vessel less than 4 m in length which uses an internal combustion engine having a water jet pump as its primary source of propulsion and designed to be operated by a person or persons sitting, standing or kneeling on, rather than within the confines of, a hull, kokpitita, statsionaarmootoriga vesiturbiinsõiduk kogupikkusega kuni 4 meetrit, mida juhitakse istudes, põlvili või seistes