How runways are called on take off?

[Giselher]

@lieberma

@Giselher

If so, how are the runways referred to on take off? Is it also according to the direction the aircraft will be moving? I.E. an aircraft taking off to the south at BWI on runway 15-33L would be cleared to take off on runway 33L?
If my understanding is correct, is this standard nomenclature?

Remember runway numbers reflect headings. You got it backwards. 33L is heading North West.

Runway numbers remain the same no matter if it’s take off or landing. With that said, take off clearances would include runway number. I.E Sundowner 1943 cleared for take off 33L. I must read back the runway number / assignment to tower when accepting this clearance…

Now you may ask, what if I need to go south when taking off on 33L? If the winds are blowing from the north, I still use 33L per ATC instructions and ATC will vector (direct) me for my headings while in BWI airspace.

Allen

O.K. you are in you plane, the winds are directly from the southeast. Your plane is sitting at the end of the runway 15R-33L. You are at the 15R end and you are going to take off in a southeast direction. Does ATC tell you
“cleared for take off runway 33L” or “cleared for take off runway 15R”?

Now to make it a bit more complicated: Same conditions, except that it is an uncontrolled airport. You are again sitting at the 15R end of the runway and are going to take off to the southeast, following the runway direction. You have to announce your intention to take off to any traffic in the airport vicinity. Do you say “taking off runway 33L” or “take off runway 15R”?

You see the possibility for confusion?