Gyroscopes

[susu971]

Hello,
My question is about gyroscope ! i can't understand how it works and no one can answer me about this question so maybe one of you can :

Gyroscope horizontal flyer is align with :

- horizontal axis
-lateral axis
- longitudinal axis

and why ?
thank you in advance

[H Peacock]

Depends upon what you are using the gyro to measure. For an attitude indicator the spin axis is vertical. For a turn indicator the spin axis is usually horizontal, ie across the aircraft.

[peekay4]

Nice diagrams here:

Gyroscopic Instruments - Flight Instructor Wiki

It shows turn coordinator gyro is canted diagonally, so it can respond to both roll and yaw.

[susu971]

ok great guys, i think you've answered my question very well !
tanks and it was lvertical axis not horizontal, in the 3 propositions
thnnks a lot

[latetonite]

You are ready to go buy a type rating now!