ABSTRACT
Since any single property will relate to one or more performance characteristic and vice versa it has been decided to place the whole in the one chapter even though the exercise proves rather extensive. In this respect caution should be exercised that single characteristics and properties are not read out of context. It was emphasised earlier that ‘getting everything right’ results from a combination of technical ‘knowhow’ and the ‘alchemistic’ art of getting all the variables within specified boundary conditions. A superlative attainment in a property often lets a performance characteristic go adrift.
