![]() The E2VS (Embraer Enhanced Vision System) is comprised of a Rockwell Collins HUD, the HGS-3500, and an externally mounted three camera EVS, the Rockwell Collins EVS-3000. In an effort to increase flight safety and dispatch capability in poor weather conditions, Embraer is developing an EFVS for its Legacy 450/500 business jets. ![]() The deletion of the requirement to transition to visual references at 100ft may yield safety benefits equivalent to Cat II and III operations at many smaller airports with limited navigational aids. This proposed rule change would allow descent below 100ft above the touchdown zone elevation if the required visual references can be observed using the EFVS. A further capability enhancement is outlined in Draft AC 20-167A. This capability can be particularly useful to get into smaller destinations which aren’t serviced by precision approaches. Descent below 100ft requires these same references to be visible using natural vision alone. That is, the EFVS enhances the view by adding or highlighting features that may not be perfectly visible electronic sensors can often “see” more than the human eye.Ĭurrent US Federal Aviation Administration rules allow the use of an EFVS to descend from the decision altitude/height (DA/DH) or minimum descent altitude (MDA) to 100ft above the touchdown zone elevation, if required visual references are visible on the EFVS. Some readers may ask, why the differentiation between an EVS and EFVS? The output of an EVS can be displayed both on a HUD and a panel-mounted display, but the EVS output needs to be on the HUD to be an EFVS. Where the addition of a HUD can be a real game changer is when it is combined with an enhanced vision system (EVS) to form an EFVS, or enhanced flight vision system. Aviation, however, is an expensive endeavour – so in reality many systems have to buy their way on to an aircraft. Most would agree that a HUD can be a great safety enhancer, allowing flight of the aircraft with one’s head out of the cockpit.Īs a pilot I find the safety benefit alone warrants the installation of a HUD. On preview flights in transport and business aircraft, the HUDs in the Boeing 787 and large-cabin Gulfstreams come to mind. The HGS system installed on the Boeing 737s I fly as an airline pilot allow Cat IIIa approaches, increasing schedule reliability. Throughout my aviation career I have had experience flying with head-up displays, or HUDs: from the fairly rudimentary one in the General Dynamics F-111, used primarily for weapons aiming, to the large field of view (FoV) one in the Boeing C-17. Airline Business special: CEOs to watch in 2021.FlightGlobal Guide to Business Aviation Training and Safety 2021.EDGE: A new global force in aerospace and defence.Shell Aviation: What will it take to Decarbonise Aviation?.What does the future of aviation look like in 2022?. ![]() Guide to Business Aviation Training and Safety 2022.What will it take to Decarbonise Aviation?.Guide to Business Aviation Training and Safety 2023.Airline Business Covid-19 recovery tracker.
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