These two types are amphibious air-cushion vehicles with flexible skirts and sidewall air-cushion vehicles with rigid sidewall that project into the water.
Ezi ndidi zimbini zizithuthi ezihamba emhlabeni nasemanzini zokhuseleo lomoya kunye nemida ethambileyo namacala odonga kwisithuthi esikhuselekileyo somoya esinamadonga aqinileyo emacaleni abonakalisa emanzini.