I remember a forecast for the likely number of aerial spraying aircraft made in about 1976?
At the time there were around 62 Ag aircraft in the UK.
Based on this fact, it was estimated that there would be 882 (or some sort of number) by the year 2000.
By that time there was...... one Ag aircraft.
Straight line expansion never seems to work - there's always a ..... glitch?
DB
