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FHAW

ASI

RAF Ascension Island · Cat Hill

Key Facts

Technical summary and operational standards.

ILS Approach StatusILS FREQUENCIES VERIFIED ✅
Field Elevation
278 ft / 85 m
Transition Altitude
5,000 ft
Primary Channel
TWR 126.20 MHz (WIDEAWAKE TWR)
Runway Summary
13/3110,019 ftAsphaltLIGHTED

Mission Briefing & Tools

Direct calculators and pre-filled resources for this airport.

TOD CALC
Plan Descent
CROSSWIND
Check Limits
VDP CALC
Visual Point
CONVERTER
QNH / Fuel
SkyVector FlightAware Live METAR Satellite

Less math, more flying. Did this save your approach? 🛬

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Briefing for RAF Ascension Island (FHAW), Saint Helena, Ascension and Tristan da Cunha. This facility features 1 active runways with an elevation of 278 ft. Verified ILS frequencies are available for precision approaches.Maintain a Transition Altitude of 5,000 ft for altimeter reset.

Airport Details

Full geographical and organizational metadata.

Full Name
RAF Ascension Island
ICAO / IATA
FHAW / ASI
Municipality
Cat Hill
Country
Region
SH-AC
GPS Coordinates
Transition Altitude
5,000 ft
Official Website
Wikipedia

Runways & ILS Approach Data

Detailed dimensions and verified landing frequencies.

Runway 13 / 31
LIGHTED
Length: 10,019 ft / 3,054 m
Surface: Asphalt
Heading: 117° / 297°
RWY 13
No ILS
RWY 31
No ILS

Communication Frequencies

ATC and advisory channels.

A/G RAF HAVENS HF
1124.70 MHz
ACC ATLANTICO FIR
1795.50 MHz
RDO ASCENSION RDO
1078.00 MHz
TWR WIDEAWAKE TWR
126.20 MHz

Nearby Airports

Alternatives in the vicinity.

GLMR
Spriggs Payne Airport
1636 km
GLRB ILS
Roberts International Airport
1641 km
DISP
San Pedro Airport
1654 km
GFBO
Bo Airport
1793 km
GFKE
Kenema Airport
1800 km

Data Source: OurAirports · Technical Briefing Jan 2026
ILS Data Source: AIP / FAA NASR Cycle Verified