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Enter Sion

Short answer: Sion Airport (LSGS) lies in the Rhône Valley in Switzerland's canton of Valais, surrounded by high Alpine terrain.

According to the Reel, its instrument approach to Runway 25 uses an instrument guidance system with an initial 6-degree glide slope that eases to 4 degrees, much steeper than the standard 3 degrees, and pilots need special authorization to fly instrument approaches there. The footage shows an approach into the valley.

VideoWrite-up1 sources

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What should you know about Enter Sion?

Quick facts. Each one stands alone and has a stable ID you can cite.

  1. Rhône Valley, Valais.

    DD-406-F01 · Write-up · Exhibit A (Location)

  2. LSGS.

    DD-406-F02 · Write-up · Exhibit B (Code)

Video transcript: Enter Sion: Sion Airport Sits Deep in the Rhône Valley, Ringed by Alps

Approaching Sion Airport or LSGS in Switzerland presents unique challenges due to its location in the Rhône Valley surrounded by the Swiss Alps. The airport's primary instrument approach is an instrument guidance system or IGS for Runway 25 featuring an initial glide slope of 6°, that transitions to 4° on final approach, [...] the standard 3° glide slope. This steep [...] requires precise aircraft control and familiarity with the terrain. [...] must obtain a special authorization to conduct IFR approaches at Sion. NOW YOU KNOW!

Burned-in captions, read frame by frame (see transcript.md) · 29.8s Reel ·

Video coming soonEnter Sion · Instagram Reel
Enter Sion: Sion Airport Sits Deep in the Rhône Valley, Ringed by Alps Instagram Reel · · 29.8s

The write-up

Sion Airport sits deep in the Rhône Valley, ringed by Alps. The Reel says its approach starts at a 6-degree slope.

  1. Exhibit A

    Location

    Rhône Valley, Valais.

  2. Exhibit B

    Code

    LSGS.

  3. Exhibit C

    Terrain

    Surrounded by Alps.

  4. Exhibit D

    Steep

    Steeper than 3 degrees, per the Reel.

  5. Exhibit E

    Authorization

    Special approval, per the Reel.

Questions people ask about Enter Sion

Which country?

Valais.

Source: Write-up · Exhibit A (Location) · Wikipedia: Sion Airport

Which valley?

River.

Source: Write-up · Exhibit B (Code) · Wikipedia: Sion Airport

Standard glide slope?

Typical.

Source: Write-up · Exhibit C (Terrain) · Wikipedia: Sion Airport

Airport code?

ICAO.

Source: Write-up · Exhibit D (Steep) · Wikipedia: Sion Airport

What surrounds it?

Mountains.

Source: Write-up · Exhibit E (Authorization) · Wikipedia: Sion Airport

Test Your Knowledge

All quizzes →

5 questions, all from this case file. Answers are revealed instantly.

  1. Which country?

    1. Switzerland
    2. Austria
    3. Italy
    4. France
    Show the answer

    Answer: A. Switzerland Valais. Source: Write-up · Exhibit A (Location) · Wikipedia: Sion Airport

  2. Which valley?

    1. Rhône
    2. Rhine
    3. Po
    4. Danube
    Show the answer

    Answer: A. Rhône River. Source: Write-up · Exhibit B (Code) · Wikipedia: Sion Airport

  3. Standard glide slope?

    1. 3 degrees
    2. 10 degrees
    3. 1 degree
    4. 45 degrees
    Show the answer

    Answer: A. 3 degrees Typical. Source: Write-up · Exhibit C (Terrain) · Wikipedia: Sion Airport

  4. Airport code?

    1. LSGS
    2. LSZH
    3. LFPG
    4. EGLL
    Show the answer

    Answer: A. LSGS ICAO. Source: Write-up · Exhibit D (Steep) · Wikipedia: Sion Airport

  5. What surrounds it?

    1. The Alps
    2. The sea
    3. A desert
    4. Plains
    Show the answer

    Answer: A. The Alps Mountains. Source: Write-up · Exhibit E (Authorization) · Wikipedia: Sion Airport

Cite this case file

Easterling, Marcus. "Enter Sion." The Detail Department (DetailEnjoyer), case file DD-406, last updated Dec 3, 2024. https://detailenjoyer.com/case/enter-sion/

Permalink: https://detailenjoyer.com/case/enter-sion/ · Last updated

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Cite a single fact by its ID, for example DD-406-F01 → https://detailenjoyer.com/case/enter-sion/#DD-406-F01

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