Castle Airport

KMER / MER

Merced, US

KMER (MER) Castle Airport — Charts, Approach Plates & Operations

8 official charts for Castle Airport (KMER / MER) — airport diagrams, instrument approach procedures, SIDs, STARs, and operational information for pilots.

Charts (8) Operations Frequencies Official AIP FAQ

KMER Airport Charts & Approach Plates

Official charts for Castle Airport published by the national aviation authority. Updated every 28 days per AIRAC cycle. All links open the official PDF source in a new tab.

Airport Diagrams 1

Instrument Approach Procedures (IAP) 3

Hot Spots & Warnings 2

Takeoff Minimums 1

Alternate Minimums 1

All charts sourced from official AIP publication. Last updated: April 7, 2026. Always verify with the official AIP before flight.

Airport Operations

Castle Airport operates with tower control 0700-2100 LT, reverting to CTAF when tower closed. Runway 31 is designated calm wind runway, with 180-degree turns prohibited and opposite direction operations not authorized when tower closed. VFR traffic pattern limited to 5 aircraft maximum when tower closed.

Fuel & Services

Fuel Available
Yes
Fuel Types
AVGAS 100LL JET-A JET-A1
Operating Hours
0700-2100 LT (Tower Hours)

Parking & Handling

Landing Fees
No

Published Approach Procedures

ILS OR LOC RWY 31 RNAV (GPS) RWY 13 RNAV (GPS) RWY 31

Special Procedures

RY 13/31 180 DEGREE TURNS PROHIBITED. RY 31 WILL BE THE DESIGNATED CALM WIND RY (WIND 5 KNOTS OR LESS). OPPOSITE END OF RY NOT VISIBLE ON TKOF. WHEN ATCT CLSD OPPOSITE DIRECTION TAKEOFFS AND LANDINGS ARE NOT AUTHORIZED. WHEN ATCT CLSD MAX OF 5 ACFT PMTD IN VFR TFC PAT AT ANY ONE TIME AND 2000 FT CIG AND 3 MIS VIS RCMDD.

PPL / GA Operations

Runway 31 has right traffic pattern. Opposite end of runway not visible on takeoff. When tower closed, pilot-controlled lighting available via CTAF (3 clicks on, 5 clicks increase intensity, 7 clicks off). Civilian and military training may cause pattern congestion. TWY B closed to aircraft greater than 30,000 lbs.

Source: AIP data extracted Apr 7, 2026. Always verify with official AIP before flight. View source

Radio Frequencies

3 frequencies
UNICOM
123.075
MHz
CTAF/UNICOM
A/D
120.950
MHz
NORCAL APP/DEP
AWOS
124.475
MHz
AWO 3
Emergency Frequency
121.500
International Emergency

Usage Instructions:

Tower: Airport traffic control
Ground: Surface movement control
Approach: Terminal area control
ATIS: Automated weather & airport info
• Click any frequency to copy to clipboard
• Always verify frequencies with current charts before flight
• Frequencies may change - check NOTAMs for updates
Data Source: Frequencies are sourced from OurAirports.com, updated daily. Always verify current frequencies using official airport charts, AIP publications, or contact the airport directly. Frequencies may change due to operational requirements or regulatory updates.

Aeronautical Information Publication (AIP)

✓ Free Access
AIP - United States

Official AIP for United States via US FAA (Free)

Managed by: US FAA

Access Information: Freely accessible online
Access details: Public

Alternative Resources:

SkyVector FAA AIP ChartFox

Frequently Asked Questions

How many charts are available for KMER (MER) Castle Airport?

We list 8 official charts for KMER, including airport diagrams, instrument approach procedures (IAP), SIDs, STARs, and visual approaches sourced directly from the official AIP.

Where can I find instrument approach plates for KMER?

All instrument approach procedures (IAP) for KMER (MER) Castle Airport are available on this page, linking directly to the official PDF charts published by the aviation authority. These include ILS, RNAV/GPS, VOR and LOC approaches for all runways.

Are the charts for KMER free?

Yes, all chart links on this page point to official free sources including FAA d-TPP, EUROCONTROL eAIPs, and national aviation authority publications. No subscription required.

How often are charts updated?

Official charts follow the AIRAC cycle and are updated every 28 days. The links on this page always point to the current effective cycle from the official source.