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Rotary Wing Geek

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  • It’s behind you! Helipads and obstacles in the backup area

    It’s behind you! Helipads and obstacles in the backup area

    5 June 2025
    Aircraft Operations, Helicopter Emergency Medical Service (HEMS)

    Designing hospital helipads so they are safe and efficient is a fine art. A growing body of guidance is provided by the aviation authorities to help with delivering effective capability from day. However, some of the guidance is currently flawed; there is an assumption that bigger helicopters are the most restrictive when actually it’s what…

  • EC135, Checklists and the “Red Button of Doom”

    EC135, Checklists and the “Red Button of Doom”

    2 June 2025
    Helicopter Design

    Introduction The EC135 SAS DCPL or SAS/AP CUT button is a red semi-guarded button on the head of the cyclic used to disengage all elements of the autopilot and stabilisation system simultaneously. Pressing the button usually gives fairly benign results when flying visually but if it is pressed in fully coupled instrument flight, it can…

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Rotary Wing Geek

Rotary Wing Geek

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