Answer :
Final answer:
The glide slope antenna is located near the approach end of the runway, and its normal usable range is 10 NM. Therefore the correct answer is option B.
Explanation:
The correct answer is option B) Near the approach end of the runway; 10 NM. The glide slope antenna is typically positioned near the approach end of the runway to provide guidance to aircraft during the final stages of descent for landing. This location allows for optimal alignment with the aircraft's approach path, ensuring accurate navigation. Additionally, the normal usable range of the glide slope antenna is 10 NM, meaning that it provides reliable guidance within this distance from the runway threshold.
Moreover, the positioning of the glide slope antenna near the approach end of the runway is essential for facilitating safe and efficient landings, particularly during low-visibility conditions or instrument approaches. By transmitting signals that indicate the correct descent angle to pilots, the glide slope antenna helps ensure that aircraft approach the runway at the appropriate altitude and trajectory for a smooth touchdown. Pilots rely on this guidance to maintain precision during the critical phase of landing, enhancing overall flight safety.
Furthermore, the designated usable range of the glide slope antenna reflects the distance over which pilots can effectively receive and interpret signals for vertical guidance during the approach and landing phases. Within this range, pilots can rely on the accuracy of the glide slope information provided by the antenna to maintain proper descent profiles and achieve stabilized approaches. Understanding the location and range of the glide slope antenna is crucial for pilots to conduct safe and precise landings, contributing to the overall safety and efficiency of air transportation operations. Therefore the correct answer is option B.
