A seating system and a passenger accommodation unit for a vehicle

The present invention relates to the field of reclinable seating (140), particularly for use on a passenger vehicle, such as an aircraft. There is provided a recliner seat assembly (140), particularly for use on a vehicle such, for example, as an aircraft, comprising a fixed supporting portion (142) adapted for supporting the assembly off a floor (130) of the vehicle, a reclinable seat portion comprising a seat-pan (171) and a back-rest (172) and seat connecting means (342) adapted for connecting said seat portion to said supporting portion, said connecting means including a seat reclining mechanism (280/318) adapted for allowing and controlling movement of said seat portion between a first upright position and a second fully reclined position and a selectively operable, bi-directional motor adapted for driving said seat portion between said first and second positions; wherein said seat reclining mechanism comprises a non-reversible linear actuator (270/271) connected between said motor and said seat portion.