Cessna 1sp (C501)
i
ICAO C501 Small

Cessna 1sp

Twin Jet· 208 globally registered

The Cessna Citation I, introduced in 1972 as the Citation 500, was the production version of the revolutionary Citation prototype that launched the light business jet category. Cessna's gamble on a straight-wing, modestly-powered twin-jet designed for owner-pilots rather than corporate flight departments proved transformative. The Citation became the best-selling business jet family in history, with over 8,000 delivered across all variants. The original Citation I prioritized simplicity and economy over raw speed, cruising at 340 knots with a range of 1,300 nautical miles, making it accessible to operators transitioning from piston twins. Powered by two Pratt & Whitney JT15D-1A turbofans producing 2,200 pounds of thrust each, the Citation I could operate from runways as short as 3,000 feet and climb directly to FL410, capabilities that opened thousands of airports to jet traffic for the first time. Its docile handling characteristics and relatively low operating costs made it a favorite of small corporations, air ambulance operators, and freight carriers. The type remained in production until 1985, with 689 built, and many still fly today in cargo, charter, and private roles. The Citation I established design principles (high wings for cabin space, straight wings for short-field performance, and twin Williams or P&W engines in the 2,000-3,000 pound thrust class) that Cessna refined through the Citation II, Bravo, CJ series, and beyond. Its success proved that a market existed below the traditional midsize jet segment, a lesson that reshaped the entire business aviation industry. SkyMeter has tracked 188 flights across 54 airframes and 52 operators, with N403AA LLC the largest observed operator.

ACTIVE AIRFRAMES
54
last 7 days
🏢
OPERATORS
52
unique airlines
📊
FLIGHTS
188
tracked
AVG DURATION
1h 16m
per flight
INCIDENT RATE
3.7%
7 flagged

Safety in context

The incident rate counts flights with ANY safety event detected by SkyMeter: go-arounds (a routine response, not a failure), unstable-approach gate flags (advisory thresholds), rejected takeoffs (the system working as designed), and runway events. It is NOT an accident rate or fatality rate. For accident statistics, refer to the NTSB Aviation Accident Database (USA) or the Aviation Safety Network. See methodology for what each event type measures.

Performance

Speed envelope & approach

Vref
107 kt
Vref range
Vmo
305 kt
Mmo
0.72
Vs1 (clean)
86 kt
Vs0 (landing)
79 kt
Vfe
165 kt
Approach category
B

Dimensions

Airframe geometry

Wingspan
47 ft
Length
44 ft
Tail height
14 ft
Wheelbase
18 ft
Gear width
13 ft
Wake category
Light

Weight & identification

Operating limits

MTOW
11,850 lb
MALW
11,350 lb
Manufacturer model
Cessna 1SP
FAA designator
C501
Registered
208

Safety profile

Flagged flights · last 7 days

Family

Related variants

1

Recent incidents

Flagged flights of C501

20
8/13/2026
2h 33m
△ Low approach-stability score
8/13/2026
31m
△ Low approach-stability score
8/11/2026
2h 22m
△ Low approach-stability score
8/10/2026
1h 15m
△ Low approach-stability score
8/8/2026
1h 5m
△ Low approach-stability score
8/7/2026
1h 27m
△ Low approach-stability score
8/6/2026
52m
△ Low approach-stability score
8/6/2026
33m
△ Low approach-stability score
8/6/2026
36m
△ Low approach-stability score
8/5/2026
1h 57m
△ Low approach-stability score

Recent flights

Real flights of C501 · airborne ≥ 20 min

30
8/13/2026
56m
No alerts
8/13/2026
50m
No alerts
8/13/2026
55m
No alerts
8/13/2026
3h 14m
No alerts
8/13/2026
24m
No alerts
8/13/2026
3h 15m
No alerts
8/13/2026
30m
No alerts
8/13/2026
52m
No alerts
8/13/2026
58m
No alerts
8/13/2026
1h 40m
No alerts
8/13/2026
1h 33m
No alerts
8/13/2026
44m
No alerts
8/13/2026
54m
No alerts
8/13/2026
1h 24m
No alerts
8/13/2026
4h 27m
No alerts
8/13/2026
2h 10m
No alerts
8/13/2026
2h 38m
No alerts
8/13/2026
2h 33m
△ Low approach-stability score
8/13/2026
35m
No alerts
8/13/2026
47m
No alerts
8/13/2026
36m
No alerts
8/13/2026
31m
△ Low approach-stability score
8/13/2026
1h 4m
No alerts
8/12/2026
24m
No alerts
8/12/2026
48m
No alerts
8/12/2026
1h 19m
No alerts
8/12/2026
1h 53m
No alerts
8/12/2026
1h 27m
No alerts
8/12/2026
1h 20m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)