Wing construction
Start to finish of wing construction.
Ribs and false ribs were laser cut from 6.5 mm birch plywood. The aerofoil used is the Gottingen 436 flat bottomed aerofoil. These were epoxy adhesive glued (Epidermix 372) to the aluminium spars along with the two carbon false spars.
Aluminium angle iron was welded to the front spars to add strength against yielding. Only 6063 aluminium could be sourced locally (6061 generally used for aircraft and much stronger) and thus needed to be reinforced. They were offset by 4 degrees to accommodate the wing incidence angle of 4 degrees.
Lastly the ribs were sealed with a wood sealer.
