sentences:  At one point, German flag carrier Lufthansa also reportedly took an interest in the aircraft, noting its jet-like handling.Pilots have confirmed the type to be relatively fuel-efficient and capable of providing a true "jet feel" for a reasonable price.The Royal Thai Air Force operates the FT400 and FT600 versions, using it train ab initio pilots who then went on to fly the Northrop F-5E fighter aircraft.