Citation I (Model 500)- Capacity: 5–7 passengers
- Crew: Two pilots
- Cruise Speed: 345 knots (639 km/h)
- Range: 850 nautical miles (1,574 km)
- Engines: 2 × Pratt & Whitney Canada JT15D-1
- Takeoff Distance: 2,900 ft (884 m)
Citation I/SP (Model 501)- Capacity: 5–7 passengers
- Crew: Certified for single-pilot operations
- Cruise Speed: 345 knots (639 km/h)
- Range: 850 nautical miles (1,574 km)
- Engines: 2 × Pratt & Whitney Canada JT15D-1
- Takeoff Distance: 2,900 ft (884 m)
From a performance perspective, the two models are very similar. The key distinction is the Citation I/SP's single-pilot certification, a feature that continues to attract qualified owner-operators looking for additional flexibility.