Aircraft Communications in 1915

A French communication system for use by airplane pilots in 1915: black powder could be puffed out into a Morse code message.
(Image: Scientific American, September 25, 1915)

Many thanks to SWLing Post reader, Robert Gulley, who notes the following on his blog:

I found this interesting post from Scientific American concerning the lack of reliable wireless communication in aircraft in 1915 - just one of those fascinating historical tidbits.

You can read the full post on Robert's website or Scientific American.

It is fascinating to see "old school" innovations that made long distance communications possible in 1915; before wireless technology became as practical and accessible as it was even only a decade later.