Hi guys, this being my first post if im being silly and asking obvious questions please humour me. I need some help making a mould for this wing. I was thinking a split mould as some parts of the wing tuck under and would be impossible to release. Any advice would be appreciated. Thanks guys

I can't see any locks on the outside of that fender, so it looks like a 2 part mould of the outer and inner skins. 

Ok thanks for that advice, I was thinking as you can see in the 2nd and 3rd pics (I think) there is a lip that  kind of folds in on the wing. I was thinking if I was to make the mould from there it would get stuck. Maybe I'm over thinking but just want to be sure before I start. As for inner skin, I was assuming its just 1 skin as there is no inner parts too it.

Yes those mounting flanges on the inside will be your 'inner skin'. So you'll need to put your barriers along the edge and take a mould of your 'outer skin', the visible outer section of the fender. Then once that has cured and is complete, you remove your barriers and make a mould of the inside of the fender. 

Theres no way at all this could be done in a single mould/skin? it could be possible to so a single skin on other fenders due to manufacturer styles?