why do pilots say roger?

Answer 1

Roger is/was used as an abbreviated way of saying "Received" and was adopted in the RAF's phoetic alphabet halfway through World War II.

In the present day phonetic alphabet 'R' is represented by Romeo.

Wilco as an contraction of Will Comply has sod all to do with the phonetic alphabet beit it RAF or not. 'W' in the RAF Phonetic alphabet was "William" and in the current phonetic alphabet is "Whiskey".

Answer 2

From Straight Dope:
Pilots and other military types say “roger” to acknowledge receipt of a message or instructions. “Roger” at one time was the phonetic designation for the letter R, which in turn stood for “received.” Why not just say "received"? From a safety perspective, it makes sense to use standardized language, particularly when dealing with international operations. An American pilot may not understand German, but they both understand aviation terminology. The International Civil Aviation Organization oversees this standardization and disseminates it accordingly.
The use of “roger” isn't all that old. In the military's phonetic alphabet, "roger" didn't become the designation for R until 1927. (Previously the designation had been "rush.") The first citation given by the Oxford English Dictionary for “roger” in the sense of "received" dates from 1941, coinciding with U.S. entry into WWII. The term made the big time in 1943, when the Army Signal Corps incorporated it into one of its procedural manuals.
In 1957 "roger" was replaced by "romeo," the current designation, but by then "roger" = "received" was so entrenched that the brass knew better than to try and change it.
As for the use of “roger, roger” in Phantom Menace, the consensus seems to be that it's a sly (OK, not that sly) reference to Airplane (1980). The co-pilot in the latter movie, played by Lakers legend Kareem Abdul-Jabbar, was named Roger Murdock. This was the pretext for such lines as:
Captain Oveur (Peter Graves): Roger, Roger. What's our vector, Victor?
Variations on this theme include Oveur/over and clearance/Clarence. Trust me, it's pretty funny in the movie.

Answer 3

Roger - message recieved and understood
Wilco - will comply

Answer 4

It is part of the old Royal Air Force phonetic alphabet for R.

(R stands for received.)

Wilco stands for W, which represented Will Comply.

Answer 5

This is highly odd all pilots are called Rodger, hence why they all say it to each other

Answer 6

because Willco will answer this question himself someday soon

Answer 7

how many time has this been asked it means affirmative or yes