[dmcquinn]

Here's the vacuum bagging process. I used 6 pounds per sq inch of vacuum. Balsa skins are from 1/16 contest balsa (7 lb density). Before bagging, I put on the front and rear caps (also 1/16 balsa). This process is much like the sailplane builders make a wing. Also used in large scale aerobatic planes. I like the polyurethane glues (e.g. gorilla glue or Elmers Ultimate) for connecting the balsa sheeting the foam core.