Serial Number 1646
Date of Issue: 23 June 2017
Revision - Original
13
Crosswind / Headwind Determination
The crosswind and headwind component chart allows for figuring the headwind and crosswind
component for any given wind direction and velocity.
Sample Problem
Runway..........................................................................17
Wind........................................................140° at 25 knots
First, determine how many degrees difference there is between the runway and the wind direction. It
is known that runway 17 means a direction of 170°; from that subtract the wind direction of 140°. This
gives a 30° angular difference or wind angle. Next, locate the 30° mark and draw a line from there
until it intersects the correct wind velocity of 25 knots. From there, draw a line straight down and a
line straight across. The headwind component is 22 knots and the crosswind component is 13 knots
Figure 1Crosswind Calculation Chart (Source ---FAA Pilot Handbook Of Aeronautical Knowledge)
Supporting Documentation