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13 Cards in this Set

  • Front
  • Back

Engine Model

Pratt & Whitney


DH1 DH3


PW120A PW123

Engines Normal Takeoff Power Rating

DH1: 1800 SHP


DH3: 2140 SHP

Uptrim power

Develop up to



DH1 DH3


2000 SHP 2380 SHP

Propeller Type and Model

Hamilton Standard


14-SF-23


four blade feathering reversible unit.

Warning Light



ENG OIL PRESS

Engine Oil drops below


42 +/- 2 psi

HYD FLUID HOT


Caution light illuminated when

Hydraulic Temperature exceeds



109 C

Accessory gearbox connected to:

High pressure compressor rotor.

Accessory gearbox drives:

Engine driven fuel pump


Oil pump


DC Starter/Generator

Reduction gearbox drives:

Propeller overspeed governor


Propeller control unit oil pump


Propeller control unit


Main hydraulic pump


AC generator

Minimum Oil Temperature for T.O

Temp: 45 C

AC Generator cooled by

Engine Oil cooling

DC Generator cooled by

Air Cooled

TCAS Inhibits descent when

Below 1100 ft AGL for advisories


Below 1000 ft AGL for resolution