The Diamond DA42 Twin Star is a modern, diesel-powered twin-engine aircraft with a composite airframe and full glass cockpit. Burning jet fuel instead of avgas, the DA42 offers lower fuel costs and a 936 nautical mile range, making it popular for training fleets and efficiency-minded owners.
Costs are estimates and vary based on fuel prices, annual flight hours, maintenance programs, insurance, hangar fees, and region. The low end reflects direct operating costs; the high end includes fixed costs amortized over ~200 flight hours per year.