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

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.