Douglas Dc 9-10 (DC91)
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ICAO DC91 Large

Douglas Dc 9-10

Twin Jet· 14 globally registered

The McDonnell Douglas DC-9-10 was the original short-fuselage variant of the DC-9 family, introduced in 1965 as America's answer to the BAC One-Eleven and the emerging short-haul jet market. With seating for 80-90 passengers and a fuselage length of just 104 feet, the -10 was purpose-built for high-frequency operations into smaller airports with shorter runways, featuring aft-mounted Pratt & Whitney JT8D turbofans that kept the wing clean and allowed a low-slung airframe ideal for air-stair boarding. Delta Air Lines launched the type into service in December 1965, and the design proved so successful that it spawned a family of stretched variants (-30, -40, -50) that would dominate U.S. domestic routes for three decades. The DC-9-10's performance envelope was impressive for its era: a maximum operating speed of Mach 0.84 and the ability to operate from runways as short as 4,500 feet made it a versatile workhorse for both trunk carriers and regional operators. The type's aft-mounted engines and T-tail configuration became iconic, influencing designs from the Boeing 717 to the MD-80 series. While only 137 Series 10 aircraft were built before production shifted to the longer -30 variant, the -10 established the DC-9 as one of the most successful jet transport families in history, with over 2,400 total DC-9s delivered. By the 2020s, most DC-9-10s had been retired from passenger service, but a handful remain active in cargo and charter operations, prized for their rugged simplicity and ability to access airports that modern regional jets cannot. SkyMeter has tracked 6 flights across 1 airframes and 1 operators, with SIERRA AMERICAN CORP the largest observed operator.

ACTIVE AIRFRAMES
1
last 7 days
🏢
OPERATORS
1
unique airlines
📊
FLIGHTS
6
tracked
AVG DURATION
1h 37m
per flight
INCIDENT RATE
0.0%
0 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
132 kt
Vref range
Vmo
410 kt
Mmo
0.84
Vs0 (landing)
98 kt
Vfe
250 kt
Approach category
C

Dimensions

Airframe geometry

Wingspan
89 ft
Length
104 ft
Tail height
28 ft
Wheelbase
47 ft
Gear width
18 ft
Wake category
Medium

Weight & identification

Operating limits

MTOW
90,700 lb
MALW
81,700 lb
Manufacturer model
Douglas DC 9-10
FAA designator
DC91
Registered
14

Top operators

By fleet size · last 7 days

1

Safety profile

Flagged flights · last 7 days

Recent incidents

Flagged flights of DC91

20
07/08/2026
3h 29m
⤓ Emergency descent
05/14/2026
6h 59m
△ Low approach-stability score
04/14/2026
2h 34m
△ Low approach-stability score
02/21/2026
9h 34m
△ Low approach-stability score
01/16/2026
1h 30m
△ Low approach-stability score
12/21/2025
1h 23m
△ Low approach-stability score
12/21/2025
19m
△ Low approach-stability score
12/18/2025
1h 16m
△ Low approach-stability score
12/11/2025
2h 36m
△ Low approach-stability score
12/05/2025
3h 38m
△ Low approach-stability score

Recent flights

Real flights of DC91 · airborne ≥ 20 min

30
07/16/2026
1h 53m
No alerts
07/16/2026
1h 6m
No alerts
07/15/2026
2h 5m
No alerts
07/15/2026
1h 8m
No alerts
07/14/2026
2h 28m
No alerts
07/14/2026
1h 3m
No alerts
07/08/2026
3h 29m
⤓ Emergency descent
07/05/2026
2h 41m
No alerts
07/02/2026
3h 47m
No alerts
07/02/2026
8h 59m
No alerts
07/02/2026
3h 17m
No alerts
07/02/2026
2h 23m
No alerts
07/01/2026
2h 1m
No alerts
06/30/2026
3h 22m
No alerts
06/30/2026
3h 26m
No alerts
06/30/2026
2h 15m
No alerts
06/30/2026
45m
No alerts
06/30/2026
2h 44m
No alerts
06/30/2026
54m
No alerts
06/28/2026
2h 33m
No alerts
06/28/2026
2h 36m
No alerts
06/28/2026
32m
No alerts
06/27/2026
4h 26m
No alerts
06/27/2026
2h 3m
No alerts
06/27/2026
2h 1m
No alerts
06/26/2026
3h 21m
No alerts
06/26/2026
8h 1m
No alerts
06/24/2026
1h 9m
No alerts
06/24/2026
3h 4m
No alerts
06/23/2026
1h 28m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)