The Learjet Model 35 and Model 36 are a series of American multi-role business jets and military transport aircraft. 
The aircraft are powered by two Garrett TFE731-2 turbofan engines. Its cabin can be arranged for 6-8 passengers. 
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.
http://en.wikipedia.org/wiki/Learjet_35A