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Allison Engines

T56 family

In production for 44 years as of this writing, the T56 is most often seen on large military turboprop aircraft. T56
Engine statistics
Specification -A-14 -A-427
Application P-3C Orion E-2C Hawkeye
T/O Power 4591 shp 5250
T/O SFC 0.54 0.47
Cruise Power
Cruise SFC
Max pwr. pressure ratio 9.6 12
Length (in) 146.3 146.1
Dia (in) 49 48.3
Weight 1890 lb 1940