My ability to spend long hours at this page feeding in random city pairs, mesmerized by the. This is the fundamental question for a flight planner. It is a very nice great circle map generator, centered on your specific location. If you dont pick a style, the program tries to pick what it thinks will look best. Using etops to support your fstd engineering demands allows you to employ your simulator technicians appropriate to the needs of your daytoday operations. Mar 31, 2020 the great circle mapper displays maps and computes distances along a geodesic path. I love the maps that karl at great circle mapper makes available.
Now ive made it easier to embed them in a blog post on wordpress. A great circle is essential to plotting the most direct route between two cities on a round planet. How can i buy advertising on the great circle mapper. The great circle mapper displays etops maps, but it notes that the area depends on aircraft speed on one engine, which will vary from aircraft to aircraft. For example 120 min so the range rings will be 680nm. Etops is an acronym for extendedrange twinengine operations.
The cornerstone of the etops approach is the statistics showing that the turbine assembly of a modern jet engine is an inherently reliable component. Great circle mapper flight distance flight time aviation. It includes an extensive, searchable database of airports and other. For over 30 years, the rules have succeeded in making longrange air travel for twoengine and now fourengine aircraft reliable and safe. Etops requirements apply, all subsequent flight planning in the etops area of operation must account for the affects of wind and temperature on the calculated distances from each etops alternate airport. Etops stands for e xtendedrange t winengine o perational p erformance s tandards, a rule which permits twin engine aircrafts to fly routes which, at some point, is more than 60 minutes flying time away from the nearest airport suitable for emergency landing. This page is designed to help you calculate answers to some common geographic questions and draw maps from simple coordinates. Etops plotting software could anyone suggest software for creating etops charts with the various range circles that would overlay that data on an enroute chart. Interactive tool for displaying great circle routes and etops circles. Although the great circle mapper does a very good job i assume of.
The etops malaysia office is conveniently situated very close to subang airport in kuala lumpur. The great circle mapper also uses this speed unless you select a different speed. That being said, we will use the following airports as our etops diversion airports. Airport directory airports by country great circle mapper. To find your aircrafts 180minute range you can use the excellent website, great circle mapper and input a true airspeed to produce a chart like the one shown above. Can i get the source code for the great circle mapper. If you look in the documentation, you will note that the etops mapper uses 389 kts for airspeed, which they say is appropriate for a 757 and not that far off for other planes. Travel codex to unravel the complexity of travel loyalty programs.
Jun, 2008 12042b extended operations etops and polar operations date issued june, 2008 responsible office afs220 description states an acceptable means but not the only means for obtaining approval under far section 121. The facility is certified by the malaysian dca for conducting type rating training for the atr4272 aircraft. Greatcirc is a tool for calculating great circle distances on the earths surface, and plotting points and great circle paths on a world map. Early studies leading to etops were based on the boeing 757 and used 389 kts, a typical engineout speed for that aircraft. This is soon to be extended to include airbus a320 and boeing 737 type ratings.
Sep 18, 20 a good techinique you could use, is to create a 420nm circle which represents your 60mins flying single engine bla bla bla around your etops adequate airports in the fmc fix page. Etops modifies the standard for twinengine flights, which is to remain no further than 60 minutes flying time from a viable landing zone at any given time. Ac 542 extended operations etops and operations in the. Ranges from one or more locations may also be plotted, along with gonogo areas for etops operations at various rule times. M, dms calculate the great circle distance between two points. Apr 09, 2019 the essential introduction to using gcmap. Does anybody use b737 or a320 on routes where etops is really significant esp. Etops rules suggestions and feature requests airline empires. Etops aircraft include the airbus a220, a300, a310, a320, a330 and a350, the boeing 737, 757, 767, 777, 787, the embraer ejets, and the atr 72. Etops can take care of any ongoing development and software tasks through its network of experienced fstd engineers and can deliver this service either remotely or onsite. I dont have all the answers for you, but one portion of my longhaul flight planning involves checking great circle mapper, as they have successfully implemented all the etops rules so it will display alongside your route. British airways pauses london gatwick 31 march 2020antipodal 747 finales 30 march 2020united reinstates a few intercontinental flights 23 march 2020papeete to paris nonstop 16 march 2020first etops 120 revenue flight 1 february 2020el paso and california 27 january 2020. Use great circle mapper to calculate the distance and flight duration between all airports worldwide and draw the flight route on a map.
The essential introduction to using gcmap travel codex. I have a question regarding the critical fuel scenarios with the etops calculations. Other questions what software does the great circle mapper use. May i use the great circle mapper s maps on wikipedia. The icao coined the acronym for extended twin operations for twinengine aircraft operation further than one hour from a diversion airport at the oneengine inoperative cruise speed, over water or remote lands, on routes previously restricted to three and fourengine aircraft. Click in the large textfield above to enter all the airports of your flight route. A nogo area is an area where an aircraft may not fly within etops rules. It automatically includes the links back to karls site per the notes in the faq page. If you have any problems or get unexpected results, please let me know. Great circle map displays the shortest route between airports and calculates the distance.
You can also calculate approximate distances of flight segments, which are generally pretty close to the calculations used by the mileage programs. Displays a map on which the great circle path for one or more routes is plotted and calculates the distance along each route. Both of these websites have etops plotters which draw 180 minute arcs from a given waypoint based on your selected true airspeed. The next step in the process is to utilize or great circle mapper. This is advanced great circle mapper, but you dont have to stick with the red dots and. Faq for the great circle mapper page, including detailed information about. The great circle mapper is a web tool for visualizing the great circle path between airports around the globe and for computing the distance use great circle mapper to calculate the air distance and flight time between all airports worldwide i love the maps that karl at great circle mapper makes available. Great circle mapper the great circle mapper displays maps. It includes an extensive, searchable database of airports and other locations. Under the new etops rule, three and fourengine passenger airplanes flying extended routes will be required to carry an etops fuel reserve. Draw you flight path on a map and calculate the great circle distance in nautical miles and kilometers. Are there diversion points for southern pacific great circle route flights. Simply install the very lightweight plugin and you get a new. Top sites grand circle mapper 2019 latest grand circle mapper.
The great circle mapper displays maps and computes distances along a geodesic path. Why is narsarsuaq not listed as an etops alternate. Ac 12042b extended operations etops and polar operations. The map generator is the brainchild of tom, ns6t, and can be found on his ham stuff website along with some other interesting bits. The great circle mapper assumes the speed of sound is 574 knots about 660. Especially in the transpacific routes, having etops rules based on the great circle mapper would add a degree of realism. Learning how to plot your route isnt too difficult. The timelimited capabilities of certain airplane systems must be able to support these varying distances to maintain dispatch reliability. Oct 30, 2016 this is just the pretty side of great circle mapper. Top sites great circle mapper globe 2019 latest great.
The reprieve is needed in order to hype my new favorite web site, karl swartzs great circle mapper. If the aircraft is flying under a 120minute etops ruletime then a location which was more than 120 minutes singleengine flying time from any airport would be in that aircrafts nogo area. Gv 180minute, 358 ktas etops map, from great circle mapper. My ability to spend long hours at this page feeding in. Ive used the great circle mapper website for a couple. When the single engine speed has been determined for example tas of 340 kts. Great circle mapper airport and aviation database great.
Extended twin operations etops or extended operations describes an aerial maneuver in which a twinengine aircraft is able to extend its flight away from emergency landing fields. Etops may also be interpreted as engines turn or passengers swim. The great circle mapper s etops option shades nogo areas on the map. I am aware of and i have jeppesen jeppview but neither are giving the results i desire. The etops segment is the portion of the planned r oute of flight that is considered extended range operations. A gvs engineout 180minute foot print can be figured at 358 ktas but the selected speed is up to the pilot. You can map ranges, look up etops, see the latitude and longitude of an. Aug 20, 2010 etops rules posted in suggestions and feature requests. Swartz, has built a fantastic tool that does much more than show flight paths. The faa has also implemented a non etops provision, 14 cfr 121.
Do the critical fuel scenarios have to be calculated with this speed or is this speed only of use to determine the range. The great circle mapper is a web site launched in september 1996 which features maps illustrating the great circle. Get estimated flight time by choosing an aircraft type or entering the cruising speed. Apr 12, 2016 etops planning tutorial using pfpx in this vid i want to give the nuts and bolts of proper etops planning. May i use the great circle mapper s maps for commercial sites or publications. Frequently asked questions faq great circle mapper. Without an etops rating, an aircraft with only two engines must be able to get to an airport where it can safely land within 60 minutes if an engine fails inflight. Mar 04, 2005 the reprieve is needed in order to hype my new favorite web site, karl swartzs great circle mapper. Find all airports worldwide ordered by continents and countries. The free version has all the functionality of the paid version of etops, except the location services will be disabled after 5 to 10.
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