The Diamond DA42 TwinStar, a twin-engine light aircraft manufactured by Diamond Aircraft, stands out in its class for its dual engines and safety-oriented design. Unlike most single-engine planes used for short-distance travel, the DA42 offers enhanced safety and versatility.
The aircraft first flew in December 2002, with over 600 units produced by 2010. It serves private, utility, and military sectors. The DA42 is known for its aesthetic appeal, safety features, affordability, and flexibility. As older models become more affordable, interest in this twin-propeller plane continues to grow.
Diamond Aircraft’s legacy began in 1981 as Hoffmann Flugzeugbau in Austria. Known for super-light motor gliders capable of altitude climbs with small engines, the company evolved through several name changes before becoming Diamond Aircraft in 1996. In 2017, it became a subsidiary of Wanfeng Aviation.
Safety is a key focus at Diamond Aircraft. For the DA42, crash reports rarely mention “spin” or “fire.” Its long wings help prevent stalls from becoming severe; fuel tanks are protected by double support spars; resilient braided metal hoses replace rubber ones; rigid push rods provide reliable flight control; low-speed performance is improved by wing design; crosswind stability reaches up to 25 knots; a carbon fiber safety shell protects passengers; overbuilt landing gear aids rough landings; TKS ice protection ensures safe operation in icy conditions; and twin liquid-cooled engines offer redundancy and can operate on one engine if necessary.
The DA42 has received multiple awards: the Golden A’ Design Award (2020), Flying Magazine’s Editors’ Choice Award (2009), and Aero News Network – Plane of the Year (2006). It was also the first diesel-powered fixed-wing aircraft to cross the North Atlantic non-stop and fly on algae-derived jet fuel.
Different models have been developed over time:
– The original DA42 TwinStar (2004) had Thielert Aircraft TAE 125-01 Centurion engines.
– The DA42NG (2009) featured Austro AE 300 turbo diesel engines with improved efficiency.
– The latest model, DA42-VI (2012), includes aerodynamic enhancements that increase cruise speed.
The modern DA42-VI boasts specifications like a maximum speed of 197 knots and a range of 1,210 nautical miles. Avionics include Garmin G1000NXi technology with automatic landing capabilities introduced in recent years.
In 2024, Air India ordered three DA42-VIs with an option for six more to be delivered in 2025 for their new Flight Training Organization (FTO). Jane Wang from Diamond Aircraft Austria stated these planes will train pilots for commercial jet careers. This deal may indicate future expansion plans for Air India.
