Quick Links Take a Practice Exam Contribute to the Site Browse the Exams About this Site Privacy Policy Terms & Conditions Site Map New User Log In Examine My Cookies Contact WebMaster   Exams4Pilots Forum Forum Home - Latest News - Testimonials - Tips & Tricks - Stuck Mike - Bug Reports - Feature Request	SiteMap You are here: home->atp->H345->7.9.4.6.8.A.1 9468 When is parallax error the greatest? A) When the HS is greatest (i.e., close to 90). B) When the body being observed is on the horizon. C) When the altitude of the observer aircraft is high.

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