CRJ-700 Systems and Flight Operations Vocabulary

Flashcards defining key terminology, operational limits, and system parameters for the CRJ-700 based on the provided lecture transcript.

RVSM Operations Altitude Range (CRJ-700)

Approved altitude range from FL290 to FL410, inclusive.

-How many Flight Attendant jump seats are installed in a CRJ-700?

Two, one forward and one aft

Maximum Landing Weight (CRJ-700)

$$67{,}000\,\text{pounds}$$

Maximum Takeoff Weight (CRJ-700)

$$75{,}000\,\text{pounds}$$

Maximum Crosswind in Rain (CRJ-700)

$$27\,\text{knots}$$

Maximum Crosswind in Snow (CRJ-700)

$$20\,\text{knots}$$

Maximum Flaps 45 Speed

$$170\,\text{KIAS}$$

Maximum Flaps 30 Speed

$$185\,\text{KIAS}$$

Maximum Speed with Gear Pinned Down

$$220\,\text{KIAS}$$

IDG Electrical Output

Produces $115\,\text{volts}$ at $400\,\text{Hz}$ and supports $40\,\text{kVA}$.

TRU (Transformer Rectifier Unit)

A component that converts AC electrical power to DC electrical power.

HOT-LOP

An EICAS message standing for High Oil Temperature, Low Oil Pressure (indicates loss of oil).

Dual-Channel FADEC Redundancy

An engine control configuration where one channel controls while the other monitors.

PRSOV (Pressure Regulating and Shutoff Valve)

A valve that opens to allow engine bleed air into the pneumatic system and regulates pneumatic system pressure at cruise flight.

Ground Valve

A valve in the CRJ-700 pressurization system designed to ensure a depressurized aircraft when landing.

Normal Hydraulic Pressure

$$3000\,\text{PSI}$$

Scavenge Ejectors

Ejectors that move fuel from the wing tanks to collector tanks.

Collector Tanks

Fuel tanks located in, but not a part of, the forward center tank.

Center Tank Capacity

$$4{,}610\,\text{pounds}$$

Motive Flow

Excess fuel sent back through the fuel system from the engines to operate the fuel ejectors.

NACA Scoop Vents

Vents providing dynamic and static venting in the air or on the ground for the fuel system.

Crossflow Pump

A pump used to move fuel between the wing tanks.

Pitch Disconnect Handle

A control handle that, when pulled, allows the left yoke (Captain's) to control the left elevator.

EICAS

Engine Instrument Crew Alerting System.

FMA (Flight Mode Annunciator)

A flight instrument display showing Active modes on the top line and Armed modes on the bottom line.

Airspeed Trend Vector

An indicator on the display showing the predicted airspeed $10\,\text{seconds}$ in the future.

Attenuation

The weakening of radar signals caused by rain, which can hide storms behind precipitation and give pilots a false sense of clear air.

Piccolo Tubes

Tubes that send hot air inside the leading edge of the wing to prevent ice buildup.