Gramaisc
Forum O. G.
Currently one on eBay - http://www.ebay.co.uk/itm/Gibson-Gi...645657?hash=item3d15bbf959:g:s04AAOSwxcRW-XV-A friend, back in my school days had a box kite, an ex RAF/army one. He told me they were used as a distress/signalling device and there design allowed them to fly in almost any weather. I never checked this fact but it sounded plausible at the time.
http://www.thekitesociety.org.uk/PDF/Gibson Girl.PDF