We were asked to restore the bare aluminum of this super rare 1939 Spartan by it's owner. The aircraft hadn't been totally machine polished for many years, especially the underside. It has taken 3 days and 6 members of staff to machine it to as near a perfect finish as possible. Below is a picture of just how bad the underside was before we hit it with 3 different polishing machines and 3 different compounds. A pure labour of love on our part and although it was hard work, it was worth it!