air 168Seat Specifications ; 29 Seats. 28 Seats. 56 Seats. 168 Seats ; 22.5 in 79-80 in layflat bed. 57 cmVolume 168, 15 January 2020, 106535. ... To use the parameter supply air temperature as an example, as seen in F. 7, we assume the current time is t and the current supply