Attention! This is an experimental model.
We need to build a structure like the sailing ships: tensile load should take strong rope rigging. For quadrocopters role rigging can perform braid fishing line (see more http://www.spiderwire.com ). For example fishing line 0.4 mm, tensile strength up to 30 kg. This braid fishing line is very flexible in contrast to monofilament line. This quadrocopters strength provided by the rigging of the fishing line plastic only provides a form.