Lear 45 Acronyms (10/28/2024)

Question 1

AHRS

Answer 1

Attitude and Heading Reference System (Runs flight instruments)

Question 2

CAS

Answer 2

Crew Alerting System (Messages on the EICAS)

Question 3

CWP

Answer 3

Crew Warning Panel (Part of the warning system)

Question 4

DAU

Answer 4

Data Acquisition Unit (Runs the engine instruments)

Question 5

DEEC

Answer 5

Digital Electronic Engine Control (Engine computers)

Question 6

DU

Answer 6

Display Unit (Four main instrument panel displays)

Question 7

EI

Answer 7

Engine Indication (Engine instruments on EICAS)

Question 8

EICAS

Answer 8

Engine Indicating Crew Alerting System (Normally on DU #2)

Question 9

FPA

Answer 9

Flight Path Angle (Pipper on attitude indicator)

Question 10

IC600

Answer 10

Integrated Computer 600 (Two on aircraft, central computers)

Question 11

MCR

Answer 11

Maximum Cruise Rating (Detent on throttles, no time limit)

Question 12

MCT

Answer 12

Maximum Continuous Thrust (Detent on throttles, no time limit)

Question 13

MFD

Answer 13

Multi Function Display (Normally DU #3)

Question 14

MSW

Answer 14

Control Wheel Master Steer (Multiple function button on control wheels)

Question 15

PFD

Answer 15

Primary Flight Display (Pilot/copilot flight instruments, DU #1 & #4)

Question 16

QRH

Answer 16

Quick Reference Handbook (Normal, abnormal, & emergency checklist)

Question 17

RMU

Answer 17

Radio Management Unit (Two on panel for comm/nav radio ops)

Question 18

TCAS

Answer 18

Terrain Alert & Collision Avoidance System (Displayed on MFD DU #3)