Sơ đồ chỗ ngồi Lufthansa Airbus A321neo

Layout transcribed row-by-row from the Lufthansa fleet PDF 202603_A321neo_215.pdf (revision 2026-03), the authoritative published seat map. 37 rows of 3-3 (columns A B C | D E F); rows 13 and 17 are not used. Door 1 (L/R) forward, TWO pairs of overwing emergency exits at rows 18 and 19, a Door 3 (L/R) aft-of-wing pair at the row 28/29 boundary, and Door 4 (L/R) at the rear — the Airbus Cabin Flex (ACF) exit arrangement. Forward galley (right) + accessible lavatory (left) ahead of row 1; a mid-cabin lavatory sits on the window (D/E/F) side at row 27; rear galley + two rear lavatories behind row 39. IRREGULAR ROWS (read from the diagram): the mid-cabin lavatory takes the D/E/F side at row 27 (seats A/B/C only), a crew seat + the Door 3 exit take the D/E/F side at row 28 (seats A/B/C only), and row 29 (extra-legroom, behind Door 3) loses its F window seat to the door vestibule (seats A/B/C/D/E) — 7 fewer seats than a full 37x6 grid, giving 215. MODELING OF THE BUSINESS/ECONOMY SPLIT (AUTHORING.md §6): Lufthansa short-haul is a Eurocabin — a single physical 3-3 economy deck. Business Class is created on the day by a MOVABLE divider at the front of the cabin, with the adjacent middle seat kept free; its extent varies flight-by-flight with demand (the PDF legend states explicitly: "Partition between Business and Economy Class according to demand" and draws the divider as a repositionable curtain around the row 7/8 boundary). Because the seats are identical economy hardware and no fixed cabin boundary exists, this is modeled as ONE economy cabin (canonicalTier economy) with the Business block expressed as a demand-dependent ZONE (representative maximum rows 1-7) rather than a separate cabin; no seat is assigned a business tier, so cabinSummary carries no J token. Location/legroom tiers within the one cabin are expressed as zones: Preferred Zone = rows 8-11 (forward Economy at a surcharge; identical hardware, flagged preferred_zone, rated standard as a location premium); Extra-legroom exit rows = 18, 19 (overwing) and 29 (behind Door 3), given a distinct seatType (canonicalTier extra_legroom_economy) so they count as N in cabinSummary. DERIVATIONS / UNPUBLISHED: the PDF publishes row/seat identifiers, cabins, extra-legroom and Preferred-Zone seats, exits, galleys and lavatories, but NO numeric pitch or width and no amenity detail; all pitch/width/recline values are therefore unsourced estimates (marked unsourced/approximate) and the extra-legroom rows are marked by symbol only (no numeric delta on this PDF). windowAlignment is left "unknown" for window seats (A/F): the map shows seat positions, not whether a structural window lines up, and the a321neo (ACF) engineering grid has no structural blanks. Wing extent and monument sides are read from the diagram. Amenities (Wi-Fi, IFE) are from Lufthansa product pages, not this PDF.