With so many fans over so many years, Flebu has learnt a thing or two about designing and producing the best fan for the job. This experience is netted down into a unique specification programme, which forms the basis for design work and performance calculations. All criteria, including application, severity of duty, weight and material requirements, need for special coatings, etc. are entered into the programme to produce detailed fan specifications, fan performance and motor power curves, sound predictions, scaled 2D/3D drawings and cost estimates. These are reviewed and adjusted where necessary to ensure that customers receive the optimum solution tailored to the precise requirements of the job.