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The space shuttle would display the spacecraft's attitude in one of three frames: LVLH, REF, or INRTL.

Launch procedures called for LVLH to be selected very early in launch.

The attitude indicator would then display pitch and roll assuming a yaw-pitch-roll Euler sequence.

But according to the space shuttle manual, yaw was not displayed. Why? And did the crew get the yaw angle from other indicators?

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    $\begingroup$ No reference material in front of me, but I suspect it would just be shown on the HSI directly underneath the ADI. Though for launch, this would be less important than the trajectory displays on the CRTs, as yaw would translate to azimuth and therefore inclination. $\endgroup$ – Tristan Jan 27 at 16:01

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