Calaveras Power Station Helipad HeliportPrivate

21XA · San Antonio, TX · 504 ft elevation · Non-towered

Overview Weather Runways Comms & NavAids Charts Services & info

Airport information

FAA LID: 21XA
Coordinates: 29.3027, -98.3239
Elevation: 504 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

Weather

METAR observed

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TAF forecast

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Sun & FAA night 2026-06-23

Event	Local (CDT)	UTC
Morning civil twilight Loggable night ends	06:08 AM	11:08Z
Sunrise	06:35 AM	11:35Z
Sunset	08:36 PM	01:36Z
Evening civil twilight Loggable night begins	09:03 PM	02:03Z

Loggable night (§1.1)

09:03 PM → 06:08 AM

Night currency (§61.57)

09:36 PM → 05:35 AM

Plan a flight from 21XA

Destination (ICAO)

TAS (kt)Burn (gph)Reserve (hr)Wind from (°)Wind (kt)

Runway H1/

42 ft · Concrete

Heading: n/a
Threshold elev: 505 ft
Traffic pattern: Left

Heading: n/a

Headings shown are true (magnetic variation unavailable).

Will it fit? Your aircraft's required runway length (from the POH) — checked against every runway here

ft · ≥1.5× comfortable, under 1.25× tight · saved across airports

Runway	Length	Your margin
H1/	42 ft

Nearby navigation aids

NavAid	Type	Freq	Radial / Dist magnetic
SSF · Stinson	VOR	108.40	r058° / 6.8 NM
RND · Randolph	VORTAC	112.30	r180° / 13.2 NM
DHK · Randolph	TACAN	109.90	r183° / 14.4 NM
KSY · Kelly	TACAN	112.00	r105° / 14.5 NM
SAT · San Antonio	VORTAC	116.80	r153° / 21.7 NM

VFR sectional

Open 21XA on the VFR sectional (SkyVector) ↗

No published instrument procedures or Chart Supplement for 21XA. VFR sectional link above.

Ownership & management

Owner

CPS ENERGY

145 NAVARRO ST, SAN ANTONIO, TX

210-353-2539

Manager

GEORGE WILBORN

145 NAVARRO ST, SAN ANTONIO, TX

210-353-2669

Remarks FAA

Contact

GWILBORN@CPSENERGY.COM

Nearby airports

28TE · Midlake AirportPrivate (2 NM)24XA · Cross-B AirportPrivate (3 NM)6XS9 · Harmony FieldPrivate (3 NM)09XA · Braunig Emergency Helicopter Landing FacilityHeliportPrivate (4 NM)2TX1 · Russell Paradise AirportPrivate (5 NM)US-3190 · Mission Trail Baptist Hospital HelipadHeliport (6 NM)

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.

About 21XA

Calaveras Power Station Helipad (21XA) is a heliport in San Antonio, TX, at 504 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 on the Comms & NavAids tab.

What is the longest runway at 21XA?

Calaveras Power Station Helipad has 1 runway; the longest is 42 ft. See the Runways tab for headings, surface, and lighting.

Where is 21XA?

Calaveras Power Station Helipad is in San Antonio, TX, at an elevation of 504 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.

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