Quantcast Updating Charts for Tower and Obstructions

 

Click here to make tpub.com your Home Page

Page Title: Updating Charts for Tower and Obstructions
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 



CHAPTER 7
AIR FORCE T-38 TRACK INTERMEDIATES
704.
UPDATING CHARTS FOR TOWERS AND OBSTRUCTIONS
The National Imagery and Mapping Agency (NIMA) produces new edition charts every five
years. Unfortunately, details on these areas change much more frequently. So, what is a pilot to
do to find out if a new 1700-foot tower has been built along their planned flight route? NIMA
has thought about this and produces a manual called the CHUM, or Chart Updating Manual.
This publication is published on a semi-annual basis with supplements being produced each
month.
A CHUM update in the manual will look something like this:
Change:
Tower 265-607 to multi towers 31 05 58N
88 13 51W
Add:
Tower, 310-391
31 14 46N
87 44 03W
Find the coordinates on your chart and update them with the new information. Now you are
ready to start plotting your course! But wait, where can I fly this route? Let us look at some
defined, preplanned low level corridors.
705.
AP/1B, IR/VR ROUTES
Military training routes are found in the AP/1B. These are predetermined corridors for low
level military training and come in three flavors: IR, VR, and SR routes. The AP/1B provides
textual and graphic descriptions, and operating instructions for all military training routes, both
low level and air refueling.  Information provided includes type of route, length of route,
direction of flight on the route, entry/exit points, and of course definition of the three main types
of routes.
706.
IR ROUTES
IR routes, or instrument rules routes, must be flown on an IFR flight plan regardless of weather
conditions. Your flight plan must include the entry fix/radial/distance, the route designator, and
the exit fix/radial/distance. You must enter/exit the route via published entry/exit points or
published alternate entry/exit points. You must also have a specific ATC clearance prior to
entering the route.  When on the route you must remain within the confines of the route
corridors, both width and altitude. When practical you should avoid flight within three NM and
1500 feet AGL of airports. IR routes are designed so that specially equipped aircraft may fly
them in IMC/night conditions.
707.
VR ROUTES
VR routes, or visual rules routes, are much less restrictive. You should be on a VFR flight
plan, but are required to only have the fix/radial/distance of your entry point, not the exit point
(unless you intend to get an IFR clearance at the end of your low level). You must still avoid
airports by three NM and 1500 feet AGL and maintain VFR weather minimums.
7-4 T-38 LOW LEVEL NAVIGATION


Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.
6230 Stone Rd, Unit Q Port Richey, FL 34668

Phone For Parts Inquiries: (727) 493-0744
Google +