Diamond Twin Star
Piston • twin engine • Low Wing • Retractable gear
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About the Diamond Twin Star
Diamond DA42 Twin Star / -VI
The DA42 is the definitive modern light twin. Originally introduced with Thielert engines, the current ‘NG’ and ‘-VI’ variants utilize the more robust Austro AE300 diesel engines. It is famous for its ‘single-engine-like’ fuel burn and extreme ease of operation thanks to FADEC (Full Authority Digital Engine Control). For many GA pilots, the DA42 represents the most accessible path into multi-engine flying without the high maintenance and fuel costs typically associated with legacy twins like the Baron or Seneca.
Key Features for GA Buyers
- Unmatched Efficiency: Total fuel burn is approximately 10.4 - 13.0 gph of Jet-A at cruise, which is comparable to many high-performance singles.
- Single Lever Control: FADEC manages power, RPM, and mixture, simplifying multi-engine operations and emergency procedures (auto-feathering).
- Modern Safety: Features a crashworthy carbon fiber safety cell and a lightning protection system.
- Single Engine Performance: Unlike many older light twins, the DA42-VI maintains a positive rate of climb at high density altitudes even with an engine inoperative.
Trade-offs
- Cabin Width: The cockpit can feel tight for two broad-shouldered adults side-by-side.
- Acquisition Cost: High demand for flight training keeps used prices high and new delivery lead times long.
- Useful Load: While respectable, carrying four adults plus full long-range fuel (76 gal) often requires careful weight management.
Technical Specifications
Dimensions
- Wingspan
- 44.33 ft
- Length
- 28.08 ft
- Height
- 8.17 ft
Weights
- Max Takeoff Weight
- 4,407 lbs
- Max Landing Weight
- 4,189 lbs
- Useful Load
- 1,299 lbs
- Fuel Capacity
- 76 gal
Performance
- Cruise Speed
- 176 KTAS
- Range
- 1215 NM
- Service Ceiling
- 18,000 ft
- Rate of Climb
- 1550 fpm
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