Mods if this has been done before the bin it. While in the garden yesterday my peaceful afternoons gardening was enhanced by the sudden sound and sight of a Hurricane turning on its wing tip right over my head. No idea where he came from or was going , we live miles from the nearest airfield. The sound of the Merlin gave me goose bumps and set me thinking- What is the most evocative sound for you ? Mill or non Mill , machine or nature , whatever do's it for you. Mine- All time - The sound of the RR Merlin , remember a good few years ago being on a job at Odiham , amongst all the noise came the sound of Merlins, looked up and there overhead was the Mosquito , simply awsome. Mill- The sound of a woka-woka as it flies towards you at zero feet Non Mill- The sound of a pack of wolves calling to each other on a cold crisp night seemingly meters from me . Would like to have heard - The above mentioned Mossie at full throttle in pursuit of a German night fighter on a warm clear summers evening just as everything else settled down for the night, the way sound travels on those warm summers nights would make the sound of the merlin almost pure music .