LEAR 31
The Learjet Model 31 combines the solid aerodynamics of earlier Lear models with quantum leaps in technology, resulting in one of the top performing aircraft in the marketplace. Normal cruise altitudes range from 41,000 to 47,000 feet, and the aircraft's acceleration and climb ratios coupled with a maximum cruising altitude of 51,000 feet (15,500 m) is rivaled by few other civil aircraft.