Translation of "biposto" into English

alianti con una massa a vuoto massima inferiore a 80 kg se monoposto o a 100 kg se biposto, compresi quelli con decollo mediante rincorsa;

gliders with a maximum empty mass, of less than 80 kg when single-seater or 100 kg when twoseater, including those which are foot launched;

Sembra un biposto in quella piccola pista costruita al sicuro.

It looks like a two seater with that small field built in the clear.