YoungExecutive
Topic Author
Posts: 7
Joined: Tue Jan 09, 2018 8:34 pm

Weight Bearing Capacity

Tue Apr 10, 2018 8:40 pm

Im trying to understand weight bearing capacity for a presentation I'm putting together. when i search airnav.com for weights on certain runways, the only information I see on weight is under weight bearing capacity. It has single, double, and double tandem numbers, like S - 75.0, D - 161.0, DT - 190. Does that mean single is 75,000 lb, D - 161,000 lb, and DT - 190,000 lb?

Any explanation would help a ton.
Thanks
 
GalaxyFlyer
Posts: 869
Joined: Fri Jan 01, 2016 4:44 am

Re: Weight Bearing Capacity

Tue Apr 10, 2018 9:27 pm

That’s it. US airports use the old methods and it can be less obvious than using a Pavement Classification Number (PCN) and Aircraft Classification Number (ACN) as is done internationally. There, if the ACN is less than the PCN, it’s good. There’s all a problem with tire pressures, that isn’t addressed in the US.

See this, http://code7700.com/acn_v_pcn.htm

GF

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