Fri, Sep 09, 2011
Third Prototype Joins Flight Test Program
A third S-76D prototype helicopter has joined the aircraft's
certification flight test program, according to Sikorsky officials
in Florida. “D3,” the third prototype, recently flew
for the first time, officially taking its place as the program's
primary vehicle to certify the avionics and electrical systems. The
S-76D helicopter flight test program has achieved more than 500
flight hours to-date with its first two prototypes. All three
prototypes were assembled at the Sikorsky Global Helicopters
facility in Coatesville, PA.
S-76D Prototype 3 Sikorsky Photo
Certification testing on “D3” will begin in the 4th
quarter of 2011. In addition, flight test data for the
certification effort is being collected on “D1” and on
“D2.” An Indirect Lightning Test also was completed in
August at the Sikorsky Global Helicopters facility in Coatesville,
PA. This certification test simulates lightning strikes to the
aircraft to demonstrate that essential avionics and electrical
equipment are thoroughly protected. The aircraft continues to
demonstrate enhanced responsiveness and the power of its Pratt
& Whitney Canada PW210S engines.
“As the flight test program has grown, we have offered
customers the opportunity to fly in the aircraft,” said Tim
Fox, Senior Program Manager on the S-76 helicopter program.
“The S-76D helicopter offers a 14 percent increase in takeoff
power and an 8 percent fuel efficiency over its predecessor. It is
a difference the customers have noticed.”
The S-76D also will be fully certified for flight into known
icing – a first for the S-76 helicopter family. “We
continue to build on the outstanding legacy of safety and
performance of the S-76 product family as we mature the S-76D
through test. We are confident that the ‘D’ will be a
strong competitor in its class when it enters into service next
year,” Fox added.
The S-76D helicopter program officially launched in 2005 after
an 18-month period of study to identify the key attributes that
customers wanted in a new product. “Enhanced safety, avionics
and performance were the big requests,” Fox said.
Aircraft certification is planned for the first quarter of 2012,
with first deliveries also slated for 2012.
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