Maintenance and Modifications
Citation II Williams FJ44-3 re-engine STC in the works
Clifford Development, a Toledo, Ohio start-up, has launched a program to re-engine Citation IIs with 3,000-pound-thrust Williams International FJ44-3 engin

Clifford Development, a Toledo, Ohio start-up, has launched a program to re-engine Citation IIs with 3,000-pound-thrust Williams International FJ44-3 engines with fadec. The company has acquired a Citation II as a test aircraft and expects to obtain an STC within 12 months.

According to CEO Jim Clifford, the re-engined Citation II will have “significant” performance improvements, including a 21-percent long-range cruise speed increase, a range increase of 29 percent, a 34-percent improvement in single-engine climb rate and a fuel efficiency improvement of 20 percent.

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