The new Model 550 Citation II first flew on January 31 1977 and FAA certification for two pilot operation was awarded in March 1978. The II/SP is the single pilot version.

Performance

 Cruising speed 746km/h (403kt). Initial rate of climb 3040ft/min. Range with two crew, four passengers and reserves 3223km (1739nm). Range with max fuel 3700km (1998nm).

Weights

 Empty equipped 3655kg (8060lb), max takeoff 6850kg (15,100lb)

Power

 Two 11.1kN (2500lb) Pratt & Whitney Canada JT15D4Bs turbofans.

Capacity

 Flightcrew of two pilots. Main cabin can be optionally configured to seat 10, but standard interior layout for six. Can be configured as an air ambulance with one or two stretchers and up to four medical attendants