LJ28

GATES LEARJET Learjet 28

Aircraft
Name
Learjet 28
Manufacturer
Body
Narrow
Wing
Fixed Wing
Position
Low wing (winglets)
Tail
T-tail
WTC
M
APC
C
Type Code
L2J
Engine
Jet
Engine Count
Multi
Position
Both sides of rear fuselage
Landing gear
Tricycle retractable
Manufacturered as
GATES LEARJET 29
GATES LEARJET 28

LJ28

The Learjet 28 is an American eight to ten seat (two crew and six to eight passengers), twin-engined, high speed business jet, intended to be the successor to the Learjet 25. The Learjet 29 is identical except for the addition of a long-range fuel tank, resulting in the reduction of the capacity to six (two crew and four passengers). Both were manufactured by Learjet, and were marketed under the Longhorn name. Only five production Learjet 28s, and four Learjet 29s, were constructed before production ceased in 1982. Both types were subsequently replaced by the Learjet 35.

Note: The Model 28 prototype employed the first winglets ever used on a jet and a production aircraft, either civilian or military.

Technical Data
Wing span (metric)
13.35 m
Length (metric)
14.50 m
Height (metric)
3.73 m
Powerplant

2 x General Electric CJ610-8A.

Engine Model(s)
General Electric CJ610
Indicative Performance Data
Take-Off
V2
n/a
Distance
927 m
MTOW
6804 kg
Initial Climb (to 5000 ft)
IAS
n/a
ROC
n/a
Initial Climb (to FL150)
IAS
n/a
ROC
n/a
Initial Climb (to FL240)
IAS
n/a
ROC
n/a
MACH Climb
MACH
n/a
ROC
n/a
Cruise
TAS
452 kts
MACH
0.81
Ceiling
510
Range
1230 NM
Initial Descent (to FL240)
MACH
n/a
ROD
n/a
Descent (to FL100)
IAS
n/a
ROD
n/a
Descent (FL100 & below)
IAS
n/a
MCS
n/a
ROD
n/a
Approach
Vapp (IAS)
n/a
Distance
833 m

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