We’ve all seen the
cockpit scenes (military or commerecial—you pick) where the pilot is screaming
“May day, May day). Is it a quirk that
all these disaster flicks take place on the first day of May?
Oh,
silly, that’s not true but the following fact is accurate in that Mayday as a
cry for help was originated in 1923, by Frederick Stanley Mockford (1897–1962).
A
senior radio officer at Croydon Airport in London, Mockford was asked to think
of a word that would indicate distress and would easily be understood by all
pilots and ground staff in an emergency. Since much of the traffic at the time
was between Croydon and Le Bourget Airport in Paris, he proposed the word
"Mayday" from the French "m'aider", a shortened version of
"venez m'aider" (meaning "come and help me").
While
we’re at it what’s SOS all about?
SOS
is the International Morse code distress signal (dot,dot,dot,dash,dash,dash,dot,dot,dot). The SOS distress
signal is a continuous sequence of three dits, three dahs, and three dits, all
run together without letter spacing. In International Morse Code, three dits
form the letter S, and three dahs make the letter O, so "SOS" became
an easy way to remember the order of the dits and dahs.
This distress signal was first adopted by the German government in radio regulations effective April 1, 1905, and became the worldwide standard under the second International Radiotelegraphic Convention, which was signed on November 3, 1906, and became effective on July 1, 1908.
In
popular usage, SOS became associated with such phrases as "Save Our
Ship" or "Send Out Succour" or "Save our Souls". SOS
is only one of several ways that the combination could have been written; VTB,
for example, would produce exactly the same sound, but SOS was chosen to
describe this combination. SOS is the only nine-element signal in Morse code,
making it more easily recognizable, as no other symbol uses more than eight
elements.
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