Skinning tutorial request

[major_setback]

I am thinking about starting skinning (aircraft). I have a lot of experience with Photoshop/Elements from my photographic interest; using layers etc. so I don't think the painting/colouring part will be much of a problem. But I would like a simple tutorial to guide me through the basics of skinning, explaining what a 'template' is, and so on.

Can anyone suggest a good skinning tutorial? Preferably one that has been specifically done for CoD.