Non Pitot Static Instruments

Question 1

The total head thermometer uses what to record the temperature?

Answer 1

A Nickel wire that changes it electrical resistance with changing temperatures.

Question 2

The Rosemount probe only indicates correctly when?

Answer 2

The aircraft is moving thrugh the air.

Question 3

What errors are found in temperature measurments?

Answer 3

1. Instrument Error
2. Envrionmental Error
   
   1. Solar Heating
   2. Ice Accretion
3. Heating Error
   
   1. Heating from compression between SAT and TAT
   2. Friction heating from the boundary layer

Question 4

Flat plate sensors are suseptable to?

Flat plate sensors are not siseptable to?

Answer 4

The are Suseptable to:

• Instrument Error
• Envrionmental Heating
• Friction Heating in the boundary layer

They are not suseptable to:

• Heating error due to compression of the air

Question 5

What are the two types of Angle of Attack Sensors?

Answer 5

• Vane Sensor that is free to line up with the relative airflow.
• A sectino of the airfoild blade with a series of pressure measuring holes around the leading edge.

Question 6

How does the accelerometer record acceleration?

Answer 6

The acclerometer uses and E I bar system to record acceleartion measuring the force required to replace the I bar with the E bar.

Question 7

The IRS will have how many of this type of accelerometer and how will they be mounted.

Answer 7

There will 3 types of accelerometer mounted at right angles to each other.