Diamond Aircraft Da40 (D253)
ICAO D253 Light Piston

Diamond Aircraft Da40

Single Piston

The Diamond DA40 is an Austrian four-seat single-engine aircraft that redefined light GA design when it entered production in 1997. Built entirely from composite materials with a distinctive T-tail and bubble canopy, the DA40 was among the first certified aircraft to prove that carbon fiber construction could deliver both superior fuel efficiency and crashworthiness in the training and personal flying market. Its low-wing configuration and sleek aerodynamics give it a cruise speed around 140 knots on just 8-9 gallons per hour, making it one of the most economical touring aircraft in its class. The type has become a global standard for flight schools, with over 2,500 delivered worldwide, and remains in production today in both Austro Engine diesel and Lycoming gasoline variants. Diamond's decision to use a Garmin glass cockpit as standard equipment from the early 2000s made the DA40 a pioneer in bringing advanced avionics to the entry-level market, influencing an entire generation of trainer aircraft design. The DA40's benign stall characteristics and excellent visibility have made it particularly popular in Europe, where its fuel-sipping Austro diesel engine appeals to operators facing high avgas costs. SkyMeter has tracked 2 flights across 2 airframes and 1 operators, with unique routes observed.

✈
ACTIVE AIRFRAMES
2
last 7 days
🏢
OPERATORS
1
unique airlines
📊
FLIGHTS
2
tracked
⏱
AVG DURATION
26m
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
65 kt
Vref range
—
Vmo
—
Mmo
—
Vne
178 kt
Vno
151 kt
Vs1 (clean)
50 kt
Vs0 (landing)
45 kt
Vfe
109 kt
Approach category
—

Dimensions

Airframe geometry

Wingspan
—
Length
—
Tail height
—
Wheelbase
—
Gear width
—
Wake category
L

Weight & identification

Operating limits

MTOW
2,646 lb
MALW
—
Manufacturer model
DA40
FAA designator
—
Registered
—

Top operators

By fleet size · last 7 days

0

No operator data available.

Safety profile

Flagged flights · last 7 days

Family

Related variants

1

Recent incidents

Flagged flights of D253

8
9/19/2026
1h 12m
△ Low approach-stability score
6/24/2026
2h 11m
△ Low approach-stability score
6/22/2026
23m
△ Low approach-stability score
6/15/2026
49m
△ Low approach-stability score
5/2/2026
1h 27m
△ Low approach-stability score
3/29/2026
1h 10m
△ Low approach-stability score
8/5/2025
44m
△ Low approach-stability score
6/27/2025
1h 19m
△ Low approach-stability score

Recent flights

Real flights of D253 · airborne ≥ 20 min

30
10/5/2026
54m
No alerts
10/5/2026
44m
No alerts
10/4/2026
50m
No alerts
10/3/2026
33m
No alerts
10/3/2026
27m
No alerts
9/27/2026
33m
No alerts
9/27/2026
23m
No alerts
9/27/2026
4h 16m
No alerts
9/27/2026
21m
No alerts
9/26/2026
1h 21m
No alerts
9/26/2026
1h 27m
No alerts
9/26/2026
3h 1m
No alerts
9/25/2026
57m
No alerts
9/24/2026
1h 24m
No alerts
9/19/2026
1h 33m
No alerts
9/19/2026
27m
No alerts
9/19/2026
1h 12m
△ Low approach-stability score
9/19/2026
29m
No alerts
9/13/2026
1h 1m
No alerts
9/13/2026
56m
No alerts
9/12/2026
43m
No alerts
9/6/2026
1h 7m
No alerts
9/5/2026
1h 21m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)