Editing ETOPS (section)

{{Short description|Rules for aircraft with a failed engine}}
[[File:ETOPS rating flight path.svg|thumb|upright=2|The difference between an ETOPS-enabled shorter flight path (the solid green line) and a flight path for non-ETOPS aeroplane (the dashed blue line), the last one is curved due to the required distance to alternates]]

The '''Extended-range Twin-engine Operations Performance Standards (ETOPS)''' ({{IPAc-en|iː|ˈ|t|ɒ|p|s}}) are safety standards set by the [[International Civil Aviation Organization]] (ICAO) for [[Twinjet|twin-engine]] commercial passenger aircraft operations. They are a safety measure intended to ensure that in the event of a single engine failure, an aircraft will still be able to reach a [[diversion airport]] using the remaining operational engine. This may be at a reduced speed and/or height, and usually applies to flights over water or remote lands, typically routes previously restricted to three- and four-engine aircraft.<ref name=AirbusETOPS>{{cite book |url= http://www.737ng.co.uk/AIRBUS%20ETOPS%20Guide.pdf |title=Getting to Grips with ETOPS|date=October 1998|publisher=[[Airbus]]|edition=Issue V}}</ref>{{rp|page9}}