Transportation Safety Board of Canada
www.bst-tsb.gc.ca
AVIATION Reports - 1998 - A98H0003
1.7.4 Upper Level Wind (STI1-47)
The wind at FL330 was from 210 degrees True at 65 knots, providing a ground speed for SR 111 of about 530 knots or nearly 9 nm per minute. The tailwind decreased during the descent, and diminished to about 13 knots from 200 degrees True at 10 000 feet.
