Towered · Class D surface area
Martin State (KMTN) radio calls
Baltimore, MDICAO KMTN · FAA MTN
Martin State is a towered airport in Baltimore, MD. You will taxi with Ground on 121.8 and work Martin Tower on 121.3, after listening to the ATIS on 124.925. The approach control is Potomac Approach on 119.0, which is who you call for VFR flight following. The tower operates 0600-2200 local.
The airport has a Class D surface area: two-way radio communication with the tower must be established before entering. Published hours: CLASS D SVC 0600-2200; OTHER TIMES CLASS E.
Frequencies
| ATIS | 124.925 |
|---|---|
| GroundMartin Ground | 121.8 |
| TowerMartin Tower | 121.3 |
| CTAF | 121.3 |
| UNICOM | 122.95 |
| Approach / DeparturePotomac Approach | 119.0 |
Airport
- Runways
- 15 · 33
- Elevation
- 22 ft
- Tower hours
- 0600-2200 local
- Position
- 39.326, -76.414
Towered airport with a Class D surface area
Sample calls at KMTN
Martin State has a Class D surface area: establish two-way communication with the tower before entering (AIM 3-2-5 b 3). A reply that uses your call sign, even "standby", establishes it; "aircraft calling, standby" does not. The calls below use runway 15; 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.
- Listen to the ATIS on 124.925 first and note the letter; "with Information (letter)" on your first call lets the controller skip the weather (JO 7110.65 3-10-1).
- YouMartin Ground, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, request taxi, VFR departure to the north.
- ATCCessna Six Zero Foxtrot, Martin Ground, runway one five, taxi via Alpha, hold short of runway one five.
- YouRunway one five, taxi via Alpha, hold short of runway one five, Cessna Six Zero Foxtrot.
- 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).
- YouMartin Tower, Cessna Six Zero Foxtrot, holding short runway one five, ready for departure, northbound.
- ATCCessna Six Zero Foxtrot, Martin Tower, runway one five, cleared for takeoff.
- YouRunway one five, cleared for takeoff, Cessna Six Zero Foxtrot.
- ATCCessna Six Zero Foxtrot, contact Potomac Approach one one niner point zero.
- Youone one niner point zero, Cessna Six Zero Foxtrot.
- YouPotomac Approach, Cessna Three One Six Zero Foxtrot, two thousand climbing four thousand five hundred, request VFR flight following to the north.
- ATCCessna Six Zero Foxtrot, Potomac Approach, radar contact, altimeter three zero zero one.
- YouAltimeter three zero zero one, Cessna Six Zero Foxtrot.
- Inbound: call the tower about 15 miles out, before the Class D boundary (AIM 4-3-2 a).
- YouMartin Tower, Cessna Three One Six Zero Foxtrot, one five miles north, three thousand, with Information Bravo, landing Martin.
- ATCCessna Six Zero Foxtrot, Martin Tower, enter left downwind runway one five, report midfield downwind.
- YouEnter left downwind runway one five, report midfield, Cessna Six Zero Foxtrot.
- YouMartin Tower, Cessna Six Zero Foxtrot, midfield left downwind, runway one five.
- ATCCessna Six Zero Foxtrot, runway one five, cleared to land, wind two seven zero at eight.
- YouRunway one five, cleared to land, Cessna Six Zero Foxtrot.
- 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).
- ATCCessna Six Zero Foxtrot, exit at the next taxiway, contact Martin Ground one two one point eight.
- YouExit next taxiway, one two one point eight, Cessna Six Zero Foxtrot.
- YouMartin Ground, Cessna Six Zero Foxtrot, clear of runway one five, taxi to the ramp.
If things change. The tower operates 0600-2200 local. Outside those hours the airport is a non-towered field: self-announce on the CTAF, 121.3 with the airport name first and last, and the surface area reverts to Class E or Class G as published in the Chart Supplement.
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; 3-2-5 b 3; 4-3-2 a. What TowerTalk grades against →
The calls you will make here
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Frequencies, runways and airspace from the FAA National Airspace System Resources (NASR) 28-day subscription, cycle effective Sep 3, 2026. Training use only. Always verify against a current Chart Supplement and sectional chart before flight; frequencies change. TowerTalk is not affiliated with the FAA. Report a discrepancy.
