If you wish to contribute or participate in the discussions about articles you are invited to join SKYbrary as a registered user

 Actions

GATES LEARJET Learjet 55

From SKYbrary Wiki

LJ55
Aircraft
Name Learjet 55
Manufacturer GATES LEARJET
Body Narrow
Wing Fixed Wing
Position Low wing (winglets)
Tail T-tail
WTC Medium
APC C
Type code L2J
Aerodrome Reference Code 3A
Engine Jet
Engine count Multi
Position Both sides of rear fuselage
Landing gear Tricycle retractable
Mass group 3


Manufacturered as:

GATES LEARJET 55
LEARJET VU-55
LEARJET 55


GATES LEARJET Learjet 55

GATES LEARJET Learjet 55 GATES LEARJET Learjet 55 3D

Description

Mid-size corporate jet. In service since 1981. New fuselage development of Learjet 28/29 Longhorn. A number of variants were produced:

  • Learjet 55B with modified wings and digital flightdeck,
  • Learjet 55C with delta fins and
  • 55ER for extended range.

Production ceased in 1990 and changed to improved Learjet 60 in 1993. 147 aircraft were built, in 1999 140 remain in service mainly in Europe and North America.

Technical Data

Wing span 13.3 m43.635 ft
Length 16.8 m55.118 ft
Height 4.5 m14.764 ft
Powerplant 2 x 16.46 kN Garrett TFE731-3A-2B turbofans.
Engine model Garrett TFE731

Performance Data

Take-Off Initial Climb
(to 5000 ft)
Initial Climb
(to FL150)
Initial Climb
(to FL240)
MACH Climb Cruise Initial Descent
(to FL240)
Descent
(to FL100)
Descent (FL100
& below)
Approach
V2 (IAS) 140 kts IAS 170 kts IAS 290 kts IAS 290 kts MACH 0.72 TAS 400 kts MACH 0.72 IAS 290 kts IAS kts Vapp (IAS) 140 kts
Distance 1400 m ROC 4000 ft/min ROC 3000 ft/min ROC 2500 ft/min ROC 1500 ft/min MACH 0.76 ROD 1000 ft/min ROD 4000 ft/min MCS 180 kts Distance 1000 m
MTOW 95309,530 kg
9.53 tonnes
kg
Ceiling FL510 ROD ft/min APC C
WTC M Range 25002,500 nm
4,630,000 m
4,630 km
15,190,288.725 ft
NM

Accidents & Serious Incidents involving LJ55

None on SKYbrary