The Learjet 55C is one of the more highly refined developments in the long line of Bombardier / Learjet aircraft. The Learjet 55, which first flew in November 1979, utilized the Longhorn wing along with the Lear 35’s TFE731 turbofan engines and a new, larger fuselage

Learjet 55C: Announced September 1987; incorporated Delta Fins which improved stability at all speeds, eliminated Dutch roll, softened stall, reduced approach speeds and ended need for stick puller/pusher and dual yaw dampers at departure.

55C 型号将现在常见的三角鳍引入到 Learjet 线。 除了避免失速能力之外，这些纵向尾翼表面还改善了操控性和性能，从而消除了早期型号的复杂推杆系统。

This model has seven variants: Learjet 55, Learjet 55B (a better take-off performance and a higher range), Learjet 55C (increase in stability), Learjet 55C/ER (extended-range). The stand-up cabin is the aircraft’s single biggest improvement. 50 percent more cabin volume than its predecessors is enjoyed in the 55.

The Learjet 55C is powered by two Honeywell TFE 731-3AR engines with 3,700 pounds of thrust. It was designed with updated under-fuselage design, Delta Fin to increase stability, and reduced landing speed.

For all of our readers who have come to think of a Lear-jet as one of the most challenging-to-fly aircraft in pro-duction, the longhorn Learjet 55C is about to break the stereotype. Its handling is docile and its manners are predictable. It rumbles and …

The Learjet 55C is a medium-range, twin turbofan-powered business aircraft configured as a cantilever low-wing monoplane with slight leading-edge sweep. The swept horizontal and vertical stabilizers are arranged in a T-tail configuration.

The 55C introduced `Delta Fins' which gave a number of performance and handling advantages, the 55C/ER is an extended range version with additional fuel in the tail cone (the additional tank can be retrofitted to earlier aircraft), while the 5C/LR introduced more fuel capacity.

Weights (lb) Learjet 55C, LR-55C; Max Ramp: 21,750: Max Takeoff: 21,500: Max Landing: 18,000: Zero Fuel: 15,000c: BOW: 13,258: Max Payload: 1,742: Useful Load: 8,492 ...

Range with two crew, four passengers and reserves 4442km (2397nm) for 55C/LR. 60 - High cruising speed 839km/h (453kt), normal cruising speed 828km/h (447kt), long range cruising speed 778km/h (420kt).