Diamond DA-40

The efficient composite trainer built for modern flight schools

Overview

Diamond Austria 2006–Present $340,000

The Diamond DA-40 is a four-seat single-engine aircraft widely used for flight training and personal travel. Constructed primarily from composite materials, it emphasizes fuel efficiency and visibility. The aircraft has become a staple in global pilot training programs.

Specifications

Units
Engine
1 × Lycoming IO-360-M1A
Engine type
Piston
Power
180 hp · 134 kW
Avionics
Garmin G1000
Wing tips
No winglets
Seats
3
Crew
—
Cabin width
—
Cabin height
—
Cabin length
—
Exterior length
—
Tail height
—
Fuselage diameter
—
Wing span
—
Baggage volume
—
Gross weight
—
Empty weight
—
Max takeoff weight
12,900 lb  ·  5,850 kg
Max landing weight
—
Max payload
850 lb  ·  400 kg
Fuel capacity
Max cruise speed
98 kt  ·  113 mph  ·  181 km/h
Maximum speed
—
Cruise speed
—
Approach speed
—
Range
—
Fuel burn
36.90 nm/gal  ·  18.05 km/L
Ceiling
—
Rate of climb
—
Takeoff distance
1,170 ft  ·  360 m
Landing distance
1,150 ft  ·  350 m
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Diamond DA 40

Operational Context

Diamond DA-40 — composite four-seat training aircraft

The DA-40 evolved from Diamond’s earlier composite designs and first flew in the late 1990s. Entering service around 2000, it was designed to provide modern aerodynamics and improved safety compared with older metal trainers. The low-wing layout and large canopy provide excellent visibility for instruction.

Depending on variant, the DA-40 is powered by either Lycoming avgas engines or Austro diesel engines producing between 160 and 180 horsepower. Cruise speed is approximately 145 knots (270 km/h). Maximum takeoff weight is about 2,650 pounds (1,200 kg).

The aircraft’s fuel efficiency and glass cockpit options have made it attractive to flight schools and private owners. Its composite structure contributes to corrosion resistance and low maintenance requirements. The DA-40 remains one of the most widely used modern training aircraft.

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