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Pilots: How To Determine Runway Stength  
User currently offlineSailorOrion From Germany, joined Feb 2001, 2058 posts, RR: 5
Posted (12 years 2 months 2 weeks 3 days 13 hours ago) and read 3827 times:

Hello to all people who actually fly planes out there, I got a question:

When flying to or from some airport, how do you determine the maximum weight the runway can bear for your aircraft? Do you use PCN/ACN data or are there other means? I'm asking because for exsample the PCN data for KJFK (from http://www.worldaerodata.com) collides with the maximum weight for a 747 configuration, from http://www.airnav.com and I'm pretty lost.

It'd be great if someone could shed some light into this.


4 replies: All unread, jump to last
User currently offlineSaintsman From United Kingdom, joined Mar 2002, 2065 posts, RR: 2
Reply 1, posted (12 years 2 months 2 weeks 3 days 13 hours ago) and read 3805 times:

More important than runways are the taxiways. You also have to take into account the width, especially with wide bodied aircraft, because the undercarriage is so far apart you have to make sure that the taxiway edges are strong enough to spread the load.

User currently offlineSlamClick From United States of America, joined Nov 2003, 10062 posts, RR: 66
Reply 2, posted (12 years 2 months 2 weeks 3 days 4 hours ago) and read 3542 times:

The "green book" of the NOS FLIP publications gives load bearing data for the runways. When planning a large airplane charter into an offline airport I would always start with this. Next step is a call to the airport manager's office which will have load bearing, width and turn radius on all taxiways and a bunch of other information I will need.

Butler Aviation in Reno once had an asphalt taxiway poured for access to their ramp which was just south of the airline terminal ramps. As soon as the barricades were removed the first plane taxiied across this 12500 lb-rated taxiway. It was an Alaska Airlines B-727-200

Happiness is not seeing another trite Ste. Maarten photo all week long.
User currently offlineL-188 From United States of America, joined Jul 1999, 30408 posts, RR: 57
Reply 3, posted (12 years 2 months 2 weeks 2 days 23 hours ago) and read 3460 times:

Well, airliners don't do this but skiplane landing on lakes will make one pass dragging their skis on the surface and then go around. On the second pass the look at the tracks and see if there are any changes in the coloration.

What has happened when this has occured is that the ice underneath it cracked and the water is now comming up through the cracks and changing the color of the snow.

Definately don't land there, because once the airplane puts all of it's weight on the ice is will go through.

User currently offlineMr.BA From Singapore, joined Sep 2000, 3423 posts, RR: 20
Reply 4, posted (12 years 2 months 2 weeks 2 days 19 hours ago) and read 3421 times:

Pardon me for going a little off topic, but how do pilots determine the 'braking action' of the runway? I've heard tower asking for this when the runway it's wet.


Boeing747 万岁!
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