221 Lesson 21
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School
University of North Dakota *
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Course
221
Subject
Aerospace Engineering
Date
Dec 6, 2023
Type
docx
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2
Uploaded by jeong0712
221 Lesson 21 (FTD)
Reading
IFH Chapter 3
Worksheet:
1.
What instruments operate on the Pitot static system?
-
ASI
2.
Draw the Pitot Static System.
3.
If the Pitot tube became blocked which instrument/instruments would this affect?
-
ASI
4.
What would be our indication this may have happened?
-
If drain hole is open, ASI would indicate zero
-
If drain hole is also blocked, ASI operates like an altimeter
5.
If we fly from a high pressure area to a low pressure area will our altimeter read higher or
lower than actual if no altimeter setting has been changed?
-
It will read lower than actual height.
6.
What are the different types of airspeed?
-
TAS, IAS, CAS, EAS
7.
What is the purpose of a flux gate
-
Flux gate compass does not have magnetic compass errors such as magnetic dip
8.
With a magnetic compass, what is deviation?
-
Disruption of alignment due to magnetic fields produced by electrical equipment or other
magnetized item.
221 Ed 13
9.
The difference between magnetic north and true north is called what?
-
Variation
10.
What instruments are gyroscopic instruments?
-
Attitude indicator, turn indicator, heading indicator
11.
What is a gyro and what are the different ways they can be powered?
-
An object that is constantly spinning on its axis. It can be powered by vacuum, electricity, venturi
12.
Describe the 2 gyroscopic principles?
-
Rigidity in space – tendency for spinning gyro to remain in its plane of rotation
-
Precession – tendency for an applied force to act 90 degrees in the direction of rotation
13.
What instruments operate on what principle?
-
Attitude indicator – rigidity in space
-
Heading indicator – rigidity in space
-
Turn indicator - precession
14.
What is the difference between the Turn-and-Slip indicator and the Turn Coordinator?
-
Turn coordinator indicates rate of yaw and rate of roll whereas the turn and slip indicator only
indicates rate of yaw
221 Ed 13
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