There is no usual response to “Roger" or “Wilco". They mean “I hear and understand" and “I hear and will comply," respectively.
"Wilco" is short for the phrase "will comply," meaning that the speaker will follow the instructions to which they are replying. Merriam-Webster places the origin at 1938, some time after the invention of radio, likely in military usage.
To indicate a message had been heard and understood—that is, received—a service-person would answer Roger, later expanded to Roger that, with that referring to the message. In military slang, the phrase Roger wilco conveyed the recipient received the message and will comply with its orders, shortened to wilco.
Wilco - I have received your message, understand it and will comply. Ninety-Nine – Indicates that an aircraft emergency is in progress and that all vehicles must maintain radio silence and give way to emergency vehicles.
"Wilco": Literally means "will comply" and indicates that the speaker is intending to complete the task that's been asked of them.
10-4 is an affirmative signal: it means “OK.” The ten-codes are credited to Illinois State Police Communications Director Charles Hopper who created them between 1937–40 for use in radio communications among cops. Ten-Four Day ~ for decades, Oct 4 has been a day to salute radio operators. pic.twitter.com/zpsDNPtorQ.
If all the other person says is, “10-4,” you don't need to say anything. You can say, “10-4, over” if you'd like to let them know you're done speaking if you'd like.
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.
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.
"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.
especially in communication by radio, used to say that you agree to do what is asked: Wilco. Over and out. "Will you do that?" "Yes, wilco."
It may not be obvious from this list that the old cliche “Over and out” is just wrong. It's either “over” or “out”. Similarly, “Roger Wilco” is silly. Roger means “I heard and understood you” (but might not do what you say) whereas “wilco” means “I heard and understood you and will do what you request.”
Pilots use the term "wilco" as an abbreviated way of telling controllers they will execute the instruction given to them. You generally hear it in response to a follow-up request made by a controller.
"Roger that" is a slang phrase to confirm or acknowledge what someone has told you. It is the same as saying "Yes" or "OK".
The North Atlantic Treaty Organization said this early version was used by the Army and Navy. Radio operators would say “Roger” or “Roger that” to stand for the letter R and tell the sender the message was received. Roger wilco would mean, received and will comply.
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.
Four Stripes insignia is worn by the captain; the one ultimately in charge of the safety and operations of the flight. Airline companies have the freedom to choose any design or color scheme they might fancy for their uniforms. Interestingly, the next person who will be wearing these stripes could be you!
V1 is the maximum speed at which a rejected takeoff can be initiated in the event of an emergency. V1 is also the minimum speed at which a pilot can continue takeoff following an engine failure.
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.
Since much of the air traffic at the time was between Croydon and Le Bourget Airport in Paris, he proposed the term "mayday", the phonetic equivalent of the French m'aidez ("help me") or m'aider (a short form of venez m'aider, "come [and] help me"). The term is unrelated to the holiday May Day.
Squawking 7700 will allow ATC to prepare for a quick landing, allowing controllers to inform nearby aircraft and clear any runways needed, as well as inform the authorities of any other support necessary (such as fire services or an ambulance). Having such a code available is very useful.
"Rubber Duck" – The first vehicle in a convoy. "Rubbernecker" – Vehicles that further slow down or impede already congested traffic by rotating their heads 180 degrees to view the accident or traffic incident and not paying attention to the road ahead.
Roger that" and "copy that" have the same meaning. They generally mean "I understand what you just conveyed to me" or "I understand what you said". Both of these phrases are typically used over radio transmutations, such as for the military or aircraft.
10-63 Prepare to Receive an Assignment. 10-64 Crime in Progress. 10-65 Armed Robbery. 10-66 Notify Medical Examiner. 10-67 Report of Death.