San Nicolas Island Nolf Airport Private

NSI · KNSI · San Nicolas Island, CA · Towered · Print kneeboard

Elevation

506 ft MSL

Longest runway

10,002 ft 12/30

Runway

Mag var

12E

Tower 126.85

Airport diagram

FAA airport diagramView full size ↓

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Weather

METAR observed

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TAF forecast

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Sun & FAA night2026-08-04 · night begins 08:21 PM

Event	Local (PDT)	UTC
Morning civil twilight Loggable night ends	05:46 AM	12:46Z
Sunrise	06:13 AM	13:13Z
Sunset	07:55 PM	02:55Z
Evening civil twilight Loggable night begins	08:21 PM	03:21Z

Loggable night (§1.1)

08:21 PM → 05:46 AM

Night currency (§61.57)

08:55 PM → 05:13 AM

Plan a flight from KNSI

Destination

TAS (kt)Burn (gph)Reserve (hr)Cruise (ft)Max alt (ft)Wind from (°)Wind (kt)

Past 24 hours category · wind · ceiling · visibility trends

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Winds aloft NOAA forecast · 3,000 to 53,000 ft

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Advisories

NOTAMs

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Pilot reports

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Airspace hazards

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Runways

RWY 12LEFT traffic

Heading: 121° mag · 133° true
Dimensions: 10,002 × 200 ft
TPA: 1,500 ft MSL (≈1,000 AGL) · standard
Surface: PEM
Displaced thr: 992 ft

More details — RWY 12

Threshold elev: 485 ft
Markings: nonprecision
TDZ elevation: 498 ft
Declared TORA/TODA/ASDA/LDA: — / — / — / 9,010 ft

Edge lights: High. PCN 63.

Pattern side + displaced threshold: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates

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
12/30	10,002 ft

Prefer one flat page? Full runway details for KNSI → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the KNSI kneeboard →

Comms & NavAids

Communication frequencies

Taxi & takeoff

“Navy Nicholas”

Tower

126.85

Also

Emergency

121.5

By procedure & sector (4 frequencies)

Frequency	Used by
132.425	OPS (PLEAD CON)
243.0	EMERG
306.6	OPS (PLEAD CON)
379.3	LCL/P

Source: FAA NASR (current 28-day cycle).

Nearby navigation aids

NSI 110.20

NavAid	Type	Freq · ch	Range	Radial / Dist magnetic
NSI · San Nicolas	TACAN	110.20 · 39X	—	r352° / 0.3 NM

Prefer one flat list? All KNSI frequencies →

Charts & procedures

Lowest minimums here: RNAV (GPS) with vertical guidance · VFR sectional →

Airport info

From the field

Do you run KNSI, or an FBO, flight school, or shop on it? Claim your listing to keep fuel, fees, hours, and services current.

Airport information

ICAO / IATA: KNSI
Coordinates: 33.2398, -119.4580
Elevation: 506 ft MSL
Magnetic variation: 12E
Sectional chart: LOS ANGELES
Airport use: Private
Control tower: Yes
Tower hours: 0700-1630 MON-FRI
Airspace: Class D · CLASS D SVC 0700-1630 MON-FRI; OTHER TIMES CLASS G
ARTCC: LOS ANGELES (ZLA)
Flight service (FSS): HAWTHORNE · 1-800-WX-BRIEF
NOTAM facility: NSI
Beacon: S-white-green (SS-SR)
Segmented circle: No
Activated: 1941/05
Distance from city: 0 E

Night operations

Airport lighting: SEE RMK
Rotating beacon: S-white-green · SS-SR

Runway lighting aids — 30: 4-light PAPI (left).

FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.

Ownership & management 2 contacts

Owner

US NAVY

OCEANOGRAPHIC OFC - CODE 3142, WASHINGTON, DC

Manager

Remarks FAA · 15 notes

General

RSTD: OFFL BUS. PPR FOR ALL TSNT ACFT. 72 HR PN RQRD AND NOT EARLIER THAN 7 DAYS; NO SAME DAY PPR. MIN 24 HR PN RQRD; MIN 48 HR PN FOR LRG/HVY ACFT. PPR ISSUED MON-FRI 0600-1400L ONLY EXC HOL AND APVD BY AIRFIELD MGR. ACFT THAT FAIL TO ARR WI +/- 30 MIN OF ETA RISK BEING CNLD UNLESS PRIOR CDN/UPDATE IS MADE. SEND ALL PPR REQ VIA EMAIL TO NVBC_AFM@US.NAVY.MIL. NEW CIVIL AIRCRAFT LANDING PERMIT (CALP) RQRS 30 DAYS PRIOR NOTICE FOR CDN/LEGAL REVIEW. WT BRG WAIVERS RQR NBVC (PT MUGU) AFLD MGR APVL MIN 24 HRS PRIOR NOTICE. ALL MIL READINESS EXER/TRG EVENTS RQR CDN WITH NBVC AFLD MGR PRIOR TO PPR BEING ISSUED. NO FLEET SVC AVBL. ACFT PRKG SPACE EXTREMELY LTD. NO HNGR SPACE. 180-DEG TURNS ON POROUS FRICTION SFC PROHIBITED. MV-22 OPS PROHIBITED.
JASU: 1(GTC-85) 1(NC-10C) 1(NCPP-105)
TFC PAT: RGT TFC RWY 30.
CAUTION: POSS TURB SHORT FINAL RWY 30.
FUEL: J5 (MIL)
RSTD: RWY 12 TKOF AND LDG 9002 FT.
OPR 1500-2400Z++ MON-THU/ALTN FRI. CLSD ALTN FRI; ALL SAT, SUN AND HOL.
RSTD: POSSIBLE DIVERT ALL ACFT EXC EMERG TO PT MUGU NAWS DUE DRONE MISL OPR.
NS ABTMT: REMAIN AT LEAST 1 MILE OFFSHORE OR 1000 FT MSL.
MISC: CALL PLEAD CON 127.55/280.7 OR POINT MUGU APCH 128.65/325.0 PRIOR TO ENTERING W289.
CTN UNLIT WIND TURBINES APRX 160 FT TALL LCTD BTN 3930 FT & 6105 FT SOUTH OF THE RWY CNTRLN.
MISC: FIRST 500 FT RWY 12/30 CONC; REMAINDER POROUS FRICTION SFC.
CAUTION: RWY 30 PAPI U/S UFN.
CSTMS/AG/IMG - NOT A PORT OF ENTRY; SVCS NOT AVBL.

Lighting

AVBL ONLY DURING HRS OF OPERATION.

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<iframe src="https://skyready.app/embed/airport?icao=KNSI" title="KNSI live weather — SkyReady" width="100%" height="300" style="border:1px solid #dce5f2;border-radius:12px;max-width:420px" loading="lazy"></iframe>
<p style="font:14px system-ui;margin:6px 0 0"><a href="https://skyready.app/airport/knsi">KNSI live weather &amp; runways by SkyReady</a></p>

More widgets — crosswind, E6B, density altitude — on the embed page.

Nearby airports

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Also nearby: 44CA Santa Cruz Ranch Airstrip (private) (46 NM) · CA97 Christy Airstrip (private) (51 NM)

About KNSI

San Nicolas Island Nolf Airport (NSI · KNSI) is an airport in San Nicolas Island, CA, at 506 ft MSL. It has 1 runway, the longest 10,002 ft, with a control tower. This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KNSI, refreshed from the Aviation Weather Center and FAA NASR.

Does KNSI have a control tower?

Yes. San Nicolas Island Nolf Airport has an operating FAA control tower. See the Comms & NavAids section for tower and ground frequencies.

What is the longest runway at KNSI?

San Nicolas Island Nolf Airport has 1 runway; the longest is 10,002 ft. See the Runways section for headings, surface, and lighting.

Where is KNSI?

San Nicolas Island Nolf Airport is in San Nicolas Island, CA, at an elevation of 506 ft MSL. Coordinates: 33.2398, -119.4580.

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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 KNSI 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.