Jan 31

Typo and Poor Arithmetic

Page 171: The text currently reads, “”If the arrival aircraft is going 180 knots ground speed, and needs to descend to 8,000 feet at 500 feet per minute, that will require 16 minutes and 42 nautical miles of distance.” It should say that the aircraft is descending 8,000 feet (not TO 8,000) and will require 48 miles of distance, because [8000/500] x 3 is 48 where I went to school.