Port Smith Heliport HeliportPrivate
4MT5 · Helena, MT · Non-towered
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Weather
METAR observed
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TAF forecast
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Sun & FAA night2026-08-07 · night begins 09:25 PM
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:40 AM | 11:40Z |
| Sunrise | 06:15 AM | 12:15Z |
| Sunset | 08:51 PM | 02:51Z |
| Evening civil twilight Loggable night begins | 09:25 PM | 03:25Z |
Plan a flight from 4MT5
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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Full reports: nearest reporting station
Advisories
Airspace hazards
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Runways
Headings shown are true (magnetic variation unavailable).
| Runway | Length | Your margin |
|---|---|---|
| H1/H1 | 45 ft |
Prefer one flat page? Full runway details for 4MT5 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 4MT5 kneeboard →
Comms & NavAids
Nearby navigation aids
HLN 117.70
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| HLN · Helena | VORTAC | 117.70 · 124X | High | r030° / 7.8 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for 4MT5 — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- 4MT5
- Coordinates
- 46.7034, -111.8273
- Elevation
- 4,020 ft MSL
- Sectional chart
- GREAT FALLS
- Airport use
- Private
- Control tower
- No
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS · 122.3 · 1-800-WX-BRIEF
- Segmented circle
- No
- Activated
- 2020/05
- Distance from city
- 12 NE
Ownership & management 2 contacts
Remarks FAA · 1 notes
Contact
- PSMITH@MT.GOV
Nearby airports
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Also nearby: MT63 Dog Leg Airport (private) (7 NM) · 40MT Silver Creek Airport (private) (10 NM) · MT35 St Peters Health Heliport (private) (10 NM) · 39MT Flying E Ranch Airport (private) (11 NM) · MT15 Fort Harrison Army Airfield (private) (13 NM)
About 4MT5
Port Smith Heliport (4MT5) is a heliport in Helena, MT, at 4,020 ft MSL. It has 1 runway, the longest 45 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 4MT5, refreshed from the Aviation Weather Center and FAA NASR.
Does 4MT5 have a control tower?
No. Port Smith Heliport is a non-towered (pilot-controlled) heliport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 4MT5?
Port Smith Heliport has 1 runway; the longest is 45 ft. See the Runways section for headings, surface, and lighting.
Where is 4MT5?
Port Smith Heliport is in Helena, MT, at an elevation of 4,020 ft MSL. Coordinates: 46.7034, -111.8273.
Fly out of 4MT5 often?
Save 4MT5 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 4MT5 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.