Flight Instruments

Question 1

ADI HSI MISCOMPARE

Answer 1

Question 2

How many ADS have the E JETS and which are their components?

Answer 2

– ADS 1: TAT 1, ADSP 1/2 and ADA 1 (Air Data Application)
– ADS 2: TAT 2, ADSP 3/4 and ADA 2.
– ADS 3: TAT 1, ADSP 3/4 and ADA 3.
– ADS 4: ADSP 3/4 and IESS.
– ADS FCS: ADSP 1/2.
The ADA computes final air data (altitude speed etc), and transmit this information to the appropriate system.

Question 3

How many ADSP are on the aircraft and what compose them?

Answer 3

4 ADSP, composed of:
Multifunction probes
Air Data Computer

Question 4

ADSP and TAT sense and transmit what?

Answer 4

Static pressure, total pressure, AOA, and TAT to the Air Data System.
The angle of attack is calculated by difference of static pressure between the smart probes.

Question 5

With which ADS are PFD & IESS normally associated with? What is the automatic reversion?

Answer 5

Left PFD, ADS1
Right PFD, ADS2
IESS, ADS4

Question 6

What does the IRS compute? What are its components?

Answer 6

Attitude, heading, ground speed, position, wind data.

The main component of the IRS is the Inertial Reference Unit (IRU), which interfaces with the Modular Avionic Unit (MAU), Global Positioning System (GPS) and the Air Data Computer (ADC)
Captain’s PFD has IRS1, First Officer’s has IRS2