Will Participate In Citation Engine Modification Programs

Clifford Development announced the appointment of Central Flying Service as a service center for the Company's Citation II and Citation SII re-engining programs utilizing Williams International FJ44-3A engines. Central Flying Service, headquartered in Little Rock, Arkansas, is a family-owned aircraft maintenance, aircraft sales and charter company. Founded in 1939, Central Flying Service employs 250 people and operates from a comprehensive 500,000+ sq. ft. facility. Maintenance services include airframe and engine maintenance, paint, interior and avionics work for primarily Citations, Hawkers and Beechcraft products. The company has been a Beechcraft dealer for 60 years.

"We are pleased to add Central Flying Service as a Clifford Development Service Center. This firm exemplifies the rare combination of customer care and technical expertise that corporate aircraft operators appreciate. In addition to our engine modifications, Central Flying Service can provide virtually any support or modification that a Citation operator might need," said Jim Clifford.

Two parallel Supplemental Type Certificate (STC) programs are underway at Clifford Development to re-engine both the Citation II and the Citation SII.

The Citation II certification airplane is currently undergoing flight tests in Mojave, California. Federal Aviation Administration (FAA) flight tests are programmed to conclude in early 2008. Initial flight test results for the Citation II support the original performance estimates for the Williams engine conversion including a long range cruise speed increase (+21 percent) and an NBAA IFR range improvement (+29 percent).

The Citation SII certification airplane is currently being modified with the Williams International FJ44-3A engines. First engine runs are anticipated in late December and an abbreviated flight test program is scheduled for early 2008. Issuance of STCs is anticipated in early 2008 for the modification of both airplanes.

Central Flying Service will provide complete sales, installation and service support for Citation II and SII owners who purchase the Clifford engine STC. Service centers receive technical support and complete installation kits from Clifford Development. Installation time for new engines is estimated at six weeks.

The Citation II and S/II engine conversions are priced at $2,150,000 and $2,275,000 for 2008 installations. The price includes a credit for the original engines.

FMI: www.clifforddevelopmentgroup.com