Aircraft have developed over the years, particularly through the jet age to fast and furious deterrents which are not the quietest of machines and, during operations or exercises, a fast turn-around or launch is required to get the job completed. Ear defenders were not always available and those provided, not the best restrictor for intense sound. Those of you who have attended air shows will know the noise level generated by fast jets and associated aircraft when flying but, those who have to work in close proximity to get them airborne; the noise is quite ferocious.

Like our sister services, all RAF personnel are expected to be able to use small arms and regularly train with them in preparation for operations and normal annual defence training. This is often carried out with minimal hearing protection which has only just started to be of an acceptable level.