Paired herringbone high density business class seating arrangement

1. A seating arrangement comprising:

at least one set of columns comprising an aisle column of seating units positioned adjacent a wall column of seating units, wherein the aisle column is positioned adjacent an aisle, and the wall column is positioned adjacent an exterior wall;

wherein each seating unit comprises a bed position having a head end and a foot end, wherein at least a height-limited portion of the foot end is below a delineating height that separates a lower portion of the aisle from a upper portion of the aisle;

wherein the seating units in the adjacent columns are longitudinally aligned without any overlap in a longitudinal direction and positioned adjacent one another to form two-seat units, each two-seat unit comprising one seating unit from the aisle column and one seating unit from the wall column, wherein an angle of each seating unit in the aisle column is equal in magnitude and opposite direction to an angle of each seating unit in the wall column so that a distance between the head ends is less than a distance between the foot ends;

wherein the height-limited portion of the foot ends in the aisle column of seating units is positioned adjacent the aisle so that the lower portion of the aisle below the delineating height is narrower than the upper portion of the aisle at or above the delineating height; and wherein the height-limited portion of the foot ends in the wall column of seating units is positioned within a concave portion of the exterior wall.

2. The seating arrangement of claim 1 , wherein each seating unit comprises a longitudinal axis that forms an angle with a center axis of the two-seat unit.

3. The seating arrangement of claim 2 , wherein each angle has a magnitude of 5 degrees to 15 degrees.

4. The seating arrangement of claim 1 , wherein a width of the aisle below the delineating height is a minimum required width of an aircraft aisle below the delineating height.

5. The seating arrangement of claim 4 , wherein the width of the aisle below the delineating height is 15 inches.

6. The seating arrangement of claim 5 , wherein the delineating height is 25 inches.

7. The seating arrangement of claim 1 , wherein a width of the aisle at or above the delineating height is a minimum required width of an aircraft aisle at or above the delineating height.

8. The seating arrangement of claim 7 , wherein the width of the aisle at or above the delineating height is 21 inches.

9. The seating arrangement of claim 8 , wherein the delineating height is 25 inches.

10. The seating arrangement of claim 1 , wherein a lateral dimension of the height-limited portion of each foot end is approximately 1 inch to approximately 5 inches.

11. The seating arrangement of claim 1 , wherein the seating arrangement has a pitch per passenger of greater than 9 and less than 10.5.

12. The seating arrangement of claim 1 , wherein the bed positions of the seating units in the aisle column and the bed positions of the seating units in the wall column do not overlap.

13. The seating arrangement of claim 1 , wherein the bed positions of the seating units are all arranged at substantially a same height.

14. The seating arrangement of claim 1 , further comprising a second set of columns, wherein the aisle column is positioned adjacent the aisle, and the wall column is positioned adjacent a second exterior wall.

15. The seating arrangement of claim 14 , wherein the seating arrangement is positioned in a narrow body aircraft.

16. The seating arrangement of claim 14 , further comprising a third set of columns and a second aisle, wherein the aisle column and the wall column are positioned between the two aisles.

17. The seating arrangement of claim 16 , wherein the seating arrangement is positioned in a wide body aircraft.

18. A seating arrangement comprising:

at least one set of columns comprising an aisle column of seating units positioned adjacent a wall column of seating units, wherein the aisle column is positioned adjacent an aisle, and the wall column is positioned adjacent an exterior wall;

wherein each seating unit comprises a bed position having a head end and a foot end, wherein at least a height-limited portion of the foot end is less than a delineating height that separates a lower portion of the aisle from a upper portion of the aisle;

wherein the seating units in the adjacent columns are longitudinally and laterally aligned and positioned adjacent one another to form two-seat units, each two-seat unit comprising one seating unit from the aisle column and one seating unit from the wall column, wherein an angle of each seating unit in the aisle column is equal in magnitude and opposite direction to an angle of each seating unit in the wall column so that a distance between the head ends is less than a distance between the foot ends;

wherein the height-limited portion of the foot ends in the aisle column of seating units is positioned adjacent the aisle so that the lower portion of the aisle below the delineating height is narrower than the upper portion of the aisle at or above the delineating height; and wherein the height-limited portion of the foot ends in the wall column of seating units is positioned within a concave portion of the exterior wall.