LOW-LEVEL AND TACTICAL FORMATION
instance, only new CHUM since January 2002. Obviously, this option can only help you if the
last CHUM was recorded on the chart you checked out.
The CHUM listed on ECHUM doesn't include power lines unless
specific conditions are met. After using ECHUM, you MUST use
the CHUM manual to plot the power lines. These are very
important, especially when chumming hilly areas (a power line can
extend into valleys at the altitude you will be flying).
Additionally, if plotted correctly, they can help immensely in
Take some time to explore the NIMA homepage. It provides many
services to include imagery that can be very helpful for getting
familiar with run-ins and DZs. Also, two other websites that
students have found helpful are http://www.monkeyplan.com and
http://www.baseops.net. These are private websites tailored to
From Monkeyplan, click on the ECHUM link.
Select the flight corridor query link.
Enter the number of points along the route to include the starting point up to the escape
Enter a 22 NM radius to determine ESA.
Click on the "Restrict Search Results" link and enter the type of chart you are using.
Enter the latitude and longitude of each point. Watch out for putting extra zeros in front of
the numbers. Additionally, enter the minutes instead of decimal points (for example, .7 minutes
is 42 seconds).
Be sure the check the ECHUM chart date at the top of the chumming points to ensure the
chart you are using is current.
D-4 FLIGHT PREPARATION