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Originally posted by Witness2008
reply to post by Zaphod58
Why not do the approaches from the south of the air port where things are a bit more open?
Originally posted by Zaphod58
reply to post by Witness2008
It's not an "excuse" it's a fact. Aircraft have to land and take off as close to nose into the wind as they can. Whichever runway is closest to the wind direction is the runway used that day. If they land or take off downwind then they require much more runway, and may have trouble getting airborne, or stopping. If you have a take off speed of 180 mph, and you have a 30 knot headwind on take off, you only need 150 mph of forward speed to get airborne. Same with landing. You can actually land slower than normal, because of the wind over the wings. That means less runway required for both.
If you have to land or take off at the speed required, due to a tailwind, that means you need a lot more runway, and you don't climb as fast. I've watched downwind take offs where they finally got airborne at twice the normal distance, and by the end of the runway, they were about 200 feet high, as opposed to passing through 8 or 900 feet.edit on 7/3/2013 by Zaphod58 because: (no reason given)
Originally posted by Witness2008
reply to post by Aloysius the Gaul
I see commercial flights coming and going all of the time, and have never seen one fly over the city so low and slow. Ain't buying the wind direction excuse, wasn't much of a wind today.
Originally posted by Aloysius the Gaul
Originally posted by Witness2008
reply to post by Zaphod58
Why not do the approaches from the south of the air port where things are a bit more open?
Wind direction - a runway only has 1 "open" vector at a time, which is determined by wind direction - aircraft takeoff and land into eth wind in order to minimize groundspeed required at various airspeeds.