Denah kursi JetBlue Airways Airbus A321ceo — 200 kursi

JetBlue's single-class Airbus A321-200 (A321ceo), which JetBlue's booking/seats system labels 'Airbus A321 Classic'. PRIMARY-SOURCED COUNTS (jetblue.com/help/seats "Individual Seat Details", server-rendered): A321 Classic = 200 seats, 3x3 layout, seat width 18 in. Special-row facts from the same page: Limited recline = Rows 9, 22; No recline = N/A; Fixed armrests = Rows 1, 10, 23; Reserved (accessibility) rows = Row 1 seats D/E/F, Row 6, Row 7 seats A-E. The 42 EvenMore (Y+) / 158 standard economy (Y) split of the 200 total is from Wikipedia's JetBlue fleet table (A321-200 all-economy sub-row: 28 in service, Y+ 42, Y 158, Total 200); 42 + 158 = 200 reconciles with JetBlue's own 200 total. DERIVATIONS (JetBlue publishes no per-seat A321 map outside a booking session, and competitor seat-map sites are barred by policy) — layoutProvenance derived_from_counts: (1) EvenMore (42) = the front block Rows 1-5 (30) plus the two mid-cabin exit rows 10 and 23 (12). Row 1 is the front bulkhead (fixed armrests, tray-in-armrest, no under-seat stowage); Rows 6-7 (the accessibility-reserved rows) are the first STANDARD Core rows, which pins the EvenMore front block at Rows 1-5. The two exit rows carry JetBlue's "Fixed armrests: Rows 10, 23", and Rows 9 and 22 immediately ahead carry the sourced "Limited recline". (2) The A321ceo has four full door pairs (no over-wing window exits — confirmed by the mid-cabin door rows 10/23, unlike the A321neo which uses over-wing exits at rows 15/16). Door 1 forward, Door 2 beside row 10, Door 3 beside row 23, Door 4 aft. Wing span (rows ~11-19) and all galley/lavatory monuments are structural estimates. (3) Standard Core (158) is not a multiple of six, so the aft cabin has partial rows: Row 33 = 5 seats (F displaced by a rear-right lavatory) and the last row 34 = 3 seats (A/B/C; the D/E/F block displaced by the aft galley and lavatories). The partial-seat positions are derived; the 158 total is sourced. (4) All seat-level ratings/flags are structural inference EXCEPT the limited-recline rows (9, 22), fixed-armrest rows (1, 10, 23) and accessibility-reserved rows (1, 6, 7), which are from jetblue.com/help/seats. Per JetBlue "No recline = N/A" for this type, so no seat is modeled as fully non-reclining. UNSOURCED MEASUREMENTS (marked unsourced:true): Core pitch (JetBlue markets "most legroom in coach" but publishes no A321 number) and the EvenMore minimum pitch (JetBlue markets "up to 38 in"; the floor is not published, ~35 in estimated). windowGridType is intentionally OMITTED: data/window-grids/ has no a321ceo grid, and the a321neo grid is a different variant (different exit architecture), so it must not be bound; every window seat therefore stays windowAlignment "unknown".