Honeywell ALF 502

The Honeywell ALF 502/LF 507 is a turbofan engine produced by Lycoming, AlliedSignal and then Honeywell.The ALF 502 was certified in 1980, and used on the BAe 146 and Bombardier Challenger 600. The improved, higher-thrust LF 507 was used on the Avro RJ update of the BAe 146.

The engine was chosen for the BAe 146 because of its quietness and low emissions, achieved using a high-bypass geared fan and a reverse-flow combustion chamber.

pecifications (ALF 502)

jetspecs

type=Bypass turbofan engine (Bypass ratio 5.7)
length=63.6 in (1,615 mm)
diameter=Fan: 40.25 in (1,022 mm)
weight=1,336 lb (606 kg)
compressor=axial and centrifugal
combustion=
turbine=
fueltype=
oilsystem=
power=
thrust=6,970 lb_f (31.13 kN)
compression=
aircon=
turbinetemp=
fuelcon=
specfuelcon=0.406 lb/(lb_f·h)
power/weight=
thrust/weight=

pecifications (LF 507)

jetspecs

type=Bypass turbofan engine (Bypass ratio 5.3)
length=65.5 in (1,664 mm)
diameter=Fan: 40.25 in (1,022 mm)
weight=1,385 lb (628 kg)
compressor=axial and centrifugal
combustion=
turbine=
fueltype=
oilsystem=
power=
thrust=7,000 lb_f (31.14 kN)
compression=
aircon=
turbinetemp=
fuelcon=
specfuelcon=0.406 lb/(lb_f·h)
power/weight=
thrust/weight=

External links

* [http://www.honeywell.com/sites/aero/Propulsion_Engines.htm Honeywell propulsion products page]
* [http://www.swiss-technical-services.com/tsindex/print/pr-honeywell-alf_502_507-technical-details Technical details from Swiss International Air Lines]