Learjet 55

The Learjet 55 "Longhorn" is a business jet manufactured by Gates Learjet. The introduction of the Learjet 50 series occurred at the 1977 Paris air show. The winglets on the Learjet 55 were developed by NASA. The winglets gave the 55 the nickname "longhorn." Construction of the Learjet 55 began in April 1978 after extensive testing and work on the wing design which came, initially, from the Learjet 25. The Learjet 55 first flew on 19 April 1979. The first production aircraft were produced starting 18 March 1981. 147 Learjet 55 aircraft were delivered.

Variants

;54:Proposed 11-seat variant, not built.;55B:1986 - Glass cockpit, improved take-off performance and increased range.;55C:1987 - New rear underfuselage design, delta fins to increase stability and reduced the landing speed.;55C/LR:Held an extra 259 lb of fuel in the tailcone.;56:Proposed eight-seat version, not built.

pecifications (Learjet 55)

aircraft specification

plane or copter?=plane
jet or prop?=jet
crew=2
capacity=7 passengers
length main=55 ft 1 in
length alt=16.80 m
span main=42 ft 9 in
span alt=13.35 m
height main=14 ft 8 in
height alt=4.48 m
area main=264.5 ft²
area alt=24.57 m²
empty weight main=12,860 lb
empty weight alt=5,830 kg
max takeoff weight main=21,500 lb
max takeoff weight alt=9,750 kg
max landing weight=18,000 lb
max landing weight alt=8160 kg

more general=
engine (jet)= Garrett TFE731-3A-2B
type of jet=
number of jets=2
thrust main=3,700 lbf, 3,880 lbf w/ APR
thrust alt=16.5 kN, 17.3 kN w/ APR
max speed main=549 mph
max speed alt=477 knots, 884 km/h
cruise speed main=462 mph
cruise speed alt=402 knots, 744 km/h
range main=2,582 mi
range alt=2,244 nm, 4,156 km
ceiling main=51,000 ft
ceiling alt=15,500 m
more performance=