Braided conductors probably so that they would stretch at least as much as = the towline before breaking. Can't really use radio between planes on a stealth mission. -----Original Message----- From: piclist-bounces@mit.edu On Behalf Of Bob Bl= ick Sent: Friday, June 29, 2018 3:09 PM To: Microcontroller discussion list - Public. Subject: [OT] Tow rope with embedded wires The story I hear is that this rope was used to tow three gliders full of so= ldiers behind a DC-3 over France near the end of WW2. The gliders cut loose= one at a time and had soft(crash) landings behind enemy lines. The rope ha= s three insulated wires embedded in it that were used for communication bet= ween tow plane and gliders. A crazy wartime mission that probably wasn't ve= ry successful. The wires are real strange. At first glance they look like conventional 16g= a stranded power wire, but they are more like insulated coax with no center= conductor, just filler inside the braid. That's all I know. The dollar coin is used for scale, just to confuse every= one. Dollar coins aren't really used very much, except when given to me as = change in my local parking garage :) The rope is about 18mm diameter. Happy Friday, everybody! Bob --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .