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 17 flights across 3 airframes and 1 operators, with SIERRA AMERICAN CORP the largest observed operator.

ACTIVE AIRFRAMES
3
last 7 days
🏢
OPERATORS
1
unique airlines
📊
FLIGHTS
17
tracked
AVG DURATION
2h 21m
per flight
INCIDENT RATE
5.9%
1 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

17
9/2/2026
3h 10m
△ Low approach-stability score
7/8/2026
3h 29m
⤓ Emergency descent
5/30/2026
45m
△ Low approach-stability score
5/14/2026
6h 59m
△ Low approach-stability score
4/14/2026
2h 34m
△ Low approach-stability score
2/21/2026
9h 34m
△ Low approach-stability score
1/16/2026
1h 30m
△ Low approach-stability score
12/11/2025
2h 36m
△ Low approach-stability score
12/5/2025
3h 38m
△ Low approach-stability score
11/23/2025
53m
△ Low approach-stability score

Recent flights

Real flights of DC91 · airborne ≥ 20 min

30
9/3/2026
6h 1m
No alerts
9/2/2026
3h 10m
No alerts
9/2/2026
3h 20m
No alerts
9/2/2026
3h 10m
△ Low approach-stability score
9/2/2026
6h 49m
No alerts
9/1/2026
1h 46m
No alerts
8/31/2026
2h 2m
No alerts
8/31/2026
2h 12m
No alerts
8/31/2026
3h 23m
No alerts
8/31/2026
1h 23m
No alerts
8/28/2026
3h 3m
No alerts
8/27/2026
3h 10m
No alerts
8/27/2026
2h 41m
No alerts
8/27/2026
1h 4m
No alerts
8/27/2026
2h 27m
No alerts
8/26/2026
1h 4m
No alerts
8/25/2026
2h 44m
No alerts
8/25/2026
5h 21m
No alerts
8/25/2026
2h 39m
No alerts
8/24/2026
1h 15m
No alerts
8/24/2026
1h 10m
No alerts
8/24/2026
3h 53m
No alerts
8/23/2026
1h 24m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)