United States Alaska VFR Sectional Charts VFR Terminal Area Charts Helicopter Route Charts IFR Enroute High Charts IFR Enroute Low Charts IFR Area Charts
Seattle Sectional Chart Great Falls Sectional Chart Billings Sectional Chart Twin Cities Sectional Chart Green Bay Sectional Chart Lake Huron Sectional Chart Montreal Sectional Chart Halifax Sectional Chart Klamath Falls Sectional Chart Salt Lake City Sectional Chart Cheyenne Sectional Chart Omaha Sectional Chart Chicago Sectional Chart Detroit Sectional Chart New York Sectional Chart San Francisco Sectional Chart Las Vegas Sectional Chart Denver Sectional Chart Wichita Sectional Chart Kansas City Sectional Chart St. Louis Sectional Chart Cincinnati Sectional Chart Washington Sectional Chart Los Angeles Sectional Chart Phoenix Sectional Chart Albuquerque Sectional Chart Dallas - Ft Worth Sectional Chart Memphis Sectional Chart Atlanta Sectional Chart Charlotte Sectional Chart El Paso Sectional Chart San Antonio Sectional Chart Houston Sectional Chart New Orleans Sectional Chart Jacksonville Sectional Chart Brownsville Sectional Chart Miami Sectional Chart Atlanta Terminal Area Chart Baltimore - Washington Terminal Area Chart Boston Terminal Area Chart Charlotte Terminal Area Chart Chicago Terminal Area Chart Cincinnati Terminal Area Chart Cleveland Terminal Area Chart Dallas - Ft Worth Terminal Area Chart Denver Terminal Area Chart Detroit Terminal Area Chart Houston Terminal Area Chart Kansas City Terminal Area Chart Las Vegas Terminal Area Chart Los Angeles Terminal Area Chart Memphis Terminal Area Chart Miami Terminal Area Chart Minneapolis - St Paul Terminal Area Chart New Orleans Terminal Area Chart New York Terminal Area Chart Philadelphia Terminal Area Chart Phoenix Terminal Area Chart Pittsburgh Terminal Area Chart St. Louis Terminal Area Chart Salt Lake City Terminal Area Chart San Diego Terminal Area Chart San Francisco Terminal Area Chart Seattle Terminal Area Chart Tampa Terminal Area Chart Orlando Terminal Area Chart Colorado Springs Terminal Area Chart Grand Canyon VFR Chart Enroute L-1 Enroute L-2 Enroute L-3 Enroute L-4 Enroute L-5 Enroute L-6 Enroute L-7 Enroute L-8 Enroute L-9 Enroute L-10 Enroute L-11 Enroute L-12 Enroute L-13 Enroute L-14 Enroute L-15 Enroute L-16 Enroute L-17 Enroute L-18 Enroute L-19 Enroute L-20 Enroute L-21 Enroute L-22 Enroute L-23 Enroute L-24 Enroute L-25 Enroute L-26 Enroute L-27 Enroute L-28 Enroute L-29 Enroute L-30 Enroute L-31 Enroute L-32 Enroute L-33 Enroute L-34 Enroute L-35 Enroute L-36 Enroute H-12 Enroute H-1 Enroute H-2 Enroute H-3 Enroute H-4 Enroute H-5 Enroute H-6 Enroute H-7 Enroute H-8 Enroute H-9 Enroute H-10 Enroute H-11 Atlanta Area Chart Chicago Area Chart Denver Area Chart Detroit Area Chart Dallas - Ft. Worth Area Chart Jacksonville Area Chart Kansas City Area Chart Los Angeles Area Chart Miami Area Chart Minneapolis - St. Paul Area Chart Phoenix Area Chart San Francisco Area Chart St. Louis Area Chart D.C. Area Chart New York Helicopter Chart Inset Boston Helicopter Chart Inset D.C. Helicopter Chart Inset Dallas Helicopter Chart Inset Salt Lake City Helicopter Chart Inset Ogden Helicopter Chart Inset New York Helicopter Chart Long Island Helicopter Chart Boston Helicopter Chart D.C. Helicopter Chart Baltimore Helicopter Chart Detroit Helicopter Chart Chicago Helicopter Chart Dallas Helicopter Chart Houston Helicopter Chart Los Angeles Helicopter Chart West Los Angeles Helicopter Chart East Salt Lake City Helicopter Chart Ogden Helicopter Chart Anchorage Sectional Chart Bethel Sectional Chart Cape Lisburne Sectional Chart Cold Bay Sectional Chart Dawson Sectional Chart Dutch Harbor Sectional Chart Fairbanks Sectional Chart Juneau Sectional Chart Ketchikan Sectional Chart Kodiak Sectional Chart McGrath Sectional Chart Nome Sectional Chart Point Barrow Sectional Chart Seward Sectional Chart Western Aleutian Islands Sectional Chart West Western Aleutian Islands Sectional Chart East Whitehorse Sectional Chart Fairbanks Terminal Area Chart Anchorage Terminal Area Chart Alaska Enroute L-3 Alaska Enroute L-4 Alaska Enroute L-1 Alaska Enroute L-2 East Alaska Enroute L-2 Central Alaska Enroute L-2 West Alaska Enroute H-1 Alaska Enroute H-2 Nome Area Chart Fairbanks Area Chart Anchorage Area Chart Juneau Area Chart
4 posts / 0 new
Last post
Magnetic variance - East is least?
I am planning a flight that flies in an easterly direction. For example, one of my legs is from KTTA to KHRJ. The true course is 124 however the magnetic course is 132. I would expect an easterly heading to subtract the magnetic variance. Why is it being added?
Magnetic variance
Yes, east is least. But that has nothing to do with the direction you fly. Look at your chart and you will see purple dashed lines that run from the bottom of the chart to the top. These are isogonic lines which will have the variance Marked. For your flight the closest isogonic line is labeled 8W, therefore you need to add 8 to your heading. I hope this explains it.
eshreffler's picture
My first thought was funny question for a 22 nm 'trip'. Anyway I see this for your trip, and it does not make sense. Initial true bearing: 124° Initial magnetic bearing: 133° 9 ° difference. Just looking at a chart in your area, (I am in California), it looks more like a 5° difference, so I am confused, but for a different reason. But east is least and magnetic north is left of true north for you. So you have to travel more° around the circle to find your intended heading. Just look at a VOR in your area on a Sectional to see it visually. ed
dpk1nba's picture
Magnetiuc variation closest