Centrifugal fan selection software

hello,

I want centrifugal fan selection software,
which provides me fan curves,Drawings,immpler data ,number of blades etc

please tell me wheir can i get thiz software?

Have a look on here http://www.flaktwoods.com/selection-tools/

or this one http://ventaxia.fanselector.co.uk/

or type 'Fan selection software' into Google