The RV7 rudder skin is extremely thin : it must be handled with care and also to pay attention to the preparation of aluminum.
The skin is reinforced with stiffeners need to cut through 1/3 of the length , round the edges , being careful to respect the distance edge with the holes.
Once the stiffeners cut & deburred they are adjust with clecos on the skin. Time to drill the holes size 40. The skin is then deburred.
The skin is dimpled.
Stiffeners are dimpled , they are then completely flattened.
The whole is then painted with anti-corrosion.
Same operations with the second part of the skin after a long period of building inactivity due to: – A moving, – Work (some still in progress …) – A major career change.