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.
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.
The listening station reports these numbers separated with the word "by". "Five by five" therefore means a signal that has excellent strength and perfect clarity — the most understandable signal possible.
Stay on the local ground frequency while performing your engine run-up and pre-takeoff checklist. “Tower, (your call sign,) ready at Runway XX.” Example: “Columbus Tower, Cessna 527 Tango Mike, ready at Runway 23.” Or, “Tower, (your call sign,) holding short of Runway XX.”
Why do air traffic controllers say tree instead of three? 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.
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.
10-4 is a way of saying “message received” in radio communications. It's also used as a way to “you got it.”
Charlie-Charlie is a fancy substitution for a standard affirmative. It comes from the convention of abbreviating Correct/Yes by letter C in codes. It was early standardized and used at sea since 1857.
Many letters and phrases sound too similar, for example, the letters "p" and "b" may sound the same over the radio. So instead, pilots would say "papa" or "bravo". The pilots just transmitted R in order to let the ground units know that they received the message.
Betting parlance for even odds, i.e. betting five pounds (dollars, etc.) should win you ten.
Radio operators give a subjective scale from one to five for the strength of a signal and its clarity. "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.
adjective Slang: Facetious. short and fat.
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.
Readability is confirmed using the scale of 1–5 to relate to levels of understanding to include: 1–unreadable, 2–readable now and then, 3–readable with difficulty, 4–readable, and 5–perfectly readable. Strength assesses how strong the radio signal is being received.
"Fox" is short for "foxtrot", the NATO phonetic designation for the letter "F", which is short for "fire". The radio call announcing that a weapon has been fired is intended to help avoid friendly fire, alerting other pilots to avoid maneuvering into the path of the munition.
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.
The ICAO Phonetic Alphabet is meant to decrease risk and misunderstanding and improve communication between those involved in air travel. Many letters and phrases sound too similar, for example, the letters “p” and “b” may sound the same over the radio. So instead, pilots would say “papa” or “bravo”.
"Roger" was "phonetic" for "R" (received and understood". In radio communication, a "spelling alphabet" (often mistakenly called a "phonetic alphabet) is used to avoid confusion between similarly sounding letters. In the previously used US spelling alphabet, R was Roger, which in radio voice procedure means "Received".
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.
The "Before Takeoff" checklist is divided into two parts: "Down to the line" (or "Above the line") means before "ATC Takeoff Clearance". "Below the line" means after T.O. clearance (when lined up) but before starting the roll.
Angels - Altitude in thousands of feet. "Angels two-five" means 25,000 feet. Angle of attack - The angle at which an aircraft wings meet the air stream. Despite the word "attack," it is not related to weapons, and applies to all aircraft.
The callout from the pilots like "LOC blue" serves to remind themselves of the current flight guidance modes, and to maintain awareness of mode changes. This is also to ensure that their mental idea of "what the aircraft will do next" is up to date and fits to the current flight situation.
A yoke, on the other hand, is easily recognized as the control wheel of the aircraft. It's the traditional form of the joystick used as leverage to control the attitude of the plane. Yokes work by mechanical-driven system in which they are directly connected to the control surfaces with cables and rods.