The phrase "five by five" can be used informally to mean "good signal strength" or "loud and clear". An early example of this phrase was in 1946, recounting a wartime conversation. The phrase was used in 1954 in the novel The Blackboard Jungle.
From radio communications phrase dating from the 1950s. The first five referred to a rating of signal clarity, the other to reception strength. See Signal strength and readability report.
A 5x5 self storage unit is 5 feet wide and 5 feet long, totaling 25 square feet — comparable to a large closet.
Particularly in the realms of film and television, you can sometimes hear pilots using the word 'roger' as part of their radio transmissions.
A response of ROGER is shorthand for the prowords LOUD AND CLEAR. A response of WEAK BUT READABLE ("WEAK READABLE" is also used) indicates a weak signal but I can understand. A response of WEAK AND DISTORTED indicates a weak signal and unreadable.
Klick is a term used by the military to denote one kilometer or 1,000 meters, 0.6214 miles or 3,280.84 feet.
During World War I, the term was used by Marines as they complained about tasks as “grunt work.” In World War II, the term “Mud Marines” was more likely used to describe the lowly functions of the Marine Corps infantrymen. However, during the Korean and Vietnam Wars, Marines returned to the status of grunts.
Pan-Pan, short for “possible assistance needed,” is used to communicate an urgent, but not emergency, situation over VHF radio, in the case of aviation, to air traffic control. Examples could include a recreational pilot getting lost, or perhaps needing to climb to a higher altitude to sort a problem out.
Wake turbulence poses a major risk to other aircraft, so pilots and ATC use the term “heavy” in radio transmissions as a reminder that the aircraft's wake may be dangerous to others passing behind or below the flightpath of these larger-mass aircraft.
Aviators often speak “pilot English” to avoid miscommunications over radio transmission. “Tree” for instance, means three, “fife” is the number five and “niner” means nine, says Tom Zecha, a manager at AOPA. The variations stemmed from a desire to avoid confusion between similar-sounding numbers, he says.
What does 10-4 mean? Roger that! 10-4 is a way of saying “message received” in radio communications. It's also used as a way to “you got it.”
Ten-codes, especially "10-4" (meaning "understood") first reached public recognition in the mid- to late-1950s through the popular television series Highway Patrol, with Broderick Crawford. Crawford would reach into his patrol car to use the microphone to answer a call and precede his response with "10-4".
An example RST report for a voice transmission is "59", usually pronounced "five nine" or "five by nine", a report that indicates a perfectly readable and very strong signal. Exceptionally strong signals are designated by the quantitative number of decibels, in excess of "S9", displayed on the receiver's S meter.
"I read you five by five" means the speaker is hearing a voice at full strength and clarity. Faith's expression means that everything is going well.
The term 5X5 is rooted in the communications within military forces through WWII to mean "I understand you perfectly." The first number represented the Signal Strength of a radio communication, and the second number represented the signal clarity on a scale from 1-5 -- 1 being the worst; 5 being the best.
"LOL ("101" in binary is 5 (i.e. LOL))" is the most common definition for 5 on Snapchat, WhatsApp, Facebook, Twitter, Instagram, and TikTok.
So they took "Roger" from the U.S. phonetic alphabet. (In 1957, the English phonetic alphabet changed the R to "Romeo," but by that time, "Roger" was deeply embedded in the minds of pilots.) So, in short, "Roger" means "r" which stands for "received." The word "Roger" means nothing more.
Affirm: Contrary to popular belief, pilots do not say “affirmative” when they mean yes – the correct term is affirm, pronounced “AY-firm.”
During the takeoff roll, the pilot monitoring the displays (PM) will call out the two important speeds: V1 and rotate. This indicates to the pilot flying the aircraft (PF) when they are beyond the safe stopping speed and when to rotate the aircraft into the air.
History. The "mayday" procedure word was conceived as a distress call in the early 1920s by Frederick Stanley Mockford, officer-in-charge of radio at Croydon Airport, England. He had been asked to think of a word that would indicate distress and would easily be understood by all pilots and ground staff in an emergency.
Squawking 7700 in an emergency
The most well know of these is the code 7700. This is used to indicate an emergency of any kind. A pilot will enter this when in an emergency situation - either instructed by ATC after declaring an emergency or without communication if there is no time.
Mayday: it's the international signal for an emergency made by planes and boats which use radio communications, which was recently used on Qantas flight QF144 from Auckland to Sydney, which ended up landing safely.
As of 2006, women made up 4.3 percent of Marine officers and 5.1 percent of the Corps' active duty enlisted force. Today, they are no longer referred to as "female Marines." They are, simply, Marines.
However, “Semper Fi” (as it's yelled, cheered, or used as a greeting) is not just a motto for the Marines – it's a way of life. The phrase is Latin for “Always Faithful” and it embodies the Marine Corps' forever commitment to both their fellow Marines and the United States.
In the United States, these cadences are sometimes called jody calls or jodies, after Jody, a recurring character who figures in some traditional cadences; Jody refers to the person with whom a servicemember's significant other cheats while they are deployed.