Diamond DA42 Twin Star vs Grob G 115

600+ (2010)^[source]

2002–present^[source]

1985–present^[source]

2004^[source]

1999^[source]

9 December 2002^[source]

November 1985^[source]

Aeronautics Defense Dominator^[source]

3 passengers^[source]

289 litres (64 imp gal; 76 US gal)^[source]

143 L (31 imp gal; 38 US gal) usable^[source]

During August 2004, the DA42 Twin Star piloted by Gérard Guillaumaud became the first diesel-powered fixed-wing aircraft to perform a non-stop crossing of the North Atlantic, taking 12.5 hours while operating with an average fuel consumption of 21.73 litres (4.78 imp gal; 5.74 US gal) per hour (10.86 litres (2.39 imp gal; 2.87 US gal) per hour per engine). In June 2010, a DA42 powered by Austro AE300 engines became the first aircraft to be publicly flown on algae -derived jet fuel.^[source]Diamond DA42 Twin Star · Development / Origins; only the objects and conditions stated in this passage

The DA42 typically accommodates four people in two rows of seating. All of the seats have been designed for crashworthiness and are complete with automotive-style three-point seat belts; while the seats themselves are fixed in position, the position of the rudder-pedals is adjustable. The front pair of seats are accessed via a front-hinged canopy while a top-hinged door located on the left side provides access to the rear seats. The pilots are housed under a sizable canopy which provides generous external visibility, save for the use of a large fixed sunscreen. Additionally, separate baggage compartments, which are accessible via external hatches, are contained within internal space in the aircraft's nose.^[source]Diamond DA42 Twin Star · Design / Overview; only the objects and conditions stated in this passage

The stall characteristics are also relatively benign, being described by Flight International as "probably the most docile of any aircraft I can remember". On the DA42, stall conditions are forewarned by the sounding of a warning horn at 5 to 7 kn (9 to 13 km/h) above stall, as well as by elevating levels of airframe buffeting and a 5–10° drop of the nose. The aircraft is relatively difficult to stall outside of substantial mishandling or deliberate intention. Both longitudinal and lateral stability can be maintained with a relatively low level of effort, not necessitating continuous trimming while the aircraft is accelerating. Active use of the rudder is necessary for effective turns and counteracting sideslip tendencies.^[source]Diamond DA42 Twin Star · Design / Performance; only the objects and conditions stated in this passage

While the DA42 is a twin-engined aircraft, this is predominantly a measure for safety. It is readily capable of sustained flight using only a single engine. DA42 NG climbs at up to 270 ft/min at sea level in standard conditions on a single engine, with performance degrading with higher altitudes and temperatures. The DA42 possesses considerable endurance, being capable of performing 13 hour-long flights without carrying additional fuel tanks; this is partially due to its high fuel efficiency of its Austro engines, which consume 13.6 US gallons per hour when operated at 75 per cent power, lower than some of its single-engined rivals. The digital FADEC (full authority digital engine controls) serves to lower operational difficulty, constantly performing tasks such as managing rpm and fault-checking. The propellers are clockwise-rotating as viewed by the pilot, so the left engine is the critical engine .^[source]Diamond DA42 Twin Star · Design / Performance; only the objects and conditions stated in this passage

The original model of the DA42 was powered by a pair of Thielert Aircraft Engines-built TAE 125-01 Centurion 1.7 engines. However, Thielert ended its production of the 1.7 litre Centurion engines in favour of a new 2.0 litre engine, marketed as the TAE 125-02-99; as a result of the engine production change, Diamond began installing the TAE 125-02-99 engine during early 2007. Although engine displacement had increased, it was deliberately de-rated in order to produce the same power 101 kW (135 hp) and torque 409 N⋅m (302 lbf⋅ft) as the earlier 1.7 L. engine.^[source]Diamond DA42 Twin Star · Design / Powerplants; only the objects and conditions stated in this passage

The DA42NG "New Generation" is powered by Diamond's third generation Austro AE 300 turbo diesel engine. The Lycoming IO-360 engine is also available as an option. The 125 kW (168 hp) AE 300 engine replaces the earlier Thielert Centurion 1.7 and 2.0 engines and is known for its good fuel efficiency, using 12.1 litres (2.7 imp gal; 3.2 US gal) per hour while loitering at maximum endurance or 30 litres (7 imp gal; 8 US gal) per hour at maximum continuous power (92%). It is also available with optional "on top" exhaust mufflers that reduce noise levels to below 59 decibels at a height of 500 feet (150 m). The Austro engine produces 20% more power than the previous Thielert engines and also results in a higher gross weight and increased performance. Diamond has claimed that the Austro engine is about 46% more fuel efficient than its gasoline rivals. It runs on diesel fuel or jet fuel , both of which are typically cheaper than aviation gasoline .^[source]Diamond DA42 Twin Star · Design / Powerplants; only the objects and conditions stated in this passage

The DA42, particularly its use in the surveillance sector, became Diamond's most important business. A dedicated surveillance model of the aircraft, designated as the DA 42 MPP , was developed; during 2008, Diamond delivered 17 DA 42 MPPs and anticipated a demand for between 50 and 60 such aircraft per year. During the latter part of 2008 and early 2009, a pair of Royal Air Force DA42 MPPs were deployed for eight months to provide combat support to coalition forces operating in Iraq ; during the deployment, these aircraft flew a combined 2,000h in the surveillance role, for which it had been outfitted with Cineflex high-definition cameras, Riegl laser scanners and Scotty satellite communications kit.^[source]Diamond DA42 Twin Star · Operational history / DA42 MPP; only the objects and conditions stated in this passage

Lycoming IO-360 134 kW (180 hp) equipped version using 100LL fuel instead of Jet-A1 . This model is intended for the North American flight training market.^[source]Diamond DA42 Twin Star · Variants; only the objects and conditions stated in this passage

Austro Engine AE 300 127 kW (170 hp) equipped version. EASA certified March 2009; FAA certified April 2010; Transport Canada certified 16 April 2012. Production aircraft have been built in Austria, Canada, China and Russia.^[source]Diamond DA42 Twin Star · Variants; only the objects and conditions stated in this passage

Aurora Flight Sciences developed an Optionally Piloted Aircraft (OPA) as an Intelligence, Surveillance and Reconnaissance (ISR) platform and can be operated as either unmanned or with pilots on board. One in service with the Swiss military procurement agency Armasuisse .^[source]Diamond DA42 Twin Star · Variants; only the objects and conditions stated in this passage

Aeronautics Defense Systems Ltd developed an UAV version of the DA42, designated as the Aeronautics Defense Dominator and first flown in July 2009. Has an endurance of 28 hours with a 408 kg (899 lb) payload and speed of 140–354 km/h (75–190 knots) to a maximum altitude of 9,144 m (30,000 ft).^[source]Diamond DA42 Twin Star · Variants; only the objects and conditions stated in this passage

Royal Air Force – 2 x DA42MPP operated in 2008 and 2009 in surveillance role.^[source]Diamond DA42 Twin Star · Operators / Military operators; only the objects and conditions stated in this passage

Capacity: 3 passengers^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Length: 8.56 m (28 ft 1 in)^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Wingspan: 13.55 m (44 ft 5 in)^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Height: 2.49 m (8 ft 2 in)^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Wing area: 16.29 m 2 (175.3 sq ft)^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Empty weight: 1,420 kg (3,131 lb)^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Gross weight: 1,999 kg (4,407 lb)^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Fuel capacity: 289 litres (64 imp gal; 76 US gal)^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Powerplant: 2 × Austro Engine E4 turbocharged diesel engine , 125 kW (168 hp) each^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Maximum speed: 365 km/h (227 mph, 197 kn)^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Cruise speed: 326 km/h (203 mph, 176 kn)^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Range: 2,250 km (1,400 mi, 1,210 nmi)^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Service ceiling: 5,486 m (18,000 ft)^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Rate of climb: 7.9 m/s (1,280 ft/min)^[source]Diamond DA42 Twin Star · Specifications (DA42 Twin Star); only the objects and conditions stated in this passage

Germany United States^[source]Inventory Origin column; table 1, row 20, cell 4; revision 1374084968; retrieved 2026-10-01

Royal Air Force Egyptian Air Force Finnish Air Force Royal Navy Army Air Corps (UK)^[source]

8.2:1^[source]

Eppler 696^[source]

3-bladed Hoffmann HO-V343K-V/183GY Constant-speed propeller , 1.83 m (6 ft 0 in) diameter^[source]

91 km/h (57 mph, 49 kn) (60 degree flap)^[source]

341 km/h (212 mph, 184 kn)^[source]

+ 6.0/ - 3.0^[source]

Deutschland^[source]Country of design · Entwurfsland