HOLD SHORT

Havelmark tower & ops simulator · XHAVDEMO · MOCK DATAWhat's new

You are the tower at Havelmark.

Every aircraft needs your word to land, to cross a runway, to push back, to take off. You give it over the radio, in the right order, at the right moment. An AI crew works every position you hand over, and twenty voices answer you.

HOLD SHORT is played on a computer: a keyboard and mouse, and a microphone if you want to talk to your traffic. Have a look around here; the tower opens on a bigger screen.

Choose your shift

Start on the left · the same craft, more traffic and weather with every step right ·
Start hereSyllabus · six short shifts

First light

Learn the desk one position at a time, with a supervisor beside you. Shift one: four arrivals on 07L, and only the landing clearances are yours.

    Shift 1 of 6 · ~14 min · Cadet · Midfield
    MediumHavelmark International

    Midfield

    The easier layout. The terminal sits between two runways: arrivals land on the north one and taxi straight in, departures cross the field to the south one.

    Runways
    2 parallel
    Stands
    40
    Movements
    ~100 / 2 h
    Vehicles
    ~90
    HardHavelmark International

    Crossings

    The harder layout. Both runways lie north of the terminal, so every arriving aircraft has to cross the departure runway. You decide when a crossing beats a take-off.

    Runways
    2 parallel
    Crossings
    J · L · P
    Stands
    40
    Movements
    ~100 / 2 h
    Very hardHub · four runways

    Rheinhafen International

    A hub on a scale of its own. Landings on the Northwest runway and 07C, take-offs on 07C and the angled runway 18, freighters on 07R with CargoCity South below it. More than 120 stands, three fire stations, the AI works every position you leave.

    Runways
    4 1 angled
    Stands
    122
    Movements
    ~150 / 2 h
    Fire stations
    3
    ClassicLegacy desk

    Havelmark Regional

    The original scripted morning: one runway, one apron, a late tug, a start-up hold, a readback trap and a thunderstorm. Text radio, no ledger. Kept for old times' sake.

    Runway
    1 07/25
    Stands
    12
    Movements
    ~10 scripted
    Radio
    Text
    No setup · Tower + Apron · ~25 min

    Scenarios

    A story, a twist, the same shift for everyone · scored against the AI like any shift

    How a shift is scored

    Penalty Points · lower is better · every point is explained in the debrief
    01

    Waiting costs points

    Every minute an aircraft waits because of you is a Penalty Point, more with more passengers on board. A late clearance, a go-around you caused or a missed slot costs extra.

    02

    Zero is perfect

    Nobody finishes a shift at zero. The job is to keep the number low, and the debrief shows you where every point went and what would have avoided it.

    03

    Par is the AI

    While you play, the built-in controller works the exact same shift in the background. Its total is par. Beat it for Gold, halve it for Platinum.

    Daily challenge

    Once you know the desk: one shift, the same for everyone today · your first result counts
    Date—Seed—Weather—
    Midfield
    Crossings

    Everything here is simulated: the traffic, the vehicles, the requests, the times. Havelmark does not exist. In the desk, ☰ top-left brings you back here with the shift paused; End shift opens the debrief with your score, your medal against par and the supervisor's remarks. What's new →