Calaveras Power Station Helipad HeliportPrivate
21XA · San Antonio, TX · 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 08:46 PM
| Event | Local (CDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:31 AM | 11:31Z |
| Sunrise | 06:57 AM | 11:57Z |
| Sunset | 08:21 PM | 01:21Z |
| Evening civil twilight Loggable night begins | 08:46 PM | 01:46Z |
Plan a flight from 21XA
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/ | 42 ft |
Prefer one flat page? Full runway details for 21XA → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 21XA kneeboard →
Comms & NavAids
Nearby navigation aids
SSF 108.40 · RND 112.30 · DHK 109.90 · +2
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| SSF · Stinson | VOR | 108.40 | Low | r064° / 6.8 NM |
| RND · Randolph | VORTAC | 112.30 · 70X | Terminal | r184° / 13.2 NM |
| DHK · Randolph | TACAN | 109.90 · 36X | — | r187° / 14.4 NM |
| KSY · Kelly | TACAN | 112.00 · 57X | — | r108° / 14.5 NM |
| SAT · San Antonio | VORTAC | 116.80 · 115X | High | r153° / 21.7 NM |
Charts & procedures
No published instrument procedures or Chart Supplement for 21XA — open it on the VFR sectional →
Airport info
Airport information
- FAA LID
- 21XA
- Coordinates
- 29.3027, -98.3239
- Elevation
- 505 ft MSL
- Sectional chart
- SAN ANTONIO
- Airport use
- Private
- Control tower
- No
- ARTCC
- HOUSTON (ZHU)
- Flight service (FSS)
- SAN ANGELO · 122.2 · 1-800-WX-BRIEF
- Attendance
- UNATNDD
- Segmented circle
- No
- Activated
- 2021/09
- Distance from city
- 6 NW
Ownership & management 2 contacts
Remarks FAA · 1 notes
Contact
- GWILBORN@CPSENERGY.COM
Nearby airports
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Also nearby: 28TE Midlake Airport (private) (2 NM) · 24XA Cross-B Airport (private) (3 NM) · 6XS9 Harmony Field (private) (3 NM) · 09XA Braunig Emergency Helicopter Landing Facility (private) (4 NM) · 2TX1 Russell Paradise Airport (private) (5 NM) · XS84 Department of Public Safety Heliport (7 NM)
About 21XA
Calaveras Power Station Helipad (21XA) is a heliport in San Antonio, TX, at 505 ft MSL. It has 1 runway, the longest 42 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 21XA, refreshed from the Aviation Weather Center and FAA NASR.
Does 21XA have a control tower?
No. Calaveras Power Station Helipad is a non-towered (pilot-controlled) heliport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 21XA?
Calaveras Power Station Helipad has 1 runway; the longest is 42 ft. See the Runways section for headings, surface, and lighting.
Where is 21XA?
Calaveras Power Station Helipad is in San Antonio, TX, at an elevation of 505 ft MSL. Coordinates: 29.3027, -98.3239.
Fly out of 21XA often?
Save 21XA 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 21XA 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.