ams511
Contributor
The pinch flat is caused by something hard hitting the wing, usually a plate or a tank. As I mentioned in a previous post, DSS wings are fragile. The outer shell was very flexible and the inner shell was a thin urethane (a thicker urethane was used latter). One of the selling points of the DSS system is how easy it is to disassemble the rig and transport or store the wing separate from the plate. This is to avoid pinch flats.
Most modern wings has since switched to using a more durable outer shell and a nylon inner shell. So pinch flats are less of an issue.
