This is a small twin-engine executive jet manufactured by Learjet which took its first flight on May 11th of 1987 and was introduced to the market in October of 1987. Production ran until October 1st of 2003.
It has a maximum speed of 992.2856 kph (0.81 mach) and has a cruise speed of 515 mph (448 kn; 829 km/h). Has a length of 14.83 m (48 ft 8 in) and a height of 3.73 m (12 ft 3 in), this makes it optimal for a crew of 2 pilots and 7 passengers. This model has three variants: Learjet 31 (Original version with the Longhorn wing of the 55, 28 and 29 models), the Learjet 31A (with a Electronic Flight Information System 50 and a dual KFC 3100 two-axis autopilot) and the Learjet 31A/ER (with range of 3539 km (2199 miles or 1911 nm).)
It is used for private transportation by: United Arab Emirates (The Eghtesad Family), Canada (Vinci Aviation), Estonia (Panaviatic), United States (Elite Air, NASA and Pulver Aviation) and Iran (EN Securities). For military transportation by: Pakistan (Government of Pakistan) and Indonesia (Ministry of Transportation).