Frederick Stanley Mockford, Date of Birth, Date of Death
TweetFrederick Stanley Mockford
British inventor
Date of Birth: 
About Frederick Stanley Mockford
- Mayday is an emergency procedure word used internationally as a distress signal in voice-procedure radio communications. It is used to signal a life-threatening emergency primarily by aviators and mariners, but in some countries local organizations such as firefighters, police forces, and transportation organizations also use the term.
- The call is always given three times in a row ("Mayday mayday mayday") to prevent it being mistaken for some similar-sounding phrase under noisy conditions, and to distinguish an actual mayday call from a message about a mayday call.
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