The Diamond DA-42 ”Twin Star” is a twin-engine composite aircraft operating under a Standard Airworthiness Certificate. It is capable of carrying two passengers with a crew of two. It has two Thielert TAE-125-02-99 diesel engines each producing 135 HP at sea level. The maximum takeoff weight is 3,935 lbs. The DA-42 is a TAA with modern avionics, GPS and glass panel displays. NTPS uses the DA-42 for Performance and Flying Qualities flight test instruction.