Towered · Class D surface area
Washington Manassas/Harry p Davis Field (KHEF) radio calls
Washington, DCICAO KHEF · FAA HEF
Washington Manassas/Harry p Davis Field is a towered airport in Washington, DC. You will taxi with Ground on 121.8 and work Manassas Tower on 133.1, after listening to the ATIS on 125.175. The approach control is Potomac Approach on 128.525, which is who you call for VFR flight following. The tower operates 0630-2230 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 0630-2230; OTHER TIMES CLASS E.
Frequencies
| ATIS | 125.175 |
|---|---|
| Clearance Delivery | 120.2 |
| GroundManassas Ground | 121.8 |
| TowerManassas Tower | 133.1 |
| CTAF | 133.1 |
| Approach / DeparturePotomac Approach | 128.525 |
Airport
- Runways
- 16L · 34R · 16R · 34L
- Right-hand pattern
- Runway 34R, 16R
- Elevation
- 192 ft
- Tower hours
- 0630-2230 local
- Position
- 38.721, -77.515
Towered airport with a Class D surface area
Sample calls at KHEF
Washington Manassas/Harry p Davis Field 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 16L; 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 125.175 first and note the letter; "with Information (letter)" on your first call lets the controller skip the weather (JO 7110.65 3-10-1).
- YouManassas Clearance, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, VFR to the north, request clearance.
- ATCCessna Six Zero Foxtrot, Manassas Clearance, maintain VFR at or below two thousand five hundred, departure frequency one two eight point five two five, squawk four six one two.
- YouAt or below two thousand five hundred, departure one two eight point five two five, squawk four six one two, Cessna Six Zero Foxtrot.
- YouManassas Ground, Cessna Three One Six Zero Foxtrot, at the ramp with Information Alpha, request taxi, VFR departure to the north.
- ATCCessna Six Zero Foxtrot, Manassas Ground, runway one six left, taxi via Alpha, hold short of runway one six left.
- YouRunway one six left, taxi via Alpha, hold short of runway one six left, 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).
- YouManassas Tower, Cessna Six Zero Foxtrot, holding short runway one six left, ready for departure, northbound.
- ATCCessna Six Zero Foxtrot, Manassas Tower, runway one six left, cleared for takeoff.
- YouRunway one six left, cleared for takeoff, Cessna Six Zero Foxtrot.
- ATCCessna Six Zero Foxtrot, contact Potomac Approach one two eight point five two five.
- Youone two eight point five two five, 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).
- YouManassas Tower, Cessna Three One Six Zero Foxtrot, one five miles north, three thousand, with Information Bravo, landing Manassas.
- ATCCessna Six Zero Foxtrot, Manassas Tower, enter left downwind runway one six left, report midfield downwind.
- YouEnter left downwind runway one six left, report midfield, Cessna Six Zero Foxtrot.
- YouManassas Tower, Cessna Six Zero Foxtrot, midfield left downwind, runway one six left.
- ATCCessna Six Zero Foxtrot, runway one six left, cleared to land, wind two seven zero at eight.
- YouRunway one six left, 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 Manassas Ground one two one point eight.
- YouExit next taxiway, one two one point eight, Cessna Six Zero Foxtrot.
- YouManassas Ground, Cessna Six Zero Foxtrot, clear of runway one six left, taxi to the ramp.
If things change. The tower operates 0630-2230 local. Outside those hours the airport is a non-towered field: self-announce on the CTAF, 133.1 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
Nearby in District of Columbia
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.
