Baltimore/Washington International Thurgood Marshall (KBWI) radio calls

Towered airport inside Class B

Sample calls at KBWI

Baltimore/Washington International Thurgood Marshall sits inside Class B airspace: an explicit ATC clearance is required before entering it (AIM 3-2-3 b), and you will hear "cleared into the Bravo" or you stay out. The calls below use runway 10; the tower assigns the runway in use on the day.

The aircraft is the AIM’s own example, Cessna Three One Six Zero Foxtrot; the squawk codes, altitudes and headings are illustrative. Frequencies, station names and runway numbers are this airport’s, from the FAA data.

1. There is no ATIS frequency in the FAA data for this airport, so ask Ground for the numbers on your first call: they will give the runway, wind and altimeter.
2. YouBaltimore Clearance, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, VFR to the north, request clearance.
3. ATCCessna Six Zero Foxtrot, Baltimore Clearance, maintain VFR at or below two thousand five hundred, departure frequency one one niner point zero, squawk four six one two.
4. YouAt or below two thousand five hundred, departure one one niner point zero, squawk four six one two, Cessna Six Zero Foxtrot.
5. YouBaltimore Ground, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, request taxi, VFR departure to the north.
6. ATCCessna Six Zero Foxtrot, Baltimore Ground, runway one zero, taxi via Alpha, hold short of runway one zero.
7. YouRunway one zero, taxi via Alpha, hold short of runway one zero, Cessna Six Zero Foxtrot.
8. The runway, any clearance onto a runway and every hold-short instruction are read back (AIM 4-3-18 a 9). Stay on Ground through the run-up and switch to Tower when ready (AIM 4-3-14 a).
9. YouBaltimore Tower, Cessna Six Zero Foxtrot, holding short runway one zero, ready for departure, northbound.
10. ATCCessna Six Zero Foxtrot, Baltimore Tower, runway one zero, cleared for takeoff.
11. YouRunway one zero, cleared for takeoff, Cessna Six Zero Foxtrot.
12. ATCCessna Six Zero Foxtrot, contact Potomac Approach one one niner point zero.
13. Youone one niner point zero, Cessna Six Zero Foxtrot.
14. YouPotomac Approach, Cessna Three One Six Zero Foxtrot, two thousand climbing four thousand five hundred, request VFR flight following to the north.
15. ATCCessna Six Zero Foxtrot, Potomac Approach, radar contact, altimeter three zero zero one.
16. YouAltimeter three zero zero one, Cessna Six Zero Foxtrot.
17. Inbound: call the approach control well before the Class B boundary and do not enter until you hear a clearance with the word "cleared" in it (JO 7110.65 7-9-2).
18. YouPotomac Approach, Cessna Three One Six Zero Foxtrot, one five miles north, three thousand five hundred, with Information Bravo, landing Baltimore, request clearance into the Bravo.
19. ATCCessna Six Zero Foxtrot, Potomac Approach, squawk four six one two, cleared into the Bravo airspace, maintain three thousand five hundred, fly heading one eight zero.
20. YouSquawk four six one two, cleared into the Bravo, maintain three thousand five hundred, heading one eight zero, Cessna Six Zero Foxtrot.
21. ATCCessna Six Zero Foxtrot, contact Baltimore Tower one one niner point four.
22. Youone one niner point four, Cessna Six Zero Foxtrot.
23. YouBaltimore Tower, Cessna Six Zero Foxtrot, five miles north, three thousand, with Bravo.
24. ATCCessna Six Zero Foxtrot, Baltimore Tower, enter left downwind runway one zero, report midfield downwind.
25. YouEnter left downwind runway one zero, report midfield, Cessna Six Zero Foxtrot.
26. YouBaltimore Tower, Cessna Six Zero Foxtrot, midfield left downwind, runway one zero.
27. ATCCessna Six Zero Foxtrot, runway one zero, cleared to land, wind two seven zero at eight.
28. YouRunway one zero, cleared to land, Cessna Six Zero Foxtrot.
29. The wind is information: acknowledged, not read back. Exit at the first available taxiway or as told, taxi clear of the hold-short markings, and change to Ground only when the tower says (AIM 4-3-21).
30. ATCCessna Six Zero Foxtrot, exit at the next taxiway, contact Baltimore Ground one two one point niner.
31. YouExit next taxiway, one two one point niner, Cessna Six Zero Foxtrot.
32. YouBaltimore Ground, Cessna Six Zero Foxtrot, clear of runway one zero, taxi to the ramp.

If things change. The tower operates 24 hours. If you cannot raise it, check the frequency and volume, then squawk 7600, remain outside the Class D until you have the traffic flow, and watch for light signals (AIM 4-2-13).

Phraseology from AIM 4-2-3; 4-3-18 a 9; 4-3-14; 4-3-21; 4-4-7 b; 4-1-18 a 3; 3-2-3; JO 7110.65 7-9-2. What TowerTalk grades against →

The calls you will make here

• How to call Ground for taxi →
• Calling the tower inbound →
• Line up and wait, cleared for takeoff, cleared to land →
• Class B transition: asking to cross the Bravo →
• How to request VFR flight following →

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