Aircraft seat map
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An aircraft seat map or seating chart, is a diagram of the seat layout inside a passenger aircraft. They are often published by airlines for informational purposes, and are of use to passengers for selection of their seat at booking or check-in.
Seat maps usually indicate the basic seating layout, the numbering and lettering of the seats, the location of the emergency exits, lavatories, galleys, bulkheads and wings. Airlines which allow internet check-in frequently present a seat map indicating free and occupied seats to the passenger so that they select their seat from it.
In addition to the published seat maps from airliners, there are a number of independent websites which also publish seat maps along with reviews of individual seats, noting the particularly good (extra legroom, quiet cabin, etc.) or bad (lack of recline, unusually cramped, missing window, etc.) seats.
Seat maps published by airlines
Most of the airlines publish the seat configurations for their aircraft, but the quality of these seat maps is sometimes questionable. Some of the details and information about seats are confusing. Usually airlines do not publish seat maps for every aircraft, only for the larger aircraft and for the ones flying on frequent routes.
When passengers complete an online booking, or check in online, they are often also presented with an aircraft seat map. However, this data is sourced from the original text-only seat maps on computer reservation systems such as Sabre where the seatmap is simply held as a two-dimensional array and as such can only display a grid of seats, as opposed to the more ingenious layouts now used in First and Business Class.
Nichols et al. (2013) have reported that when people book seats on-line, they exhibit a leftward preference for seats on an aircraft, but a rightward preference for seats at the theatre.
Seat maps published by specialized websites
In addition to those published seat maps which can be found on airline websites, there are some other websites that publish aircraft seat maps for almost all commercial carriers. Seat maps that can be found on these sites usually have more details and on some websites you can find comments from other passengers with advantages and disadvantages about each seat.
The accuracy and editorial independence of specialised websites showing seat maps have also been questioned. Seatguru has come under scrutiny since it was sold to the online booking agent Expedia for $1.2m, and Expedia now use the seatguru information when selling seats. As a result, SeatGuru has received some criticism for presenting seat maps which are inaccurate and where no one from the company has travelled on the aircraft; for example showing bars on aircraft where there are none (on the Singapore A380) or seat rows that don’t exist (on the Emirates A380).
The latest generation of user-generated airline seatmaps include comments from frequent flyers, and one specialised website has gained access from airlines to take pictures of every seat, and sit in them to write specific recommendations, alongside the detailed seat maps.
On many aircraft, the rightmost seats have letter designations HJK, skipping the letter I. This is because each seat has a row number followed by letter. Letters that confuse with numbers must be avoided. Digital Equipment Corporation (DEC) was the first to implement this, avoiding I (1), O (0) and S (5). The remaining letters are called the DEC alphabet.
Occasionally, aircraft with a seating structure of 2+2 may letter the seats as "ACDF" to keep with the standard of A/F being window and C/D being aisle on short-haul aircraft (which generally have 3+3 seats).
In First and Business class cabins, the seat letters for the window seats will typically be the same as in coach, with some letters skipped in between as there are fewer seats per row. For example, if economy cabin is ten across, labeled ABC-DEFG-HJK, the Business Class cabin might be labeled AC-DG-HK for a six across layout, with A-DG-K for a four across First Class. One notable exception to this is Delta Air Lines, who uses sequential letters regardless of cabin layout on all aircraft (AB-CD-EF in Business Class and ABC-DEF-GHJ in Economy).
Some airlines omit the row number 13. For example, Lufthansa, (as shown e.g. on the Lufthansa A321/100 seating plan) reputedly because of a widespread superstition that the number 13 is unlucky. Emirates used to have a row 13, but on their latest A380 aircraft have removed it (as shown on Emirates A380-800 seating plan). British Airways are less superstitious, and their seat maps for A320 aircraft shows a row 13. Delta Air Lines also includes row 13 in many of their seat maps.
- Nicholls, M. E. R., Thomas, N. A, and Loetscher, T., "An Online Means of Testing Asymetries in Seating Preference Reveals a Bias for Airplanes and Theatres", Human Factors, Vol. 55, Issue 4 (2), August 2013.
- http://www.airreview.com/News/Story/0.htm, “Airreview, May 8, 2007, accessed Feb 4, 2011.
- Airline seat advice showdown 2009: SeatGuru vs. SeatExpert | Upgrade: Travel Better Archived September 12, 2010, at the Wayback Machine.
- SeatGuru vs. SeatExpert: Which one to believe? [Archive] - FlyerTalk Forums
- "Airline seating plans from Airreview.com". mapseat.com. Retrieved 7 February 2015.
- "Delta Airlines Airbus A320 Seat Map - SeatLink". www.seatlink.com. Retrieved 2015-10-20.