What is a "lifeguard"?
I was reading a transcript from the TWA 800 flight that crashed in New York in '96. They mentioned to tower that were a lifeguard and I am not familiar with what that means.
Also, which planes in the Boeing fleet are referred to as "heavies"? Am I right to assume everything above the 737?
Finally, I know that the 737 has a tiller on the captain's side only. What about the 757/767/747/777?
Thanks very much