This is a small jet with two Garrett TFE731-2 turbofan engines manufactured by Learjet Inc. Its first flight was on August 22nd of 1973 and was introduced to the market on 1974. Production ran until 1994 with a total of 738 jets delivered.
It has a maximum speed of 872 km/h (471 knots, 542 mph) at 7,600m (25,000 ft) and has a cruise speed of 774 km/h (418 knots, 481 mph) at 14,000 m (45,000 ft). It has a length of 14.83 m (48 ft 8 in) and a height of 3.73 m (12 ft 3 in) this makes room for a crew of 1-2 pilots and 6 passengers. This model has four civil variants: Laerjet 35 (original version), Learjet 35A (an upgraded from Learjet 35, has TFE731-2-2B engines), Learjet 36 (has a larger fuel tank and reduces the passenger area), Learjet 36A (has engines upgraded) And seven military variants: C-21A (have room for eigth passagers and can transport litters), EC-21A, PC-21A (is anti-submarine warfare and has a search radar), RC-21A (is equipped with photography cameras and surveillance camera system), U-36, R-21A and U-21A (has a missile seeker simulator, a radar and firing training assessment devices)
Is used specially for military transportation by Namibia, Bolivia, Peru, Argentina, Brazil, Chile, Mexico, Finland, Japan, Thailand, United States, Switzerland, Saudi Arabia and United Arab Emirates.
The aircraft are powered by two Garrett TFE731-2 turbofan engines. Its cabin can be arranged for 6-8 passengers. The longer-range Model 36 has a shortened passenger area to provide more space in the aft fuselage for fuel tanks.
The engines are mounted in nacelles on the sides of the aft fuselage. The wings are equipped with single-slotted flaps. The wingtip fuel tanks distinguish the design from other aircraft having similar functions.