When lined up for takeoff on RWY 27, the compass and heading indicator should display a heading of about?

When aligned for takeoff on RWY 27, the runway designation indicates that it is oriented approximately 270 degrees. However, due to magnetic variation and potential compass errors, the compass and heading indicator will not read exactly 270 degrees when an aircraft is lined up on the runway.

The correct heading shown on the compass and heading indicator will typically be slightly different due to these factors. A reading of approximately 275 degrees accounts for these variations, providing a more accurate representation of the aircraft's actual heading when positioned on the runway. This slight adjustment reflects typical navigational considerations in flying, ensuring that the aircraft is aligned correctly with the runway despite the natural discrepancies in compass readings.

Understanding this context helps pilots align properly for takeoff and ensures safe navigation procedures.