----Pratt + Whitney
Canada Corp.
Furthermore, our advanced technologies enable us to deliver this
impressive performance in a compact, light weight package creating a
step change improvement in power-to-weight ratio over current
engines," noted Mr."

PW210 operators will enjoy the full backing of P+WC's extensive
Global Customer Support Network, ranked No.

This category is NOT for placing your classified advertisement .

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"

The PW210 demonstrates P+WC's firm commitment to developing
innovative products designed and built to satisfy the customer's ever
growing needs and expectations.

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Pratt + Whitney Canada Continues Growth in World Helicopter Market with Launch of New PW210 Turboshaft Engine

"PW200 engines were selected to
power more than 75 per cent of new light twin helicopters ordered in
2004 and we intend to build our future growth on this great platform.

"For the last five consecutive years, P+WC has ranked 'Number One'
for helicopter engine support in a trade magazine's operator survey,"
Mr . Applications for this technology include land and
sea-based heavy-lift military freighters, an aerial fire-fighting vehicle
and a runway-independent commercial airliner.

engined aircrafts

The PW210 will continue the heritage
of the company's extensive experience in successfully bringing
products to market ."

About Groen Brothers Aviation, Inc.

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P+WC's operations and service network span the globe.

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"We look forward to this new opportunity to work with Sikorsky and are
delighted to be a part of this exciting new helicopter program."

"The PW210 engine will build on the remarkable success of the
PW200 engine family, the most popular turboshaft engine in the new
light twin helicopter market ," said Keyvan Fard, Vice President,
Regional Airline + Turboshaft Engines."

The PW210 engine will benefit from P+WC's extensive experience and
diverse portfolio of engines in the airline, business , general
aviation, military and helicopter markets by leveraging lessons
learned and the latest technology demonstrated in such new models as
the PW600 engine family for the light jet market.

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"We are extremely pleased to have been
selected for this program," said Alain M. has developed the first commercially viable
modern gyroplane, the "Hawk 4.

The Company is also offering its proprietary technology to develop large
compound rotorcraft capable of vertical take-off with ultra -heavy payloads
and substantial range.

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The PW210S is scheduled for
certification in mid -2008.
P+WC is a subsidiary of United Technologies Corporation (NYSE:UTX), a
high-technology company based in Hartford, Connecticut.

As a result of this agreement, Jay Groen, Chairman of GBA, and Robin
Wilson, Executive VP & Head of Business Development, traveled to China in
March to meet with government officials and aerospace executives.

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Business Editors/Transportation Writers

ANAHEIM, Calif. P+WC's exceptional aftermarket support
includes an impressive world-wide network of field support
representatives, factory-based technical support, 24-hour help line
for spares and logistics support, dedicated customer training centers,
and a network of factory-owned service centers, as well as authorized
independent service facilities. Actual
future results and trends may differ materially depending on a variety of
factors, including the Company's successful execution of internal
performance plans; product performance; risks associated with regulatory
certifications of the Company's commercial aircraft by U.

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(P+WC) is launching a new generation turboshaft engine,
the PW210, offering best-in-class performance in the 1,000 SHP class
with unmatched reliability, durability and operating economics for
large single and intermediate/medium twin helicopters." The gyroplane is a hybrid aircraft with
the low operating cost of an airplane and the off-runway operating
capability of a helicopter.gbagyros.

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(GBA)
(OTC BB: GNBA) today announced that in exchange for a minimum equity
investment of $1 million, GBA has granted a Chinese investment group a
six month period in which to bring to the Company a funding/partnering
package sufficient to fund the completion of the Hawk 4 Gyroplane program
up through FAA Certification and production.S.

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Fard. In these meetings , GBA
made presentations covering the application of GBA's gyroplane and gyrodyne
technologies to China's commercial needs. We are pleased at this progress.com. and foreign
governments; other regulatory uncertainties; collective bargaining labor
disputes; performance issues with key suppliers and subcontractors;
governmental export and import policies; and the ability to adequately
finance operations to the date of FAA certification, manufacturing, and
delivery of products.

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Bellemare "This enables us to produce engines at full maturity level
of reliability at entry into service.

PRESS RELEASE Groen Brothers Aviation Inc. Grants Six Month Funding Window to Chinese Investment Group

Through its wholly owned subsidiary, Groen
Brothers Aviation USA, Inc.

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"

P+WC, based in Longueuil, Quebec, is a world leader in aviation
engines powering business, general aviation and regional aircraft, and
helicopters.

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In addition, during this same
period, the Agreement grants this investment group the right to bring a
funding/partnering package for the development of larger commercial GBA
GyroLiner gyrodynes of Groen Brothers Aviation's design. These
high-level meetings were arranged by this investment group, executives of
which accompanied GBA during the twelve-day visit. Further information about
the Company, its products, and individual members of "GBA Team Hawk" is
available on the Company's web site at: www.

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"P+WC has a proven track record in the processes
of engine design, development, aircraft integration, certification,
maturity demonstration and overall program management," noted Mr. The Company continues to develop a nationwide
dealership network for the sale of these products.

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"The result is a 'game-changing', new
generation engine for large single and intermediate/medium twin
helicopters, and will create a significant opportunity for
top-of-the-line light-twins to achieve better performance. The company also offers advanced engines for industrial
applications.
Groen Brothers Aviation, Inc. The presentations were well
received and resulted in GBA being invited back to China to discuss
specific proposals for joint ventures or cooperation.
Forward-looking information is subject to risk and uncertainty. Certain
statements in this Press Release may contain "forward-looking" information
that involves risk and uncertainty , including but not limited to
projections for deliveries, sales, and other trend projections.

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Fard said.

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1 in the industry for
helicopter engine support.

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Bellemare, President, P+WC. "This reflects our continuous dedication to excellence
in all that we do and we intend to grow this legacy with the PW210. "With
China's burgeoning economy requiring rapid development of its
transportation infrastructure, these types of safe, economical, high
performance Ultra-Short and Vertical Takeoff and Landing (USTOL & VTOL)
aircraft can be very important in helping to solve their transportation
needs.

Groen Brothers Aviation, Inc., the Company has also developed and is
currently selling a smaller kit gyroplane, the "SparrowHawk," to meet the
growing demands of the home-built gyroplane kit market, and to provide a
safe, economical airborne patrol vehicle for law enforcement and other
government applications.

Sites which offer an aviation online classified ad service.

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"Incorporating the latest advances in material and compressor
technology, as well as a dual channel, full authority digital
electronic control system (FADEC), the PW210 will set a new standard
in performance and ease of operation, producing 10 to 20 per cent more
power while burning less fuel than today's engines in its class.

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The first model of the new generation, the PW210S, has been
selected by Sikorsky to power its next generation S-76D helicopter
targeting corporate, offshore oil, hospital, airline and government
operators around the world.

Safe Harbor Statement/Forward-Looking Information Disclaimer

Certain statements in this news release are forward-looking within the
meaning of Section 27A of the Securities Act of 1933, as amended, and
Section 21E of the Securities Exchange Act of 1934, as amended.

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"There can be a very large market for our products in China, from the
SparrowHawk size gyroplanes, to the Hawk 4 Gyroplane and its variants, to
the varying sizes of tip-jet powered gyrodynes in commuter airline and
transport category aircraft," said David Groen , President & CEO.

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