LOWIINNInnsbruck, Austria

Innsbruck Airport

Offset localizer and RNP AR approaches in a mountain valley.

1,907 ftElevation
08/26 · 2,000 mRunway
Offset LOC, circling, FöhnKnown for

What to watch out for

  • The airport sits at 1,907 ft in the Inn valley with terrain up to ~9,000 ft on both sides — there is no low-altitude escape route.
  • No ILS at all. The standard approach is an offset localizer: the OEV beam runs 4° right of the runway 26 centreline and crosses it 0.2 NM before the threshold — you fly the needle until it no longer points at the runway.
  • The RNP approaches to both runways are RNP AR (authorization required): RNP 0.3 legs through the valley, missed approach on RNP too — dual GNSS plus an IRU is required, DME/DME or VOR updating is not authorized.
  • Landing on runway 08 after an approach to 26 means circling in the valley — a visual manoeuvre with terrain on every side.
  • The missed approach is the critical constraint: a left turn at D-1.0 OEV capped at 155 kt with a minimum 25° bank and a 1,700 m turn radius — between the mountains.
  • Crew familiarization is mandatory in real life: Austro Control requires training (VMC on site or in a simulator) before first use of the instrument procedures below a 3,000 ft AAL ceiling.
  • Föhn — strong, turbulent southerly mountain wind — can make the final to 26 particularly rough.

Procedures

LOC DME East (RWY 26)

on site

The standard procedure — offset localizer via RTT, step-down on OEV distances.

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RNP Z/Y RWY 26 & 08 (AR)

RNP 0.3 through the valley — needs the aircraft AND the crew authorization.

Circling to RWY 08

Break off the 26 approach and fly visually around the airport — terrain everywhere.

The numbers

OEV localizer
111.10 · 254°
offset 4° right of RWY 26 centreline
Minima (5.0% climb gradient)
OCA 3300 (1406)
at D-3.5 OEV — better climb buys lower minima
Missed approach
MAX 155 kt · MIN 25° bank
1,700 m turn radius at D-1.0 OEV
Holding fix
RTT NDB 303 kHz
hold at 9,500 ft
Tower
120.100

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