|
gptkbp:instance_of
|
gptkb:engine
|
|
gptkbp:bfsLayer
|
5
|
|
gptkbp:bfsParent
|
gptkb:MD_500_H
gptkb:MD_500_J
gptkb:MD_500_N
|
|
gptkbp:application
|
helicopters
|
|
gptkbp:average_temperature
|
1200 ° F
|
|
gptkbp:certification
|
FAA certified
|
|
gptkbp:compression_ratio
|
6.5:1
|
|
gptkbp:cooling_system
|
air-cooled
|
|
gptkbp:design
|
5000 hours
|
|
gptkbp:diameter
|
14 in
|
|
gptkbp:drivetrain
|
reduction gearbox
|
|
gptkbp:emissions_standard
|
EPA Tier 4
axial exhaust
|
|
gptkbp:engine
|
gptkb:Allison_250
gptkb:Allison_250-C30
gptkb:Allison_250-C18
Brayton cycle
twin spool
|
|
gptkbp:engine_type
|
single-stage turbine
|
|
gptkbp:first_flight
|
gptkb:1960
|
|
gptkbp:fuel_capacity
|
0.5 lb/hp/hr
|
|
gptkbp:fuel_type
|
gptkb:Jet_A
annular combustor
hydromechanical fuel control
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Allison 250-C20 B
|
|
gptkbp:ignition_system
|
spark ignition
|
|
gptkbp:launched
|
electric starter
|
|
gptkbp:length
|
36 in
|
|
gptkbp:maintenance
|
500 hours
|
|
gptkbp:manufacturer
|
gptkb:Allison_Engine_Company
|
|
gptkbp:market_segment
|
gptkb:aircraft
|
|
gptkbp:noise_level
|
85 d B
|
|
gptkbp:notable_users
|
gptkb:military_unit
gptkb:United_Nations
gptkb:Canadian_Forces
gptkb:military_base
Air Ambulance Services
|
|
gptkbp:power_output
|
500 shp
|
|
gptkbp:powers
|
2.5 hp/lb
|
|
gptkbp:propulsion
|
gptkb:3.0
420 shp
|
|
gptkbp:service_ceiling
|
20,000 ft
|
|
gptkbp:type
|
gptkb:engine
|
|
gptkbp:used_in
|
gptkb:Bell_206
gptkb:Agusta_A109
|
|
gptkbp:weight
|
150 lb
|