Flag semaphore signals

The calculator converts english phrase to the flag semaphore signal sequence.

Optical “telegraphs” or signaling devices have been traced back to ancient times (using torches). It was the fastest system to convey messages over long distances.
The semaphore signaling system was designed by Claude Chappe, a French engineer, in the late 18th century. The first semaphore line was established between Paris and Lille in 1793. Then it was adopted to carry despatches between French army units, including those commanded by Napoleon.
Semaphores were adopted and widely used with hand-held flags in the maritime world. Today, the semaphore system uses flags, usually square and divided diagonally into a red and a yellow section with the red in the uppermost triangle.
The calculator below converts English phrase to the flag semaphore signal sequence:

PLANETCALC, Flag semaphore signals

Flag semaphore signals

The file is very large. Browser slowdown may occur during loading and creation.

URL copied to clipboard
Creative Commons Attribution/Share-Alike License 3.0 (Unported) PLANETCALC, Flag semaphore signals