Does an aircraft travel in a straight line?

[A Squared]

Colored airways? What did I miss?

Well, If that's a serious question, colored airways are the old low/medium frequency airways which used NDBs and the older A-N beacons. You'll still find then in Alaska, Canada, the Carribean, and other parts of the world. THey were named by colors. Blue 22, Amber 34, Red 99.

If you were just playing along with hte joke, I apologize for being obtuse