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  • Lights, helipad, action! The problem with new helicopter pad lights

    Lights, helipad, action! The problem with new helicopter pad lights

    12 October 2025
    Aircraft Operations, Aviation Technology, Helicopter Emergency Medical Service (HEMS)

    The UK CAA have developed a lighting scheme for hospital helipads in CAP 1264 which is based on the standard for offshore helicopter landing site marking. This offshore scheme is published in CAP 437 and is based on hard won lessons in safely operating helicopters to offshore helidecks (see here) and the principles outlined in…

  • Helicopter on Fire – Could accident investigators have learned more?

    Helicopter on Fire – Could accident investigators have learned more?

    5 October 2025
    Aircraft Operations

    On 28 August 2023 at 0844, N109BC, an EC135 T1 helicopter, crashed in Pampano Beach, Florida killing Captain Terryson Jackson, a paramedic in the aircraft, and one person on the ground. The other paramedic and the pilot were injured and 2 other people on the ground were also injured. The accident report was released by…

  • The Ultimate Medical Helicopter – Selecting the right machine for HEMS

    The Ultimate Medical Helicopter – Selecting the right machine for HEMS

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

    The choice of helicopter for HEMS (Helicopter Emergency Medical Service) operations is a difficult one. Whilst cost is a huge factor, there are many subtle elements which go into the selection of a helicopter. This article aims to explore those options and present what an ideal HEMS aircraft would be. In the near future, another…

  • Aerial teamwork – Practical tips for working together by staying apart in emergency aviation

    Aerial teamwork – Practical tips for working together by staying apart in emergency aviation

    2 September 2025
    Aircraft Operations, Helicopter Emergency Medical Service (HEMS)

    The need for separation Typically, a helicopter used in the Helicopter Emergency Medical Service (HEMS) has a crew that can manage one critically ill patient at a time. Where an incident has multiple casualties needing a critical care response, multiple helicopters can be tasked to the same incident. In addition, other types of emergency aviation…

  • HEMS Landing Sites – Reliable places to drop your medics

    HEMS Landing Sites – Reliable places to drop your medics

    4 August 2025
    Aircraft Operations, Helicopter Emergency Medical Service (HEMS)

    In an earlier article, I discussed how big a landing site needed to be for UK and European Helicopter Emergency Medical Service (HEMS) operations. (https://rotarywinggeek.com/2d-or-not-2d-how-much-room-do-i-need-to-land-a-helicopter/). However, this is only part of the story and there is a lot more to choosing a landing site than just the size. Whilst this article is primarily focussed on…

  • Planning to fail – The perils of ignoring your own advice

    Planning to fail – The perils of ignoring your own advice

    22 July 2025
    Aircraft Operations

    “How on earth did I get here?” IMC, 36 kg of fuel in the main tank before minimums and facing a lengthy period of radar vectoring to get lined up for an approach. I had planned in detail, applied Threat and Error Management (TEM) and been supported by the rest of the company along the…

  • 2D or not 2D – How much room do I need to land a helicopter?

    2D or not 2D – How much room do I need to land a helicopter?

    10 July 2025
    Aircraft Operations, Helicopter Emergency Medical Service (HEMS)

    Introduction Following a few recent accidents with aeromedical helicopters, I thought it is time to take a look at what makes a good landing site for a helicopter. I am going to focus on helicopters being used for aeromedical evacuation (in Europe called “Helicopter Emergency Medical Service – HEMS”) as that is the most likely…

  • What is your left hand doing?  How to fly a 3-axis autopilot on helicopters

    What is your left hand doing? How to fly a 3-axis autopilot on helicopters

    22 June 2025
    Aviation Technology, Helicopter Design

    Introduction Some helicopters fly beautifully without any flight control automation or stabilisation systems. The Gazelle was one such aircraft and a reasonably competent pilot could achieve amazing accuracy in IMC with just basic instruments. However, in this modern age, automation has become the norm and in many operations, being coupled up to an autopilot is…

  • My tail rotor pitches when it flaps!  Why?

    My tail rotor pitches when it flaps! Why?

    22 June 2025
    Aviation Technology, Helicopter Design

    This is one for the helicopter pilots and engineers in my network. I thought I knew why the tail rotor blades pitched when they flapped and what delta 3 hinges were all about on helicopters. Right up to the point I stopped to look carefully at the tail rotor on the Bell 429 I currently…

  • Practical ILS explanation for pilots – the surprising way they really work

    Practical ILS explanation for pilots – the surprising way they really work

    22 June 2025
    Aviation Technology

    For all of my flying career I have been given a standard explanation about how an ILS works. In the military it was described in accordance with RAF Publication AP3456 and in civilian life it was described in the ATPL exams and associated training material. With some minor differences, it is described as a pair…

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Rotary Wing Geek

Rotary Wing Geek

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