The AEC NS-Type bus was first designed in 1921-22 and introduced in 1923.
NS Type Bus (Open Top)
The bus featured several important modifications over previous models, it was lowered so getting on and off was easier for the passenger, and it was also much more comfortable than both its predecessors such as the K-Type and S-Type, and also the trams available which all had wooden slatted seas whereas the NS Type had padded and upholstered seats.
NS Type Bus Enclosed Top
Early models had exposed top decks as height restrictions from the police had banned taller prototypes due to clearance with over head obstacles like bridges, tram lines, overhanging trees etc. It wasn’t until 1925 when covered top deck models were given the go ahead. It was also around this time when air inflated pneumatic tyres made it onto buses giving a much more comfortable ride than the solid rubber tyres that had gone before.
NS Type Bus Rear Showing Staircase.