The Learjet 35/36 is essentially a Learjet 25 airframe, powered by two Honeywell TFE731-2 engines producing 3,500 pounds of thrust. It received its Supplemental Type Certificate in 1976. These are also the last models to employ the short wing with tip tanks. With seats full, range for the Learjet 35 increased from the Learjet 25’s 895 nautical miles to 1,930 nautical miles. The Learjet 36 is a Model 35 with the rear bench seat removed to make room for an auxiliary fuel tank holding 1,200 pounds of additional fuel. This extra fuel increased its range by 423 nautical miles, giving non-stop coast-to-coast capability when flown at long-range cruise. This looked good on paper but it did not take customers long to learn that a Learjet 35 flying at high cruise and making one refueling stop could beat the Learjet 36 from New York to Los Angeles by about 20 minutes. Only 43 were delivered, while 609 Model 35s were delivered.
