Question 888Navigation General

The correct answer is D) The ARPA will generate data as if the target was still being tracked by radar. This is because ARPA systems are designed to continue generating data on a target even if the radar loses the target echo due to weather conditions. The ARPA maintains a "memory" of the target's last known course and speed, and uses this information to extrapolate the target's position and movement during the time when the radar is unable to detect it. This allows the ARPA to provide continuous target information to the user, rather than losing the target completely. The other answer choices are incorrect because A) the ARPA does not use sea return echoes to generate data, B) the ARPA does not lose all memory of the target, and C) the ARPA is not required to provide a lost target alarm in this situation.