What does a full scale deviation of the glideslope represent?

A full-scale deviation of the glideslope is indicative of a significant vertical deviation from the ideal approach path when landing an aircraft. This deviation is typically calibrated in degrees, where specific numerical values correlate to the glideslope indications in the cockpit.

In aviation, particularly in instrument landing systems (ILS), a full-scale deflection usually signifies a deviation that puts the aircraft considerably outside the intended glide path. The precision of this indication is crucial for ensuring safety during the landing phase.

The standard for the glideslope is around 0.7° of deviation. When the deviation reaches this threshold, it suggests that the aircraft is not aligned with the proper descent profile, necessitating corrective action from the pilot.

This understanding is key for pilots to maintain the safety and accuracy of landings, as failing to adhere to the correct glide slope can lead to dangerous landing situations. Therefore, the correct answer is representative of a specific, widely accepted standard in the aviation community regarding vertical approach deviations.