of the Civil Aviation Administration
of China (CAAC). The CAAC arm is
responsible for inspecting navigation, radar,
communication and navigational aid systems,
as well as flight procedures at civil airports
and in airways in the Chinese mainland,
Hong Kong and Macau. The Cessna jets will
be used for calibration of navigational aid
systems serving Chinese airports. The aircraft
have been certified to operate from airports at
altitudes of up to 15,000ft and with required
navigation performance accuracy of RNP .3.
The CAAC Flight Inspection Centre is a long-
established Cessna customer, having previously
purchased 11 Citations, including Citation VI,
Citation X and Citation XLS aircraft. Cessna
also announced an additional sales success in
China, with the delivery of a CJ3 business jet
to an unidentified customer in Hong Kong.
PIPER AIRCRAFT has terminated a year-old
licensing agreement with Moravia-based
light sport aircraft manufacturer Czech Sport
Aircraft (CSA). Piper Chief Executive Geoffrey
Berger says the company determined that it is
in its "best long-term interests to discontinue
the business relationship". The executive says
the two companies have divergent approaches
and views on the market. Piper has been
selling the two-seat PiperSport aircraft -- a
variant of CSA's SportCruiser since April 2010.
The company sold 54 of the aircraft, priced at
US$120,000 to US$140,000.
Dubai-based charter and aircraft management
company Gama Aviation FZC has become
the first operator to register a Bombardier
Challenger 850 business jet in the United
Arab Emirates (UAE).
The UAE General Civil Aviation Authority
(GCAA) issued its certificate of airworthiness
(CofA) for the aircraft type on 16 December.
"We are very excited by the addition of this
Challenger 850 jet to our growing fleet," said
Dave Edwards, Gama's managing director.
"The first CofA for this type of business
jet in the UAE demonstrates the growing
interest in business aviation in this region
and a crowning achievement for our newly
launched Middle Eastern division."
Gama Group is an international business-
aviation services organisation. Gama Aviation
FZC has an operating base at Sharjah
International Airport with offices in the Dubai
Airport Freezone. Established in the United
Kingdom in 1983 by Marwan Abdel Khalek
and Stephen Wright, the Gama Group has
its headquarters at Farnborough in the UK,
with bases across Europe, the Americas and
the Middle East. The company operates
more than 75 business aircraft, including two
Bombardier Learjet 45s, two Learjet 60s, two
Challenger 604s and two Challenger 605s.
Gama Group's companies and affiliates hold
European, US and UAE charter certificates, as
well as maintenance, design and manufacture
approval. Services offered include charter,
management, fixed-base operations (FBO),
maintenance, valet services and aviation
Gama Aviation FZC obtained its UAE
GCAA Air Operator's Certificate in February
2010 and now operates five business jets
in the region. It is also constructing a new
hangar and FBO at Sharjah International
"The certification of Gama Group's
Challenger 850 aircraft is an example of
the increasing diversity of the market for
business aircraft in the Middle East," says
Bob Horner, Bombardier Business Aircraft's
senior vice-president of sales. "The Challenger
850 jet has established a unique niche,
offering unparalleled flexibility in customized
configurations for operators worldwide. We
are confident that this formidable aircraft will
enjoy even more success in this region." --
Gama registers UAE's first Challenger 850
Gulfstream says the back-up electric flight-control system
offered identical handling to the main, hydraulic system.
16 AsianAviation | FEBRUARY 2011
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