Diamond Aircraft Da40 (DG40)
ICAO DG40 Light Piston

Diamond Aircraft Da40

Single Piston

The Diamond DA40 Diamond Star is an Austrian-built four-seat single-engine aircraft that has become one of the most popular training and personal touring platforms since its introduction in 1997. Built almost entirely from composite materials, the DA40 features a distinctive T-tail, low wing, and bubble canopy that provides exceptional 360-degree visibility, a design choice that has made it a favorite among flight schools and private owners who value both safety and the pure joy of flying. Its glider heritage is evident in the sleek aerodynamics and benign handling characteristics that make it forgiving for student pilots while remaining engaging for experienced aviators. Powered by either a Lycoming IO-360 or the fuel-injected Austro Engine AE300 turbodiesel (in the DA40 XLS variant), the aircraft cruises comfortably at around 140 knots with a range exceeding 700 nautical miles. The composite airframe is not only lighter and more fuel-efficient than traditional aluminum construction but also remarkably durable and corrosion-resistant, contributing to the type's reputation for low maintenance costs and long service life. The DA40's safety record stands out in general aviation: its one-piece composite safety cell and crashworthy design have earned it one of the lowest fatal accident rates in its class. The type has found widespread adoption in both Europe and North America, serving flight training organizations, air taxi operators, and private owners who appreciate its blend of efficiency, comfort, and modern avionics integration. The spacious cabin accommodates four adults with reasonable baggage capacity, while the large canopy and excellent forward visibility make it ideal for both cross-country touring and pattern work. SkyMeter has tracked 3 flights across 2 airframes and 2 operators, with TRUMBLY ROBERT ALLEN, HORTON PAMELA ANNETTE the largest observed operator.

ACTIVE AIRFRAMES
2
last 7 days
🏢
OPERATORS
2
unique airlines
📊
FLIGHTS
3
tracked
AVG DURATION
2h 57m
per flight
INCIDENT RATE
33.3%
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
65 kt
Vref range
Vmo
Mmo
Vne
176 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
2,645 lb
MALW
Manufacturer model
DA40
FAA designator
Registered

Safety profile

Flagged flights · last 7 days

Family

Related variants

0

No related variants.

Recent incidents

Flagged flights of DG40

9
8/16/2026
5h 7m
△ Low approach-stability score
8/2/2026
3h 50m
△ Low approach-stability score
7/16/2026
4h 38m
△ Low approach-stability score
7/15/2026
4h 5m
△ Low approach-stability score
7/8/2026
1h 47m
△ Low approach-stability score
6/24/2026
1h 2m
△ Low approach-stability score
4/16/2026
1h 32m
△ Low approach-stability score
8/29/2025
2h 42m
△ Low approach-stability score
8/17/2025
58m
△ Low approach-stability score

Recent flights

Real flights of DG40 · airborne ≥ 20 min

30
8/16/2026
5h 7m
△ Low approach-stability score
8/15/2026
2h 8m
No alerts
8/11/2026
1h 34m
No alerts
8/9/2026
6h 13m
No alerts
8/8/2026
3h 44m
No alerts
8/7/2026
1h 12m
No alerts
8/7/2026
1h 58m
No alerts
8/6/2026
5h 26m
No alerts
8/3/2026
5h 26m
No alerts
8/2/2026
2h 7m
No alerts
8/2/2026
3h 50m
△ Low approach-stability score
7/30/2026
3h 19m
No alerts
7/30/2026
4h 51m
No alerts
7/29/2026
5h 12m
No alerts
7/28/2026
6h 0m
No alerts
7/27/2026
3h 46m
No alerts
7/25/2026
4h 17m
No alerts
7/24/2026
3h 58m
No alerts
7/21/2026
6h 11m
No alerts
7/19/2026
2h 3m
No alerts
7/17/2026
1h 43m
No alerts
7/17/2026
4h 57m
No alerts
7/16/2026
4h 38m
△ Low approach-stability score
7/15/2026
4h 5m
△ Low approach-stability score
7/14/2026
4h 14m
No alerts
7/11/2026
5h 42m
No alerts
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© SkyMeter · All flight data subject to ODbL attribution · Tracking window: 7 days (free tier)