Sơ đồ chỗ ngồi Lufthansa Airbus A321ceo

Layout transcribed row-by-row from the Lufthansa fleet PDF 202603_A321-200_200.pdf (revision 2026-03), the authoritative published seat map (this is the only current A321ceo PDF in the 321/ fleet directory — no separate A321-100 PDF exists; the map is labeled simply "Airbus A321" and covers the -100/-200 ceo). 3-3 layout (columns A B C | D E F); rows 13 and 17 are not used and row 10 is the Door 2 vestibule (no seats), so the seat rows are 1-9, 11-12, 14-16 and 18-38. FOUR full door pairs (classic A321, no overwing exits): Door 1 (L/R) forward, Door 2 (L/R) forward of the wing at the row 9/10 boundary, Door 3 (L/R) aft of the wing at the row 25/26 boundary, and Door 4 (L/R) at the rear. Forward galley/stowage complex (window side) + accessible lavatory (left) ahead of row 1; rear galley + two rear lavatories behind row 38. IRREGULAR ROWS (read from the diagram): row 1 shows only A/C (the forward galley/closet complex takes the D/E/F side and the B middle is a blocked position); rows 2 and 3 show A/C/D/F (the B/E middles are drawn crossed-out — kept free in the representative Business layout); row 10 is the Door 2 vestibule with no passenger seats (omitted); and row 25, directly in front of the Door 3 (both-sides) exits, loses its A and F window seats to the door openings (center seats B/C/D/E only). These reductions bring a nominal 36x6 grid to the published 200 seats. 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, 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. The published map draws the forward rows 1-3 in the representative Business arrangement (blocked middles / galley); those blocked-middle positions are NOT modeled as seats, so totalSeats equals the published 200. Location/legroom tiers within the one cabin are expressed as zones: Preferred Zone = rows 8, 9, 12, 14 (forward Economy at a surcharge; identical hardware, flagged preferred_zone, rated standard as a location premium); Extra-legroom exit rows = 11 (behind Door 2) and 26 (behind Door 3), given a distinct seatType (canonicalTier extra_legroom_economy) so they count as N in cabinSummary. windowGridType is OMITTED: data/window-grids/ has no a321ceo engineering grid (only a321neo, whose ACF door/exit geometry differs), so no variant-exact grid exists to bind and the window classifier is left unpinned. 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 all window seats (A/F): the map shows seat positions, not whether a structural window lines up. Wing extent and monument sides are read from the diagram. Amenities (Wi-Fi, IFE) are from Lufthansa product pages, not this PDF.