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philbrown

Navigraph Runway Alignment

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Why are the runways aligned exactly to the runway number ie runway 24 heading 240. At Heathrow, the runways are 5 degrees off (so runway 27L is actually heading 275), but the white runway markers are aligned 270. I have found this at all the airports where the runway is not exactly aligned with its corresponding number.

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Are you talking FS2004?FS2004 used data from about October 2002 for runways and such.Rwy 09L/27R at EGLL is at 89.690/ 269.690 degrees true - 92.7/ 272.7 magnetic.Rwy 09R/27L at EGLL is at 89.700/ 269.70 degrees true - 92.7/ 272.7 magnetic.Newer airport information data would certainly have the runways at different headings due to changes in the magnetic variation.

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According to the latest UK AIP for Heathrow (18 Jan 07):RWY 09L is 089.67* TrueRWY 27L is 269.71* TrueRWY 09R is 089.68* TrueRWY 27L is 269.72* TrueMag Var is W2.3* (2006) - 0.14* decreasing

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