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Welcome to Issue #43 of our web site update column. Thank you for your interest in Groen Brothers Aviation, Inc. (GBA) and our aircraft. You can be automatically notified of new issues of the Hawk's Nest, News Releases and web site updates by clicking on Contact Us”and following the easy directions. To review recent issues of hawk's nest, please click here on Archived.”We invite you to enjoy the many informational aspects of our comprehensive web site.

SPARROWHAWK II INTRODUCED

Our continuous efforts to improve our aircraft has resulted in the recent introduction of the SparrowHawk II Gyroplane, which features many improvements:

• A new cabin design shows little visual difference, but is lighter, stronger and offers additional headroom in an already spacious 46” wide area (4” wider than a Cessna 172).
• The seat mounting brackets have been redesigned, tilting the seats back an additional 5 degrees, providing a more comfortable seat position. The new design makes forward/aft adjustment easier and provides a greater range of seat adjustment.
• An improved fuel delivery system moves all fuel connections outside the cabin. This added safety feature also eliminates the possibility of fumes from lines and connections inside the cabin.
• A new single piece, welded main landing gear is stronger and easier to install than the earlier design.
• The new rudder control system requires less foot pressure, is tighter and more responsive and includes a pulley system that makes it much easier to install.
• A more powerful 80-amp alternator provides additional electrical power to allow the builder to add items such as landing and strobe lights, radios and additional navigation equipment.
• The pre-built tail has been a popular option for SparrowHawk builders and is now included in the standard kit.

For more information, please click here on SparrowHawk II.“”

GBA's recent US Defense Advanced Research Projects Agency (DARPA) contract to design a proof of concept high speed, long range, vertical takeoff and landing (VTOL) aircraft designed for use in Combat Search and Rescue (CSAR) roles has received favorable note in many major aviation publications. AviationWeek & Space Technology, Flight International, Aviation International News and Jane's Defence Industry Review have published information and images on the DARPA named “Heliplane” in response to our November 2005 News Release, which is accessible on our website. The GBA led team includes The Georgia Institute of Technology, Adam Aircraft Industries, Williams International, and a highly renowned team of aerospace consultants. Georgia Tech is a top U.S. graduate engineering, research university with premier aerospace engineering programs and a world famous rotary wing technology program. Adam Aircraft is highly respected for its innovative use of modern composite materials, engineering quality, and rapid prototyping processes that has allowed Adam to bring to market two new high-performance aircraft: the six passenger “center-line-twin” A500 and the A700 personal jet. Williams International has developed more than 40 different small

gas turbine engine systems for both military and commercial air vehicles, including the Adam A700 and many other modern “biz-jets.” For more information, please click here on “Heliplane” to read the related News Release.

American Autogyro is proud to have the SparrowHawk II chosen by Aero-News.Net (ANN) for inclusion in their “"Best of Breed" List: 2005's Planes of The Year – SportPlane. ANN annually selects the best aircraft for their list, which they acknowledge to be a difficult task, especially this year, indicating “the 2005 list was a BEAR to decide on.” ANN is an online Aviation Aerospace News Resource, providing informative and interesting daily updates. Visit them online at www.aero-news.net for more information.

The SparrowHawk Gyroplane was the focus of a very complimentary and informative article in the January issue of the Experimental Aviation Association's (EAA) flagship publication “Sport Aviation.” The seven page article “Dialing in Stability” details the safety and stability advantages of centerline thrust and includes a pilot report on the flight characteristics, performance and ease of operation of the aircraft. For more information on the EAA, we invite you to visit their website at www.eaa.org. The SparrowHawk has also graced the pages of KITPLANES magazine and General Aviation News in recent months.

AMERICAN AUTOGYRO SPARROWHAWK DEALER NEWS

Steve Waterman and his American Autogyro of Maine, LLC has been added to our Authorized Dealer list. This brings the total of SparrowHawk Dealers Worldwide to 31. We're very happy to have representation in New England and invite interested folks in the area to contact Steve at 207-594-4000 or SteveWaterman@mac.com.

Congratulations to Greg Williams, owner of American Autogyro of Sydney, Australia. Greg has completed his first SparrowHawk and is currently involved in flight testing the aircraft.

GBA/AMERICAN AUTOGYRO 2006 EVENT SCHEDULE

The 2006 event schedule is now listed on the American Autogyro web site. American Autogyro and/or our Authorized Dealers will be busy almost every month this year exhibiting at many EAA (Experimental Aviation Association), PRA (Popular Rotorcraft Association) and general aviation air shows across the country. We hope you will have the opportunity to visit with us and see the SparrowHawk at one or many of these regional, national and international events. Please click here on “2006”to access our event schedule.

GBA EXPANDS CORPORATE/MANUFACTURING FACILITY

Due to the additional staff and space requirements associated with our recent DARPA contract along with the relocation to Corporate Headquarters of our SparrowHawk manufacturing and shipping operations from our Flight Operations Facility, we have taken over the entire building at our Salt Lake City, Utah facility. This increases our available space by 60%, giving us a total of more than 38,000 square feet.

TAKING STOCK OF GBA

Groen Brothers Aviation, Inc. is a fully reporting, publicly traded corporation, listed on the OTC Bulletin Board as "GNBA" at any Stock Brokerage Company. Investment information including stock reports, Market Makers and SEC annual and quarterly reports are accessible through our GBA web site by clicking on Investment Information.”