What is ETOPS and how does it work? - Aviation Stack Exchange
Jun 12, 2015 · Certification ETOPS certification requires both the aircraft and the airline to comply with a set of standards. For the aircraft, the manufacturer must demonstrate that flying with only one engine …
airliner - What is the main difference between an ETOPS certified and ...
11 The FAA ETOPS certification requires certain standards from both the airline (the operator) and the aircraft (the manufacturer). As far as the manufacturers are concerned, the ETOPS certification is …
Are four-engined airplanes subject to ETOPS equivalent rules?
Sep 5, 2014 · The ETOPS rules become relevant whenever a three- or four-engined jet diverts more than 180 minutes from the nearest airport. For more information, refer to the airliners.net thread on 3 …
Which current commercial flights have the highest ETOPS ranking?
Jan 11, 2018 · @SteveKuo: with highest rated ETOPS flight I mean commercial flights operating under the highest (in minutes) ETOPS rules (330, 370, 420 minutes). That somehow translates to …
Why does ETOPS not apply to older 4 engine aircraft?
Jun 14, 2015 · This is a follow-up to my previous question: What is ETOPS and how does it work? There is a related question here, but it does not specifically answer this new question. Facts: Since …
How are ETOPS diversion airports selected? - Aviation Stack Exchange
Feb 17, 2025 · I was doing a flight from Tokyo to Paris with an ETOPS rated plane and while looking at my dispatch, I noticed that my ETOPS diversion were further away than some other airstrips with …
Why ETOPS 207 minutes? - Aviation Stack Exchange
Oct 17, 2018 · ETOPS 138 and 207 are 15% extensions of ETOPS 120 and 180. The reason for that is that with the ETOPS 120 rule, most of the Atlantic could be covered when using Kangerlussuaq …
ETOPS 330 vs ETOPS 370 etc; how are the exact minute ratings derived?
Jun 12, 2017 · 14 I am curious how the ETOPS minutes categories are arrived at. i.e. Say, ETOPS 330 vs 370. What extra abilities would the 370 type have demonstrated that the 330 didn't have? Was it …
'etops' tag wiki - Aviation Stack Exchange
ETOPS (originally E xtended-range T win-engine O perations, now often simply E x t ended O perations, colloquially E ngines T urn O r P assengers S wim) is a rule which permits twin-engine aircraft …
How does an ETOPS APU start in-flight? - Aviation Stack Exchange
Aug 25, 2016 · An ETOPS APU has to be on-demand, i.e. must be able to start at any altitude. If it can't, then it's not shut down for the entire flight. Compared to a normal APU, what are the design …